bims-evares Biomed News
on Evaluation of research
Issue of 2020‒09‒06
twenty-nine papers selected by
Thomas Krichel
Open Library Society

  1. Hypertension. 2020 Aug 31. HYPERTENSIONAHA12015711
    Devos P, Ménard J.
      Bibliometric analysis, a powerful tool for assessing trends in research output, was employed to analyze the evolution of hypertension research over a 20-year period. The analysis was based on 90 308 original articles and a citation analysis. The use of bibliometric as a potential tool for shaping research policy at the institution or country level was also explored. The number of published hypertension articles increased by 43.5% over the 20-year period. By contrast, the increase in the number of articles in all medical disciplines was 96%, and in the cardiovascular field was 64%. Of the 6 countries producing the largest number of articles, the United States was consistently the major contributor. There was a slight decrease from Japan, a slight increase from the United Kingdom, and relatively stable output from Germany and Italy over the study period. Output from China showed the strongest growth. The trends in Specialization Index and Category Normalized Citation Impact varied by country. In Russia, Poland, and Brazil, increases in output were greater for hypertension research than for medical research in general. The United Kingdom and Denmark had greater hypertension research output than the other countries. VOSviewer analysis showed an intensification of collaborations between countries and a shift, over 10 years, from 3 clusters towards 2 clusters. Such analysis may help to shape research policy at the country level and can be similarly performed for institutions. Historical changes in hypertension research can be monitored over decades if the same channels continue to be used for communication of scientific results.
    Keywords:  PubMed; bibliometrics; category normalized citation impact; publications; specialization index
  2. Rev Esp Enferm Dig. 2020 Sep 02. 112 701-707
    Tan S, Huang W, Gao L, Ren Y, Peng Y, Tang X.
      BACKGROUND: the present study aimed to describe the characteristics of articles that had the most citations in the field of digestive endoscopy.METHOD: articles included were obtained from the Web of Science database, which were selected and ranked according to the number of citations. The characteristics of the 100 most cited articles were then analyzed.
    RESULTS: the number of citations of the top 100 of 303,063 eligible papers ranged from 370 to 2,866. The most cited paper was a study of colorectal cancer prevention using colonoscopic polypectomy. The most common topics discussed by the top 100 papers included colonoscopy (n = 33) and upper gastrointestinal endoscopy (n = 23), with most of the papers focusing on diagnosis (n = 24) and treatment (n = 15).
    CONCLUSION: by identifying the most influential publications, the present study could serve as a guide toward further development in the area of digestive endoscopy.
  3. Int J Med Mushrooms. 2020 ;22(6): 521-534
    Chan XH, Sabaratnam V, Abdullah N, Phan CW.
      The research field of culinary and medicinal mushrooms has been well developed since the first relevant publication in 1966. However, to date, there has been no bibliometric analysis published specifically for this field. This study aimed to assess the most influential publications as well as the research trends and important drivers in the field of culinary and medicinal mushrooms. Scopus was used to identify relevant publications and the 1000 most-cited publications were identified and analyzed. Bradford's law of scattering shows one-third of the papers were published in 14 core journals, with a total of 102 papers published in International Journal of Medicinal Mushrooms. There is an insignificant negative correlation (Pearson's correlation coefficient, r = -0.355) between the journal impact factor and publication count. VOSviewer was used to generate a country network. China represents Asia's research center in this field, having contributed 20% of the 1000 most-cited publications. A term map was also created to visualize the co-occurrence of key terms in the domain. Different biological activities such as antioxidant and antitumor properties of mushrooms appeared to be a recurring topic in this field. Wasser (2003) showed the highest citation count (n = 1282), which is almost double the second most-cited publication (n = 611). There is a weak positive correlation (r = +0.237) between the years since publication and total citation count. In conclusion, this bibliometric study will assist researchers to comprehend the current status of the research on culinary and medicinal mushrooms, and to visualize the future impact of such an important field.
  4. Global Spine J. 2020 Sep 01. 2192568220948832
    Yin M, Xu C, Ma J, Ye J, Mo W.
      STUDY DESIGN: Bibliometric analysis.OBJECTIVE: Cervical spondylotic myelopathy (CSM) has become the most common cause of spinal cord dysfunction. Many topics of CSM still remain controversial. This study aimed to illustrate the overall knowledge structure and development trends of CSM.
    METHODS: Research data sets were acquired from the Web of Science database and the time span was defined as "2000 to 2019." VOS viewer and Citespace software was used to analyze the data and generate visualization knowledge maps. Annual trends of publications, distribution, H-index status, co-authorship status, and research hotspots were analyzed.
    RESULTS: A total of 2367 publications met the requirement. The largest number of articles was from the United States, followed by Japan, China, Canada, and India. The highest H-index was found for articles from the United States. The highest number of articles was published in Spine. The cooperation between the countries, institutes, and authors were relatively weak. Cervical sagittal alignment, predictive factor, diffusion tensor imaging, and the natural history of CSM may become a frontier in this research field.
    CONCLUSION: The number of publications showed an upward trend with a stable rise. Most of the publications are limited to a few countries and institutions with relatively weak interaction. The United States, Canada, Japan, China, and India have made significant contributions to the field of CSM. The United States is the country with the highest productivity, not only in quality but also in quantity. Cervical sagittal alignment, predictive factor, diffusion tensor imaging, and the natural history of CSM are the research hotspots in the recent years.
