scholarly journals Assessment of the NIH-supported relative citation ratio as a measure of research productivity among 1687 academic neurological surgeons

2020 ◽  
pp. 1-8
Author(s):  
Vamsi Reddy ◽  
Arjun Gupta ◽  
Michael D. White ◽  
Raghav Gupta ◽  
Prateek Agarwal ◽  
...  

OBJECTIVEPublication metrics such as the Hirsch index (h-index) are often used to evaluate and compare research productivity in academia. The h-index is not a field-normalized statistic and can therefore be dependent on overall rates of publication and citation within specific fields. Thus, a metric that adjusts for this while measuring individual contributions would be preferable. The National Institutes of Health (NIH) has developed a new, field-normalized, article-level metric called the “relative citation ratio” (RCR) that can be used to more accurately compare author productivity between fields. The mean RCR is calculated as the total number of citations per year of a publication divided by the average field-specific citations per year, whereas the weighted RCR is the sum of all article-level RCR scores over an author’s career. The present study was performed to determine how various factors, such as academic rank, career duration, a Doctor of Philosophy (PhD) degree, and sex, impact the RCR to analyze research productivity among academic neurosurgeons.METHODSA retrospective data analysis was performed using the iCite database. All physician faculty affiliated with Accreditation Council for Graduate Medical Education (ACGME)–accredited neurological surgery programs were eligible for analysis. Sex, career duration, academic rank, additional degrees, total publications, mean RCR, and weighted RCR were collected for each individual. Mean RCR and weighted RCR were compared between variables to assess patterns of analysis by using SAS software version 9.4.RESULTSA total of 1687 neurosurgery faculty members from 125 institutions were included in the analysis. Advanced academic rank, longer career duration, and PhD acquisition were all associated with increased mean and weighted RCRs. Male sex was associated with having an increased weighted RCR but not an increased mean RCR score. Overall, neurological surgeons were highly productive, with a median RCR of 1.37 (IQR 0.93–1.97) and a median weighted RCR of 28.56 (IQR 7.99–85.65).CONCLUSIONSThe RCR and its derivatives are new metrics that help fill in the gaps of other indices for research output. Here, the authors found that advanced academic rank, longer career duration, and PhD acquisition were all associated with increased mean and weighted RCRs. Male sex was associated with having an increased weighted, but not mean, RCR score, most likely because of historically unequal opportunities for women within the field. Furthermore, the data showed that current academic neurosurgeons are exceptionally productive compared to both physicians in other specialties and the general scientific community.

2017 ◽  
Vol 37 (5) ◽  
pp. 337
Author(s):  
Sunaina Khanna ◽  
Neeraj Kumar Singh ◽  
Deepika Tewari ◽  
Harinder Singh Saini

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The study attempts to analyse research contributions of the Guru Nanak Dev University, Amritsar in physics and astronomy during the period 2006-15. The data for this study was extracted from Scopus. The study analyses the </span><span>year-wise research productivity, national and international collaborations, top collaborating institutions, most prolific </span><span>authors, journals used for communication, most preferred journals for publication, number of citations received by the University during the period under study. This paper analyses that the university has published 652 papers in physics and astronomy. The University had registered the average citation impact per paper of 7.01 per cent and 6 publications received 51 to 100 citations. Among the Indian universities, University stood at 23</span><span>rd </span><span>rank in term of publications output (652) and h-index (29), 16</span><span>th </span><span>rank in average citation per paper (7.01 per cent) and 18</span><span>th </span><span>rank in share of high cited papers (1 per cent) and 19</span><span>th </span><span>rank in terms of international collaborative papers (27.45 per cent) during 2006-15. Around 68.71 per cent publications of the University in physics and astronomy were in national collaboration between GNDU and several other Indian organisations. The study clearly indicates that journals are the most preferred form of publication to communicate research works by the researchers. </span></p></div></div></div>


2015 ◽  
Vol 34 (10) ◽  
pp. 1006-1016 ◽  
Author(s):  
SH Zyoud ◽  
SW Al-Jabi ◽  
WM Sweileh ◽  
R Awang ◽  
WS Waring

