Abstract
The existence of gender disparities in academia is well documented. Many explanations have been proposed and productivity is one of the most used variables to explain a possible correlation between gender and differences in academic rank or leadership positions. The literature on the existence of a productivity gender gap is inconclusive which may due to the variety of study designs. This article presents the results of a longitudinal bibliometric study of health science researchers controlling for sub-disciplinary affiliation, education, year of enrollment and age. The productivity and impact of the researchers are analyzed during a 16-year period. We find no or little difference in productivity or impact among the group of health sciences researchers from the time of enrollment in the Ph.D. program and 10 years beyond, and women outperform men in some cases. There are negligible differences in productivity and impact prior to enrollment. The implications of the findings are discussed.
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Astegiano, J., Sebastián-González, E., & Castanho, C. D. T. (2019). Unravelling the gender productivity gap in science: A meta-analytical review. Royal Society Open Science. https://doi.org/10.1098/rsos.181566.
Baker, S. R., Barry, M., Chaudhry, H., & Hubbi, B. (2006). Women as radiologists: are there barriers to entry and advancement? Journal of the American College of Radiology,3(2), 131–134.
Blumenthal, K. G., Huebner, E. M., Banerji, A., Long, A. A., Gross, N., Kapoor, N., et al. (2019). Sex differences in academic rank in allergy/immunology. Journal of Allergy and Clinical Immunology,144(6), 1697–1702.e1691. https://doi.org/10.1016/j.jaci.2019.06.026.
Britton, D. M. (2017). Beyond chilly climate: the salience of gender in women’s academic careers. Gender & Society,31(1), 5–27.
Broderick, N. A., & Casadevall, A. (2019). Meta-Research: Gender inequalities among authors who contributed equally. Elife,8, e36399.
Chauvin, S., Mulsant, B. H., Sockalingam, S., Stergiopoulos, V., Taylor, V. H., & Vigod, S. N. (2019). Gender differences in research productivity among academic psychiatrists in Canada. Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie,64(6), 415–422. https://doi.org/10.1177/0706743718802798.
Chinchilla-Rodríguez, Z., Sugimoto, C. R., & Larivière, V. (2019). Follow the leader: On the relationship between leadership and scholarly impact in international collaborations. PLoS ONE,14(6), e0218309.
Conti, A., & Visentin, F. (2015). Science and engineering Ph.D. students’ career outcomes, by gender. PloS ONE. https://doi.org/10.1371/journal.pone.0133177.
Desai, N., Veras, L. V., & Gosain, A. (2018). Using bibliometrics to analyze the state of academic productivity in US pediatric surgery training programs. Journal of Pediatric Surgery,53(6), 1098–1104. https://doi.org/10.1016/j.jpedsurg.2018.02.063.
Duch, J., Zeng, X. H. T., Sales-Pardo, M., Radicchi, F., Otis, S., Woodruff, T. K., et al. (2012). The possible role of resource requirements and academic career-choice risk on gender differences in publication rate and impact. PLoS ONE,7(12), 11. https://doi.org/10.1371/journal.pone.0051332.
Edmunds, L. D., Ovseiko, P. V., Shepperd, S., Greenhalgh, T., Frith, P., Roberts, N. W., et al. (2016). Why do women choose or reject careers in academic medicine? A narrative review of empirical evidence. The Lancet,388(10062), 2948–2958.
Ellwood, S., Garcia-Lacalle, J., & Royo, S. (2020). The shattered glass ceiling and a narrowing gender pay gap in NHS foundation trusts: Gender and salaries of chief executives. Public Money & Management,40(1), 31–41.
Frandsen, T.F., Jacobsen, R.H., Nicolaisen, J. & Ousager, J. (2019). Pressure to publish: a bibliometric study of Ph.D. students (1993–2009). In Proceedings of CoLIS, the tenth international conference on conceptions of library and information science, Ljubljana, Slovenia, June 16–19, 2019. Information Research, 24(4), paper colis1925. Retrieved from http://InformationR.net/ir/24-4/colis/colis1925.html.
Frandsen, T. F., Jacobsen, R. H., Wallin, J. A., Brixen, K., & Ousager, J. (2015). Gender differences in scientific performance: A bibliometric matching analysis of Danish health sciences Graduates. Journal of Informetrics,9(4), 1007–1017.