    Keywords:  bibliometric analysis; cervical spondylotic myelopathy; research trends; visualization
  5. Chin J Integr Med. 2020 Sep 02.
    Yin MC, Wang HS, Yang X, Xu CQ, Wang T, Yan YJ, Fan ZX, Ma JM, Ye J, Mo W.
      BACKGROUND: To illustrate the research framework, overall knowledge structure, and development trends of Chinese medicine (CM) treatment for osteosarcoma (OS) by using a bibliometric analysis and newly developed visualization tools.METHODS: Research datasets were acquired from the Web of Science (WOS) database from January 1, 1980 to September 30, 2019. VOS viewer and Citespace software was used to analyze the data and generate visualization knowledge maps. Annual trends of publications, distribution of institutes, distribution of journals, citation and H-index status, co-authorship status, research hotspots and co-citation status were analyzed.
    RESULTS: A total of 223 publications in the WOS database met the requirement. The number of published articles showed a rise but the citation frequency and the H-index of China were relatively low. The cooperation between the countries, institutes and authors were relatively weak. Most publications were basic researches. Most of the previous researches focused on basic mechanisms of CM in treating OS, and therapy and improvement of dosage form may become a frontier in this research field.
    CONCLUSIONS: Compared with other fields, the field of CM treatment for osteosarcome is still in infancy. The distribution of researches is imbalanced and cooperation between countries, institutions and authors remains to be strengthened. Furthermore, basic research occupies an absolute dominant position, and the exploration of the molecular mechanism of CM in preventing and treating OS may become a key point in the future.
    Keywords:  Chinese medicine; bibliometric analysis; osteosarcoma; research trends; visualization
  6. Int J Environ Res Public Health. 2020 Aug 27. pii: E6218. [Epub ahead of print]17(17):
    Yang W, Zhang J, Ma R.
      OBJECTIVE: The outbreak of infectious diseases has a negative influence on public health and the economy. The prediction of infectious diseases can effectively control large-scale outbreaks and reduce transmission of epidemics in rapid response to serious public health events. Therefore, experts and scholars are increasingly concerned with the prediction of infectious diseases. However, a knowledge mapping analysis of literature regarding the prediction of infectious diseases using rigorous bibliometric tools, which are supposed to offer further knowledge structure and distribution, has been conducted infrequently. Therefore, we implement a bibliometric analysis about the prediction of infectious diseases to objectively analyze the current status and research hotspots, in order to provide a reference for related researchers.METHODS: We viewed "infectious disease*" and "prediction" or "forecasting" as search theme in the core collection of Web of Science from inception to 1 May 2020. We used two effective bibliometric tools, i.e., CiteSpace (Drexel University, Philadelphia, PA, USA) and VOSviewer (Leiden University, Leiden, The Netherlands) to objectively analyze the data of the prediction of infectious disease domain based on related publications, which can be downloaded from the core collection of Web of Science. Then, the leading publications of the prediction of infectious diseases were identified to detect the historical progress based on collaboration analysis, co-citation analysis, and co-occurrence analysis.
    RESULTS: 1880 documents that met the inclusion criteria were extracted from Web of Science in this study. The number of documents exhibited a growing trend, which can be expressed an increasing number of experts and scholars paying attention to the field year by year. These publications were published in 427 different journals with 11 different document types, and the most frequently studied types were articles 1618 (83%). In addition, as the most productive country, the United States has provided a lot of scientific research achievements in the field of infectious diseases.
    CONCLUSION: Our study provides a systematic and objective view of the field, which can be useful for readers to evaluate the characteristics of publications involving the prediction of infectious diseases and for policymakers to take timely scientific responses.
    Keywords:  bibliometric analysis; infectious diseases; prediction
  7. Int J Ment Health Syst. 2020 ;14 70
    Sweileh WM.
      Background: Fragile states pose a global challenge. Assessing health research activity on people living in these states can help identify neglected health domains in fragile settings. The objective of the current study was to assess and describe health research activity on people living in fragile states in the alert zone.Method: A bibliometric method was applied using SciVerse Scopus. Research articles published on people in fragile states in the alert zone were retrieved and analyzed. The Fragile State Index (FSI) score was used for selection of states in the alert zone. The analysis was limited to 1 year; 2018.
    Results: The search query found 2299 research articles giving an average of 2 research articles per one million population per year in the selected fragile states. The number of research articles per one million population was not significantly correlated (p = 0.053; r = - 0.349) with FSI scores. However, it was significantly correlated with the extent of international research collaboration (p < 0.01, r = 065). Research on communicable diseases was the largest research domain (763 articles; 33.2%) followed by maternal/women's health (430 articles; 18.7%), non-communicable diseases (291 articles; 12.7%), health system/policy (271 articles; 11.8%) and psychosocial and mental health (89; 3.9%). There were three research themes in the research domain of infectious diseases: HIV/AIDS; water-borne infectious diseases; and miscellaneous infectious diseases such as tuberculosis and malaria. The top ten cited articles were mainly on infectious diseases, particularly on malaria and Lassa fever. Of all the retrieved documents, 727 (31.6%) research articles appeared in national/regional journals while the remaining appeared in international journals. The World Health organization was the most active funding organization for research on fragile states. Top ten active institutions were mainly based in fragile states with the lowest FSI score, specifically Ethiopia, Uganda, Nigeria, and Pakistan.