Purpose: The main objective of this study was to examine the publication pattern of N-acetylcysteine (NAC) research output for paracetamol overdose at the global level. Methods: Data were searched for documents that contained specific words regarding NAC and paracetamol as keywords in the title and/or abstract and/or keywords. Scientific output was evaluated based on a methodology developed and used in other bibliometric studies. Research productivity was adjusted to the national population and nominal gross domestic product per capita. Results: The criteria were met by 367 publications from 33 countries. The highest number of articles associated with the use of NAC in paracetamol overdose was from the United States of America (USA; 39.78%), followed by the United Kingdom (UK; 11.99%). After adjusting for economy and population power, USA (2.822), Iran (1.784) and UK (1.125) had the highest research productivity. The total number of citations at the time of data analysis (14 March 2014) was 8785 with an average of 23.9 citations per document and a median (interquartile range) of 6 (1–22). The h-index of the retrieved documents was 48. The highest h-index was 32 for USA, followed by 20 for UK. Furthermore, the highest number of collaborations with international authors for each country was held by USA with 11 countries, followed by Canada with 7 countries. Conclusion: The amount of NAC-based research activity was low in some countries, and more effort is needed to bridge this gap and to promote better evaluation of NAC use worldwide. Our findings demonstrate that NAC use for paracetamol overdose remains a hot issue in scientific research and may have a larger audience compared with other toxicological aspects. Editors and authors in the field of toxicology might usefully promote the submission of work on NAC in future to improve their journal’s impact.


2017 ◽  
Vol 37 (5) ◽  
pp. 337
Author(s):  
Sunaina Khanna ◽  
Neeraj Kumar Singh ◽  
Deepika Tewari ◽  
Harinder Singh Saini

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The study attempts to analyse research contributions of the Guru Nanak Dev University, Amritsar in physics and astronomy during the period 2006-15. The data for this study was extracted from Scopus. The study analyses the </span><span>year-wise research productivity, national and international collaborations, top collaborating institutions, most prolific </span><span>authors, journals used for communication, most preferred journals for publication, number of citations received by the University during the period under study. This paper analyses that the university has published 652 papers in physics and astronomy. The University had registered the average citation impact per paper of 7.01 per cent and 6 publications received 51 to 100 citations. Among the Indian universities, University stood at 23</span><span>rd </span><span>rank in term of publications output (652) and h-index (29), 16</span><span>th </span><span>rank in average citation per paper (7.01 per cent) and 18</span><span>th </span><span>rank in share of high cited papers (1 per cent) and 19</span><span>th </span><span>rank in terms of international collaborative papers (27.45 per cent) during 2006-15. Around 68.71 per cent publications of the University in physics and astronomy were in national collaboration between GNDU and several other Indian organisations. The study clearly indicates that journals are the most preferred form of publication to communicate research works by the researchers. </span></p></div></div></div>


2019 ◽  
Author(s):  
Lukasz Pawel Kozlowski

ABSTRACTHere, I present the fCite web service (fcite.org) a tool for the in-depth analysis of an individual’s scientific research output. While multiple existing tools (e.g., Google Scholar, iCite, Microsoft Academic) focus on the total number of citations and the H-index, I propose the analysis of the research output by considering multiple metrics to provide greater insight into a scientist’s multifaceted profile. The most distinguishing feature of fCite is its ability to calculate fractional scores for most of the metrics currently in use. Thanks to the division of citations (and RCR scores) by the number of authors, the tool provides a more detailed analysis of a scholar’s portfolio. fCite is based on PUBMED data (~18 million publications), and the statistics are calculated with respect to ORCID data (~600,000 user profiles).


2020 ◽  
Vol 40 (03) ◽  
pp. 185-191
Author(s):  
Santha kumar R ◽  
Kaliyaperumal K ◽  
Louies S

The Madras University is one of the oldest universities in India which produced many scholars, philosophers, scientists, philanthropists and so on. It has a unique position among the Indian universities in terms of academic and research pursuits. In this context, this paper made an attempt to illustrate the research productivity of the university for a period of ten years from 2009 to 2018. A total of 3283 publications of the university are downloaded from Web of Science database. The results show that the productivity has fluctuating trend in the pattern of publication growth. The overall average for references for each article was 10.89 and h-index of the university is 65 during the study period. The major findings of the study report that the university produces more number of papers in the field of chemistry and the researchers preferred to publish their research output in UK journals.