Garstka, M. E., Randolph, G. W., Haddad, A. B., Nathan, C. A. O., Ibraheem, K., Farag, M., & Killackey, M. T. (2019). Gender disparities are present in academic rank and leadership positions despite overall equivalence in research productivity indices among senior members of American Head and Neck Society (AHNS) Fellowship Faculty. Head & neck.
Gayet-Ageron, A., Poncet, A., & Perneger, T. (2019). Comparison of the contributions of female and male authors to medical research in 2000 and 2015: A cross-sectional study. British Medical Journal Open,9(2), e024436.
Geltzeiler, C. B., Kelley, K. A., Srikanth, P., Deveney, K. E., Diamond, S., Thomas, C. R., et al. (2017). Does sex influence publication productivity among colorectal surgeons participating in fellowship training programs? Diseases of the Colon and Rectum,60(5), 537–543. https://doi.org/10.1097/DCR.0000000000000746.
Geraci, L., Balsis, S., & Busch, A. J. B. (2015). Gender and the h index in psychology. Scientometrics,105(3), 2023–2034. https://doi.org/10.1007/s11192-015-1757-5.
Halevi, G. (2019). Bibliometric studies on gender disparities in science (pp. 563–580). Berlin: Springer.
Hangel, N., & Schmidt-Pfister, D. (2017). Why do you publish? On the tensions between generating scientific knowledge and publication pressure. Aslib Journal of Information Management,69(5), 529–544.
Hart, K. L., Frangou, S., & Perlis, R. H. (2019). Gender trends in authorship in psychiatry journals from 2008 to 2018. Biological Psychiatry,86(8), 639–646. https://doi.org/10.1016/j.biopsych.2019.02.010.
Holliday, E. B., Jagsi, R., Wilson, L. D., Choi, M., Thomas, C. R., Jr., & Fuller, C. D. (2014). Gender differences in publication productivity, academic position, career duration and funding among US academic radiation oncology faculty. Academic Medicine: Journal of The Association of American Medical Colleges,89(5), 767.
Holman, L., Stuart-Fox, D., & Hauser, C. E. (2018). The gender gap in science: How long until women are equally represented? PLoS Biology,16(4), e2004956.
Jappelli, T., Nappi, C. A., & Torrini, R. (2017). Gender effects in research evaluation. Research Policy,46(5), 911–924.
Karri, J., Navarro, S. M., Duong, A., Tang, T., & Abd-Elsayed, A. (2020). Exploration of Gender-Specific Authorship Disparities in the Pain Medicine Literature. Regional Anesthesia and Pain Medicine,45(1), 67–72. https://doi.org/10.1136/rapm-2019-100806.
Kolesnikov, S., Fukumoto, E., & Bozeman, B. (2018). Researchers’ risk-smoothing publication strategies: Is productivity the enemy of impact? Scientometrics,116(3), 1995–2017.
Laver, K. E., Prichard, I. J., Cations, M., Osenk, I., Govin, K., & Coveney, J. D. (2018). A systematic review of interventions to support the careers of women in academic medicine and other disciplines. British Medical Journal Open,8(3), e020380.
Lei, S. Y., Dong, Y. P., Zhu, W. F., & Li, L. J. (2016). An emerging trend of equal authorship credit in major public health journals. SpringerPlus. https://doi.org/10.1186/s40064-016-2771-7.
Lin, M. P., Lall, M. D., Samuels-Kalow, M., Das, D., Linden, J. A., Perman, S., et al. (2019). Impact of a women-focused professional organization on academic retention and advancement: Perceptions from a qualitative study. Academic Emergency Medicine,26(3), 303–316.
Loan, F. A., & Hussain, M. (2017). Gender Variations in Research Productivity: Insights from Scholarly Research. Library Philosophy and Practice, 2017, 1–12.
Lörz, M., & Mühleck, K. (2019). Gender differences in higher education from a life course perspective: transitions and social inequality between enrollment and first post-doc position. Higher Education,77(3), 381–402. https://doi.org/10.1007/s10734-018-0273-y.
Mairesse, J., & Pezzoni, M. (2015). Does gender affect scientific productivity? Revue économique,66(1), 65–113.
Mairesse, J., Pezzoni, M., & Visentin, F. (2019). Impact of family characteristics on the gender publication gap: evidence for physicists in France. Interdisciplinary Science Reviews,44(2), 204–220. https://doi.org/10.1080/03080188.2019.1603884.
Marušić, A., Bošnjak, L., & Jerončić, A. (2011). A systematic review of research on the meaning, ethics and practices of authorship across scholarly disciplines. PLoS ONE,6(9), e23477.