    Conclusion: Research on fragile states was relatively low. Research on mental health and health system/policy should be encouraged. Collaboration and funding might help academic institutions in fragile states to make health problems in these countries more visible.
    Keywords:  Bibliometric analysis; Fragile states; Health; Infectious diseases; Mental health
  8. Medicine (Baltimore). 2020 Aug 14. 99(33): e21552
    Kung SC, Chien TW, Yeh YT, Lin JJ, Chou W.
      BACKGROUND: Individual researchers' achievements (IRA) are determined by both personal publications and article citations such as Author Impact Factor, h-index, and x-index. Due to those indicators not truly supporting a normal distribution, the traditional t-test and Analysis of variance are not allowed for RA comparison in groups. The objective of this study is to use the bootstrapping method to verify whether hospital physicians have different h-indexes.METHODS: We downloaded 63,266 journal articles with their corresponding citations for 2128 researchers from a Taiwan university website on December 10, 2019. Their IRAs were assessed using the bibliometric h-index. A pyramid plot was used to compare the h-index patterns between institutes. The x-index and the Kano model were found to be complemental to the h-index for identifying the group IRA characteristics and rankings, including colleges and departments in the university study, the School of Medicine, and the Affiliated Hospital. The bootstrapping method was applied with an estimated 95% confidence interval (CI) to distinguish the differences in physicians between the Internal Medicine and Surgery departments. The stronger-than-the-next coefficient (SC) for the highest represents the RA strength.
    RESULTS: The highest h-indices were found in the College of Engineering, School of Medicine, and the Department of Internal Medicine in groups of colleges (SC = 0.71), all departments (SC = 0.83), the School of Medicine (SC = 0.74), and the Affiliated Hospital (SC = 0.56), respectively. No difference in h-index for hospital physicians was found between departments in Internal Medicine (Mean = 2.14, 95% CI = 1.02,3.26) and Surgery (mean = 2.5, 95%CI = 1.48, 3.52).
    CONCLUSIONS: The x-index and the Kano models can complement the h-index for identifying group IRA characteristics. The bootstrapping method allows estimation of the sampling distribution for almost any statistic using random sampling methods and gains measures of accuracy (as defined by 95% CI). The finding of no difference in h-index for hospital physicians between departments in Internal Medicine and Surgery requires further investigation in the future.
  9. FEMS Microbiol Lett. 2020 Aug 29. pii: fnaa146. [Epub ahead of print]
    Maicas S, Sánchez-Fresneda R, Argüelles JC.
      Scientific journals have played an essential role in the diffusion of research breakthroughs. For many years there was no competition between journals, but, in recent decades they have become categorized by a careful assessment of their published contents based on several metric parameters. Of greater note, the 'prestige index' has become an essential tool used by public and private institutions to develop their scientific policy. Thus, the evaluation of research staffs, the concession of grants or fellowships, and even the scholarly reputation and academic positions are mainly founded on a given journal's 'quality'. As a consequence, the prestige of some journals has gone up, based on the assumption that they publish cutting-edge science, while the reputation of others has gone down. Within the field of Microbiology, we have carried out a direct analysis by monitoring several representative classic journals according to customary metric parameters over twenty years. This analysis also covers another set of journals of recent appearance (novel journals). Although a direct comparison between both groups is not possible, this approach serves to perceive the trends of publication among microbiologists. Our preliminary conclusion is that the continued existence of many so-termed classic journals devoted to Microbiology is seriously threatened.
    Keywords:  citations; classic journals; impact factor; metric parameters; microbiology; novel journals
  10. Rev Lat Am Enfermagem. 2020 ;pii: S0104-11692020000100610. [Epub ahead of print]28 e3312
    Benton DC, Brenton AS.
      OBJECTIVE: this study examined scholarly output relating to nursing advocacy contributions toward influencing policy by authors in countries of the Pan American Health Organization.METHOD: the study utilizes a bibliographic analysis of papers indexed in Scopus authored by PAHO member state scholars. VOSviewer conducted coauthor and cooccurrence analysis to generate visualizations of the relationships between authors, countries of origin and keywords.
    RESULTS: 7,773 papers with 21,523 authors met the inclusion criteria. An increase of publications on policy starting in 1962 was found. Co-authorship identified a fragile relationships structure with few authors bridging networks of collaboration. By country of origin, 22 of 35 member states contributed to policy literature; 17 in a connected network and 5 contributing but neither connected to peers nor other member states. Keyword analysis identified 20 specific data clusters.
    CONCLUSION: our findings are aligned with the Nursing Now Campaign. This bibliographic analysis provides an important benchmark into current policy advocacy activity in PAHO against which future progress in the region can be assessed. There is scope for greater collaboration amongst authors and this could be targeted toward engagement of nurses in member states not-yet or only partially active in this space.
  11. Br J Oral Maxillofac Surg. 2020 Aug 11. pii: S0266-4356(20)30392-2. [Epub ahead of print]
    North AS, Ur-Rehman J, Lin DJ.