2021 ◽  
pp. 194589242110547
Author(s):  
David C. Moffatt ◽  
Andrew M. Ferry ◽  
Jared M. Stuart ◽  
Jesse D. Supernaw ◽  
Alex E. Wright ◽  
...  

Background Scholarly productivity and research output vary among different subspecialties. The h-index was developed as a more wholesome metric that measures an author's contribution to literature. Objective Through a web-based cross-sectional analysis, we investigated the differences in scholarly impact and influence of both fellowship and nonfellowship-trained academic otolaryngologists in the United States. A secondary objective was to further understand the output among the larger fellowship fields. Methods A cross-sectional analysis was performed for active faculty otolaryngologists. A total of 1704 otolaryngologists were identified as faculty in residency training programs across the United States. Their h-index and publication data were gathered using the Scopus database. The data were obtained in August 2019 and analysis occurred in January 2020. Results Head and neck surgical faculty (25.5%) had the highest representation with fellowship experience. Among all faculty, there was no statistical difference in the overall average h-index scores when comparing faculty that had fellowship training with those who did not (12.6 and 12.1, respectively, P = .498). Rhinologists had the highest publication output per year at 3.90. Among fellowship-trained faculty, the highest average h-index and total publications were seen in head & neck surgery, while facial plastics had the lowest averages ( P < .001). Conclusions In this study, fellowship-trained faculty had a greater but not significant scholarly impact than nonfellowship faculty. Furthermore, there were significant variations in output among the various subspecialties of otolaryngology. Growing fields, as academic rhinology, are continuing to flourish in robust research productivity and output. This study further demonstrates the potential, growing influence of fellowship training on research involvement and academic advancement within the otolaryngology subspecialties.


2019 ◽  
Vol 64 (6) ◽  
pp. 415-422 ◽  
Author(s):  
Sarah Chauvin ◽  
Benoit H. Mulsant ◽  
Sanjeev Sockalingam ◽  
Vicky Stergiopoulos ◽  
Valerie H. Taylor ◽  
...  

Objectives: Gender inequity in academic medicine persists despite increases in the number of women physicians. We sought to explore gender differences in research productivity for academic psychiatrists in Canada. Methods: In a cross-sectional study of the 3379 psychiatrists in all 17 university departments of psychiatry in Canada, research productivity, as measured by the h-index and number of publications, was compared between women and men using a negative log binomial regression model to generate relative rates (RRs), adjusted for career duration (aRR). Findings were stratified by academic rank, institution region, and institution size. A subanalysis of those with 10 or more publications was conducted as a proxy for identifying physicians on a research track. Results: Women (43% of the sample) had a lower mean (standard deviation) h-index than men (2.87 [6.49] vs. 5.31 [11.1]; aRR, 0.62; 95% confidence interval [CI], 0.54 to 0.72). Differences were significant only for junior faculty and not for associate and full professors. Comparison by number of publications followed a similar pattern (aRR, 0.46; 95% CI, 0.39 to 0.55). Among those with 10 or more publications ( n = 721), differences between men and women were smaller than in the overall cohort for both the h-index (aRR, 0.77; 95% CI, 0.68 to 0.87) and number of publications (aRR, 0.62; 95% CI, 0.53 to 0.72). Conclusions: Gender differences in research productivity at the national level in academic psychiatry in Canada support a call to adopt a more systematic approach to promoting equitable opportunities for women in research, especially in early career, to improve diversity and enhance future psychiatric research and discovery.


2018 ◽  
Vol 26 (1) ◽  
pp. 5-10 ◽  
Author(s):  
Jiayi Hu ◽  
Arian Gholami ◽  
Nicholas Stone ◽  
Justyna Bartoszko ◽  
Achilleas Thoma