      The British Association of Head and Neck Oncologists (BAHNO) hosts an annual meeting at which research from all specialties involved in the management of head and neck oncology is presented. We have analysed the rate of publication of the abstracts presented, and reviewed the finalised programmes from the meetings between 2009 and 2015. The 2014 meeting was excluded as it was a combined international meeting. Key terms were searched in PubMed and Google Scholar to identify publications in peer-reviewed journals. If none was identified, these platforms were searched for the authors' names. Published abstracts were excluded. Study and journal demographic data were extracted. A total of 363 abstracts were presented, including 75 oral, 271 poster, and 17 of unclear presentation method. The total publication rate was 31.1%, representing 46.7% of oral abstracts and 27.3% of poster presentations. The mean time to publication was 16.5 months. Research was published in 45 individual journals with a mean (range) impact factor of 2.559 (0.886-36.418). There was a trend towards an increasing number of presentations over time with a decreasing publication rate. However, there was no trend in mean impact factor by year. The publication rate of abstracts presented at the BAHNO annual meetings is comparable with that of other large otolaryngology and head and neck conferences. The mean impact factor has not previously been utilised within this field, but may prove a useful metric that enables monitoring of the quality of presented research and comparison of the impact of the conferences.
    Keywords:  Abstracts; Conference; Head and Neck; Otolaryngology; Publication rate
  12. Int J Surg. 2020 Aug 29. pii: S1743-9191(20)30632-4. [Epub ahead of print]
    Battaglia F, Farhan SA, Narmeen M, Karimuddin AA, Jalal S, Tse M, Khosa F.
      BACKGROUND: Gender disparity remains prevalent in the field of academic surgery with an under-representation of females at senior leadership ranks. A wide variety of causes are reported to contribute to this gender-based discrimination but a quantitative analysis has yet to be conducted. This cross-sectional study aims to document gender disparity in academic and leadership positions in surgery as well as its relationship with scholarly productivity.MATERIAL AND METHODS: The American Medical Association's Fellowship and Residency Electronic Interactive Database (FREIDA), was used to identify General Surgery programs. Each institution's website was used to identify its faculty's primary profiles for data collection. Individuals with an MD or DO, and an academic ranking of Professor, Associate Professor or Assistant Professor were included. Academic productivity was quantified by recording H-index, number of publications, number of citations, and years of active research of a physician. All statistical analysis was performed on SPSS Statistics version 20.0.
    RESULTS: A total of 144 academic programs were including in our analysis constituting 4085 surgeons, only one-fifth (n = 873, 21%) of which were females. Furthermore, only 19% of all leadership positions were assumed by female surgeons. Leadership positions and academic rank correlated significantly with increasing research productivity. The difference in H-index between genders was statistically significant (P < 0.05) with men possessing a higher median for H-index (AAMC, 2017) [13] than women (Marschall and Karimuddin, 2003 Mar) [9]. Transplantation Surgery (Hirsch, 2005) [17] had the highest median H-indices for female surgeons. Male surgeons (n = 18) were twice as likely to be Departmental Chairs as their female counterparts (n = 9). However, female surgical oncologists held the highest proportion of leadership positions (31%).
    CONCLUSION: A significant gender-based disparity was found in leadership positions and academic ranks. Research productivity appeared to be integral for academic and leadership appointments. Measures that enhance institutional support, mentorship, and sponsorship are imperative to achieve overall parity in general surgery.
    Keywords:  Academic surgery; Gender disparity; Leadership positions; Research productivity; Women surgeons
  13. J Grad Med Educ. 2020 Aug;12(4): 455-460
    Guzman AK, Rzepecki AK, Lewis GD, Balagula Y, McLellan BN.
      Background: Scholarly productivity is an assessment metric for dermatology residents and faculty. How the bibliometric h-index, a publicly available metric that incorporates the quantity and quality of publications, relates to early career choices of dermatologists has not been investigated.Objective: We determined the h-indices of the 2017 diplomates of the American Board of Dermatology to ascertain its association with career choice.
    Methods: A cross-sectional analysis was performed using the published list of the 2017 diplomates. Gender and PhD status were compiled. The Scopus database was queried for publications and h-indices. The primary outcome was the pursuit of an academic position, nonacademic position, or fellowship after board certification.
    Results: Among 475 (96%) diplomates, the median (range) h-index was 2 (0-14). Those with MD and PhD degrees had greater h-indices (6.4 ± 3.1 vs. 2.3 ± 2.3, P < .05). There was a difference (P < .05) in h-index between diplomates pursuing an academic position (3.6 ± 3.1), non-procedural fellowship (3.3 ± 3.1), procedural fellowship (2.5 ± 2.0), and non-academic position (2.1 ± 2.1).
    Conclusions: The h-index quantifies academic productivity and may predict early career choices in dermatology.
  14. J Am Acad Dermatol. 2020 Aug 28. pii: S0190-9622(20)32499-3. [Epub ahead of print]
    Miot HA, Ianhez M, Ramos PM.
    Keywords:  Bibliometric index; Dermatology; Impact Factor
  15. AJR Am J Roentgenol. 2020 Sep 02. 1-4
    Alkhawtani RHM, Kwee TC, Kwee RM.
      OBJECTIVE. The purpose of this study is to investigate the frequency of funded research published in major radiology journals and to determine whether funding is associated with the article citation rate. MATERIALS AND METHODS. A total of 600 consecutive original research articles published in three journals-AJR, Radiology, and European Radiology-were included. Linear regression analysis was performed to determine the association between research funding and the article citation rate, as adjusted for journal, continent of origin of the first author, subspecialty, study findings included in the article title, number of authors, immediate open access publication, and time since publication online. RESULTS. Funding was declared for 286 of 600 included articles (47.7%). Sources of funding were as follows: federal sponsorship (29.4%), a nonprofit foundation (16.4%), both federal sponsorship and a nonprofit foundation (16.1%), private industry (10.1%), intramural institutional research funding (9.8%), and other funding sources (18.2%). Articles with first authors whose continent of origin was Europe (p < 0.001), vascular and interventional radiology articles (p < 0.001), and articles published in AJR (p < 0.001) were significantly more frequently unfunded than funded. Articles published in Radiology were significantly more frequently funded (p < 0.001). The citation rate was not significantly different between funded and unfunded articles (p = 0.166). In adjusted linear regression analysis, funding was not significantly associated with the citation rate (β coefficient, -0.31; 95% CI, -3.27 to 2.66; p = 0.838). CONCLUSION. Almost half of the research articles published in major radiology journals declared funding, a proportion that has increased compared with findings from previous studies (17% of articles in a study from 1994 and 26.9% of articles in a study of literature published between 2001 and 2010). Most funded articles received support from federal sponsors or nonprofit foundations, whereas only a minority of funded articles were supported by private industry. Funding was not associated with a higher citation rate.
    Keywords:  bibliometrics; financial support; financing; organized; radiology
  16. PLoS One. 2020 ;15(9): e0238583
    Boudry C, Durand-Barthez M.
      The purpose of this paper was to assess the presence of researchers on two author identifier services (ORCID and ResearcherID) and to compare the results with two academic social networks ( and ResearchGate) using the categories of discipline, career advancement, and gender in a medium sized multidisciplinary university in France (University of Caen Normandy). Metrics such as number of publications per researcher, h-indexes, and average number of citations were also assessed. Of the 1,047 researchers studied, 673 (64.3%) had at least one profile on the four sites, and the number of researchers having multiple profiles decreased as more sites were studied. Researchers with only one profile numbered 385 (36.8%), while 204 (19.5%) had two, 68 (6.5%) had three, and only 16 (1.5%) had four. ResearchGate had by far the highest number of researchers present, with 569 (54.3%), whereas presence on the other sites was about 15%. We found that, apart from, researchers in Sciences, Technology, and Medicine (STM) were over-represented. Overall, experienced male researchers were over-represented on the sites studied. Our results show that, because of the numerous profiles lacking publication references (particularly on ORCID) and a low presence of researchers on the four sites studied (except for ResearchGate), assessing the number of publications, h-indexes, or average number of citations per article of individuals or institutions remains challenging. Finally, our data showed that French researchers have not adopted the use of the two author identifier sites (i.e. ORCID and ResearcherID). As long as French researchers remain reticent, these sites will not be able to provide the services for which they were created: addressing the problem of author misidentification, consequently providing exhaustive access to scientific production and bibliometric indicators of individual researchers and their institutions.
  17. Zhongguo Zhen Jiu. 2020 Aug 12. 40(8): 897-901
    Li WJ, Guo XR, Jiang X, Zhao TT, Zhang SS.
      The rule and characteristics of clinical acupoint selection were explored in treatment of puerperal insufficient lactation with acupuncture and moxibustion. The clinical articles on the treatment of puerperal insufficient lactation with acupuncture and moxibustion were retrieved from the databases of CNKI, VIP and Wanfang from the date of establishment to June 1, 2019. The articles were screened in accordance with the inclusion and exclusion criteria. The prescriptions of acupuncture and moxibustion were extracted and normalized. Using Microsoft Excel 2016 software, the use frequency, meridians involved and acupoint distributions were analyzed. Using SPSS Statistics 21.0 software, the cluster and factor analyses were conducted. Totally, 102 articles were included,108 acupoint prescriptions were extracted, 65 acupoitns were designed and the total use frequency was 654 times. The top three acupoints used in treatment of puerperal insufficient lactation were Danzhong (CV 17), Rugen (ST 18) and Shaoze (SI 1). The most frequently involved meridians were the stomach meridian, the conception vessel, the small intestine meridian and the liver meridian. The acupoints were mainly distributed in the chest and four extremities. It was showed in cluster analysis that Rugen (ST 18), Shaoze (SI 1), Zusanli (ST 36) and Danzhong (CV 17) represent 3 clusters and a total of 7 common factors were extracted. The acupoint selection is based on syndrome differentiation in treatment of puerperal insufficient lactation with acupuncture and moxibustion, of which, the local acupoints are predominated and the distal acupoints are combined.
    Keywords:  acupuncture and moxibustion; cluster analysis; factor analysis; puerperal insufficient lactation; rule of acupoint selection
  18. J Surg Educ. 2020 Aug 31. pii: S1931-7204(20)30321-4. [Epub ahead of print]
    Toci GR, Elsner JA, Bigelow BF, Bryant BR, LaPorte DM.