Background: Evaluation of research productivity among plastic surgeons can be complex. The Hirsch index (h-index) was recently introduced to evaluate both the quality and quantity of one’s research activity. It has been proposed to be valuable in assessing promotions and grant funding within academic medicine, including plastic surgery. Our objective is to evaluate research productivity among Canadian academic plastic surgeons using the h-index. Methods: A list of Canadian academic plastic surgeons was obtained from websites of academic training programs. The h-index was retrieved using the Scopus database. Relevant demographic and academic factors were collected and their effects on the h-index were analyzed using the t test and Wilcoxon Mann-Whitney U test. Nominal and categorical variables were analyzed using χ2 test and 1-way analysis of variance. Univariate and multivariate models were built a priori. All P values were 2 sided, and P < .05 was considered to be significant. Results: Our study on Canadian plastic surgeons involved 175 surgeons with an average h-index of 7.6. Over 80% of the surgeons were male. Both univariable and multivariable analysis showed that graduate degree ( P < .0001), academic rank ( P = .03), and years in practice ( P < .0001) were positively correlated with h-index. Limitations of the study include that the Scopus database and the websites of training programs were not always up-to-date. Conclusion: The h-index is a novel tool for evaluating research productivity in academic medicine, and this study shows that the h-index can also serve as a useful metric for measuring research productivity in the Canadian plastic surgery community. Plastic surgeons would be wise to familiarize themselves with the h-index concept and should consider using it as an adjunct to existing metrics such as total publication number.


2021 ◽  
Author(s):  
Qingxi Zhang ◽  
Hui Li ◽  
Dan Xing ◽  
Jianhao Lin

ABSTRACT Objectives The global trend of research on hyperuricaemia (HUA) has not been well studied. Therefore, this study aimed to investigate the trend of research on HUA and compare the findings in publications from different countries, institutions, journals, and authors, to predict the research hotspots. Methods Publications related to HUA were searched using the Science Citation Index-Expanded Web of Science. The data were analysed by using the bibliometric methodology. Additionally, a graphical mapping was generated by using the VOS viewer software to carry out a co-occurrence analysis and to investigate the trend of publications in this field. Results A total of 6313 articles were included. The number of publications was increasing globally yearly. USA was the leading country in global research in this field, with the largest number of publications and citations as well as the highest H-index (H-index reflects both the number of publications and the number of citations per publication). PLOS One published the largest number of publications related to HUA. JOHNSON RJ T has published the largest number of papers in this field. Published studies could be classified into six clusters: ‘Pathophysiology’, ‘HUA and metabolic syndrome’, ‘HUA and cardiovascular disease’, ‘HUA and gout’, ‘HUA and nephropathy’, and ‘Genome-wide research’. ‘Pathophysiology’, ‘HUA and cardiovascular disease’, ‘HUA and gout’, and ‘Genome-wide research’ were predicted as the next hot topics in HUA research. Conclusions USA was the leading country in global research in this field. It is expected that an increasing research output will continue to be observed in the near future. ‘Pathophysiology’, ‘HUA and cardiovascular disease’, ‘HUA and gout’, and ‘Genome-wide research’ may be the next hotspots and hence need more attention in the future.


2021 ◽  
Vol 64 (1) ◽  
pp. E76-E83
Author(s):  
Henry Wang ◽  
Michael W.A. Chu ◽  
Luc Dubois

Background: Academic productivity, as measured by number and impact of publications, is central to the career advancement and promotion of academic surgeons. We compared research productivity metrics among specialties and sought factors associated with increased productivity. Methods: Academic surgeons were identified through departmental webpages and their scholarly metrics were collected through Scopus in a standardized fashion. We collected total number of documents, h-index, and average number of publications per year in the preceding 5 years. We explored whether presence of a training program, graduate degree, academic rank and size of the clinical group affected productivity metrics. Linear regression was used for multivariable analysis. Results: We collected data on 2172 surgeons from 15 separate academic centres across Canada. Wide variability existed in metrics among specialties, with cardiac and neurosurgery being the most productive, and vascular surgery and plastic surgery being the least productive. The average number of publications was 71, and the average h-index was 18.7. The average h-index for cardiac surgery was 25.7 compared with 8.3 for vascular surgery (p < 0.001). Our multivariable model identified academic rank, surgical specialty, graduate degree, presence of a training program, and larger clinical group as being associated with increased academic productivity. Conclusion: There is variability in research productivity among Canadian surgical specialties. Cardiac surgery and neurosurgery are productive, whereas vascular surgery and plastic surgery are less productive than other surgical disciplines. Obtaining a research-oriented graduate degree, being part of a larger clinical group, and presence of a training program were all associated with higher productivity, even after adjusting for academic rank and specialty.


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