      OBJECTIVE: Little is known about the importance of an applicant's research productivity in terms of matching into a highly-ranked orthopaedic residency. We characterized the research of orthopaedic residents who matched in 2017 to determine whether 1) program tiers differed by their residents' research; and 2) discrete increases in applicants' research were associated with matching into higher-ranked programs.DESIGN: We searched Scopus for resident publications accepted before 2017 or published through January 2017. Using an established ranking system, programs were ranked (tier-1, highest; tier-5, lowest) by their department's number of citations from 2005 to 2015. We compared resident research productivity among these 5 tiers. We then categorized residents by discrete levels of research productivity (0, 1, or ≥2 publications) and compared the differences in matched program rank.
    SETTING: Data collection and analysis performed at Johns Hopkins Hospital, a tertiary care center in Baltimore, MD.
    PARTICIPANTS: We obtained our sample from allopathic orthopaedic program websites, excluding military programs and international students, for a total of 111 programs (565 of 726 matched residents [78%]).
    RESULTS: Tier-1 and tier-2 programs differed significantly in their residents' publications, h-index, and citations. Programs of other tiers did not differ significantly. Applicants with 1 publication matched to higher-ranked residency programs than those with 0 publications. When comparing residents with 1 publication versus residents with more than 1 publication, we found no significant differences in program rank matched.
    CONCLUSIONS: Our results suggest that higher-tier orthopaedic residency programs match residents with greater research productivity than do lower-tier programs. Having 1 publication was associated with matching into a higher-ranked program but no significant associations were observed beyond the first publication.
    Keywords:  Bibliometric analysis; H-index; Orthopaedic residency; Publications; Research; Residency match
  19. Anaesthesia. 2020 Sep 04.
    Ratnayake G, El-Boghdadly K, Pandit JJ.
      Over a decade ago, bibliometric analysis predicted the disappearance of UK publishing in anaesthesia by 2020. We repeated this analysis to assess if this had turned out to be the case, searching PubMed for papers associated with UK consultant anaesthetists for 2017-2019 across 15 journals. Although the rate of decline has flattened using the same search filter, including a wider range of publication types shows that outputs still remain at half 1990s levels (381 papers for all 3 years combined), authored by 769 anaesthetists, 274 of whom are associated with an academic centre. There are now 11 identifiable academic units, and a further 15 places where anaesthetists have affiliations with academic centres as individuals. The majority of papers (71%) are in secondary analysis (observational, database and association studies, surveys and meta-analyses), rather than in primary research (clinical trials or laboratory studies). These data reflect the current academic capacity in terms of publications, academic units and staffing. We discuss how this information can be used to inform a new strategy for UK academic anaesthesia.
    Keywords:  academic capacity; academic strategy; bibliometrics; h-index; publishing
  20. PLoS One. 2020 ;15(9): e0238360
    Ploszaj A, Yan X, Börner K.
      This paper analyzes the impact of air transport connectivity and accessibility on scientific collaboration. Numerous studies demonstrated that the likelihood of collaboration declines with increase in distance between potential collaborators. These works commonly use simple measures of physical distance rather than actual flight capacity and frequency. Our study addresses this limitation by focusing on the relationship between flight availability and the number of scientific co-publications. Furthermore, we distinguish two components of flight availability: (1) direct and indirect air connections between airports; and (2) distance to the nearest airport from cities and towns where authors of scientific articles have their professional affiliations. Based on Zero-inflated Negative Binomial Regression, we provide evidence that greater flight availability is associated with more frequent scientific collaboration. More flight connections (connectivity) and proximity of airport (accessibility) increase the expected number of coauthored scientific papers. Moreover, direct flights and flights with one transfer are more valuable for intensifying scientific cooperation than travels involving more connecting flights. Further, analysis of four organizational sub-datasets-Arizona State University, Indiana University Bloomington, Indiana University-Purdue University Indianapolis, and University of Michigan-shows that the relationship between airline transport availability and scientific collaboration is not uniform, but is associated with the research profile of an institution and the characteristics of the airport that serves this institution.
  21. Urology. 2020 Aug 31. pii: S0090-4295(20)31031-1. [Epub ahead of print]
    Rapp DE, Tuong M, Zillioux J, Patel N, Shah J, Ballantyne C.
      INTRODUCTION: Publication bias is a well-established phenomenon in scientific literature. Indirect evidence of publication bias can be assessed by observation of a disproportionately high percentage of positive studies within the published literature. We assessed rates of positive publications within the urologic literature, comparing the years 2012 and 2017.METHODS/MATERIALS: All studies published in Journal of Urology, Neurourology and Urodynamics, Urologic Oncology, Journal of Endourology, and Urology in 2012 and 2017 were reviewed. The primary study outcome was proportion of positive studies. Additional article characteristics, including associated citations and subspecialty focus, were recorded and statistical analyses used to assess for differences in negative publication rates based on these variables.
    RESULTS: A total of 1,796 articles meeting inclusion criteria were analyzed (2012, 959; 2017, 837). The overall proportion of positive studies decreased in comparison of 2012 and 2017. (90% to 86%, p=0.01). A statistically significant decrease was seen in two of five journals: Neurourology and Urodynamics (97% to 87%, p=0.01) and Journal of Endourology (93% to 83%, p<0.01). There were no significant differences in associated citations for positive versus negative studies in either year. Logistic regression focused on year and journal revealed that studies published in 2017 and Urology were more likely to be negative.
    CONCLUSIONS: The vast majority of studies within the urologic literature are positive, with only a small increase in negative study publication comparing 2012 versus 2017. Continued efforts are needed to identify publication bias and promote dissemination of negative research findings.
    Keywords:  literature; publication bias; urology
  22. Int J Health Care Qual Assur. 2020 Sep 08. ahead-of-print(ahead-of-print):
    Karamali M, Bahadori M, Ravangard R, Yaghoubi M.
      PURPOSE: Hospital accreditation has been adopted internationally as a way and solution for healthcare quality improvement in hospitals. The purpose of this study was to review and knowledge mapping of bibliographic data about "Hospital Accreditation" and assess the current quantitative trends.DESIGN/METHODOLOGY/APPROACH: Scientometric methods and knowledge visualization using the coword analysis techniques conducted in three steps based on the data related to the field of hospital accreditation from 1975 to 2018 obtained from the MEDLINE database. Bibliographic data for titles, abstracts and keywords articles were saved in CSV format and MEDLINE templates by applying filters. Data extracted were exported into an Excel spreadsheet and were preprocessed. The authors applied the text mining and visualization using VOSviewer software.
    FINDINGS: Hospital accreditation studies have been increased rapidly over the past 30 years. 6,661 documents in the field of hospital accreditation had been published from 1975 to 2018. Hospitals or organizations active in the field of hospital accreditation were in the United States, Italy and Canada. The 10 most productive authors identified in the area of hospital accreditation with a higher influence were identified. "The United States", "accreditation", "Joint commission on accreditation" and "quality assurance, healthcare" had, respectively, the highest frequency. The cluster analysis identified and categorized them into four major clusters. Hospital accreditation field had a close relationship with the quality improvement, patient safety, risk and standards.
    ORIGINALITY/VALUE: Hospital accreditation had focused on the scopes of implementation of accreditation programs, adherence to JCI standards, and focus on safety and quality improvement. Future studies are recommended to be conducted on design interventions and paying attention to all dimensions of hospital accreditation.
    Keywords:  Coword analysis; Hospital accreditation; Knowledge mapping; MEDLINE
  23. Dis Colon Rectum. 2020 Aug 22.
    van Loon YT, Jimenez-Rodriguez R, Keller DS, Ioannidis A, Zimmerman DDE, Christensen P, Möslein G.
      BACKGROUND: There is wide variation in gender distribution in colorectal surgery across different European countries.OBJECTIVE: To evaluate female representation, implicit bias and members' perception on female participation and representation at the European Society of ColoProctology 2017 annual scientific meeting.
    DESIGN: This was a retrospective mixed-methods cross-sectional observational study.
    SETTINGS: The study was conducted using data from the 2017 ESCP annual scientific meeting program and attendees.
    MAIN OUTCOME MEASURES: Primary outcome measure was the percentage of female speakers in the formal program and assessment for implicit bias. Secondary outcomes were the percentage of women attending the conference, serving on committees, and the results of the online survey.
    METHODS: Female representation was retrospectively quantified by role, session type, and topic. Implicit bias was measured classifying the introductions of speakers by moderators as formal (using a professional title) or informal (using name only), then further stratified by gender. An online survey was disseminated and analyzed to investigate the members' perception as a benchmark analysis.
    RESULTS: Disparities were found between sexes, with less women attending the conference (25%), serving as session chairs (8%), speakers (21%), and on committees (10%) compared to men. There were no differences across sexes regarding the formal or informal introduction. Survey amongst our members showed significantly fewer women felt equally endorsed within the society compared to men (33% versus 63%, respectively, p<0.001).
    LIMITATIONS: Retrospective design with data available to be analyzed limited by sessions recorded (27/49) and survey respondents (28%).
    CONCLUSIONS: Female representation within European Society of ColoProctology as chair, speaker, attendee and committee member was much lower than male representation- both in absolute numbers and relative to membership. Greater awareness of this disparity and inclusiveness are aims of our society. The impact of these initiatives will be determined by reevaluating these metrics at the 2020 annual meeting.
  24. Curr Neuropharmacol. 2020 Sep 05.
    Xu D, Wang YL, Wang KT, Wang Y, Dong XR, Tang J, Cui YL.
      Multiple studies on the pathomechanisms of depressive disorder and antidepressants have been reported. However, literature involving scientometric analysis of depressive disorder is sparse. Here, we use scientometric analysis and a historical review to highlight recent research on depression. We use the former to examine research on depressive disorders from 1998 to 2018. The latter is used to identify the most frequent keywords in keyword analysis, as well as explore hotspots and depression trends. Scientometric analysis uncovered field distribution, knowledge structure, research topic evolution, and topics emergence as main explorations in depressive disorder. Induction factor, comorbidity, pathogenesis, therapy and animal models of depression help illustrate occurrence, development and treatment of depressive disorder. Scientometric analysis found 231,270 research papers on depression, a 4-fold increase over the last 20 years. These findings offer a vigorous roadmap for further studies in this field.
    Keywords:  CiteSpace; Scientometrics analysis; VOSviewer; Visualization; depressive disorder
  25. Med J Islam Repub Iran. 2020 ;34 42
    Mojahedian MM, Mohammadi A, Abdollahi M, Kebriaeezadeh A, Sharifzadeh M, Asadzandi S, Nikfar S.
      Background: Increasing the number of students in universities, simultaneously limiting allocation of funds to them, and maintaining the highest efficiency level in education and research are of paramount importance. There are several methods to assess the efficiency of universities, and one of the most widely used of which is data envelopment analysis (DEA). The aim of this study was to determine the input and output criteria to evaluate the efficiency of universities of medical sciences through review-related articles using the DEA method. Methods: The time limit for retrieving articles was considered from the beginning of the publication of the first paper in this field until the end of 2017. The data were retrieved from Web of Science, Scopus, Ovid, ProQuest, Science Direct, and PubMed using advanced searches. Inclusion criteria were as follow: relevancy of the articles to the purpose of the research, availability of the articles' full-text, articles published to the end of 2017, and articles published in English. Results: The most inputs used in the literature to determine university efficiency were number of academic staffs, budget and costs, number of students, number of nonacademic staffs, spaces, and equipment and student's entrance scores. Also, the most outputs used in the literature to determine university efficiency were number of graduates, publications, incomes, number of students, and student's scores. Conclusion: This study showed that a large number of researchers have focused on measuring and comparing the efficiency of universities to improve efficiency, reduce costs, and manage the resources. Efficiency analysis by DEA allows the policymakers to define and develop policies and guidelines to improve their performances.
    Keywords:  Data envelopment analysis; Education; Efficiency; Inputs; Outputs
  26. Implement Sci Commun. 2020 ;1 20
    Boland L, Brosseau L, Caspar S, Graham ID, Hutchinson AM, Kothari A, McNamara K, McInnes E, Angel M, Stacey D.
      Background: Increasingly, health researchers must demonstrate the impact and real-life applications of their research. We investigated how health researchers with expertise in knowledge translation report research translation activities and impact on their curriculum vitae (CV).Methods: We conducted a cross-sectional survey of health researchers with expertise in knowledge translation as we anticipated best practices in CV reporting from this specialized group. Our survey asked participants about their reporting of research translation and impact activities on their CVs, intention to report, and barriers and facilitators to reporting such activities on their CVs. We calculated univariate descriptive statistics for all quantitative data. Linear regression models determined predictors of researchers' intention to report research translation and impact activities on their CVs. We analyzed open-ended qualitative responses using content analysis.
    Results: One hundred and fifty-three health researchers responded to the survey (response rate = 29%). Most respondents were Canadian, were female, and had a doctoral degree. Eighty-two percent indicated they reported at least one research translation and/or impact indicator on their CVs. Of those, health researchers commonly reported the following: advisory/regulatory committee membership related to research program (83%), research translation award(s) (61%), and academic performance assessments (59%). Researchers least commonly indicated the following: citation metric scores (31%), summaries of impact (21%), and requests to use research materials and/or products (19%). Fewer than half of the health researchers intended to report knowledge translation (43%) and impact (33%) on their CVs. Strong beliefs about capabilities and consequences of reporting research translation and/or impact were significant predictors of intention. Main barriers were as follows: CV templates do not include research translation and impact activities, participants perceived employers do not value research translation and impact activities, and lack of metrics to evaluate research translation and impact. Ninety-six percent were unaware of a CV template formatted to include research translation and/or impact reporting.
    Conclusions: Knowledge translation and impact indicators on the CV are inconsistently reported by our sample of health researchers. Modifiable barriers should be addressed to support more consistent reporting of such activities, including providing a CV template that includes research translation and impact as well as clear metrics to quantify them.
    Keywords:  Curriculum vitae; Health researchers; Impact; Reporting; Research activities; Research translation
  27. Ann Plast Surg. 2020 Aug 31.
    McGlone KL, Ngaage LM, Steinberg JP, Lifchez SD, Slezak S, Rasko YM.
      INTRODUCTION: Plastic surgery subspecialty fellowships are highly competitive. Academic productivity is an objective metric that can be used to compare candidates. This study aims to evaluate intersubspecialty differences in academic profiles of plastic surgery fellows.METHODS: We performed a cross-sectional analysis of the plastic surgery fellows in the United States from 2015 to 2019. We used the San Francisco Match website and individual program websites to obtain details of fellowship programs (microsurgery, aesthetic, hand, and craniofacial) and plastic surgery fellows. Bibliometric data at the time of fellowship application were obtained for each fellow.
    RESULTS: A total of 235 fellows were included. There was a significant difference in the median number of publications (P = 0.0067) and h-index (P = 0.0229) across subspecialties. Multivariate analysis demonstrated that dedicated research time was predictive for a high publication count (odds ratio [OR], 3.59; P = 0.0007) and h-index (OR, 4.88; P < 0.0001) at the time of fellowship application. Although international residency and aesthetic fellowship application were predictive of a reduced number of publications (OR, 0.17; P < 0.0001, and OR, 0.43; P = 0.0190, respectively), H-index was increased by possession of an advanced degree (OR, 2.00; P = 0.0291) and decreased with international residency (OR, 0.26, P = 0.0021).
    CONCLUSIONS: All plastic surgery fellows have highly qualified academic profiles at the time of fellowship application. Academic productivity differs between subspecialty fellowships. Those wishing to match into competitive subspecialties should consider taking dedicated time for research or attaining an advanced degree.