Mayer, S. J., & Rathmann, J. M. (2018). How does research productivity relate to gender? Analyzing gender differences for multiple publication dimensions. Scientometrics,117(3), 1663–1693.
McCabe, K. O., Lubinski, D., & Benbow, C. P. (2019). Who shines most among the brightest?: A 25-year longitudinal study of elite STEM graduate students. Journal of Personality and Social Psychology. https://doi.org/10.1037/pspp0000239.
McDermott, M., Gelb, D. J., Wilson, K., Pawloski, M., Burke, J. F., Shelgikar, A. V., et al. (2018). Sex differences in academic rank and publication rate at top-ranked US neurology programs. JAMA Neurol,75(8), 956–961. https://doi.org/10.1001/jamaneurol.2018.0275.
Nygaard, L. P., & Bahgat, K. (2018). What’s in a number? How (and why) measuring research productivity in different ways changes the gender gap. Journal of English for Academic Purposes,32, 67–79.
Qamar, S. R., Khurshid, K., Jalal, S., McInnes, M. D. F., Probyn, L., Finlay, K., et al. (2020). Gender disparity among leaders of Canadian academic radiology departments. American Journal of Roentgenology,214(1), 3–9. https://doi.org/10.2214/AJR.18.20992.
Sabatier, M., Carrere, M., & Mangematin, V. (2006). Profiles of academic activities and careers: does gender matter? An analysis based on French life scientist CV. Journal of Technology Transfer,31(3), 311–324.
Santos, G., & Van Phu, S. D. (2019). Gender and academic rank in the UK. Sustainability (Switzerland). https://doi.org/10.3390/su11113171.
Sewell, L., & Barnett, A. G. (2019). The impact of caring for children on women’s research output: A retrospective cohort study. PloS ONE. https://doi.org/10.1371/journal.pone.0214047.
Sheikh, M. H., Chaudhary, A. M. D., Khan, A. S., Tahir, M. A., Yahya, H. A., Naveed, S., et al. (2018). Influences for gender disparity in academic psychiatry in the United States. Cureus, 10(4), e2514. https://doi.org/10.7759/cureus.2514.
Simon, L., Candamo, F., He, P., Karhade, D. S., Pirooz, Y., Spinella, M. K., et al. (2019). Gender differences in academic productivity and advancement among dental school faculty. Journal of Women’s Health,28(10), 1350–1354.
Tartari, V., & Salter, A. (2015). The engagement gap: Exploring gender differences in University-Industry collaboration activities. Research Policy,44(6), 1176–1191.
Thelwall, M. (2018). Do females create higher impact research? Scopus citations and Mendeley readers for articles from five countries. Journal of Informetrics,12(4), 1031–1041.
Thelwall, M. (2019). Female citation impact superiority 1996–2018 in six out of seven english-speaking NATIONS. Journal of the Association for Information Science and Technology. https://doi.org/10.1002/asi.24316.
Thelwall, M., & Nevill, T. (2019). No evidence of citation bias as a determinant of STEM gender disparities in US biochemistry, genetics and molecular biology research. Scientometrics,121(3), 1793–1801.
Van Arensbergen, P., Van der Weijden, I., & Van den Besselaar, P. (2012). Gender differences in scientific productivity, a persisting phenomenon? Scientometrics,93, 857–868.
van den Besselaar, P., & Sandström, U. (2016). Gender differences in research performance and its impact on careers: a longitudinal case study. Scientometrics,106(1), 143–162. https://doi.org/10.1007/s11192-015-1775-3.
van den Brink, M., & Benschop, Y. (2011). Gender practices in the construction of academic excellence: sheep with five legs. Organization,19(4), 507–524.
Van Miegroet, H., Glass, C., Callister, R. R., & Sullivan, K. (2019). Unclogging the pipeline: Advancement to full professor in academic STEM. Equality, Diversity and Inclusion: An International Journal,38(2), 246–264.
Vanderbroeck, P., & Wasserfallen, J. B. (2017). Managing gender diversity in healthcare: getting it right. Leadership in Health Services,30(1), 92–100.
Chang, W. Y. White, K. E., & Sugimoto, C. R. (2019). Demographic differences in the publication output of U.S. Doctorate recipients. In proceedings of 17th International Conference on Scientometrics and Informetrics, ISSI 2019, edited by G. Catalano, C. Daraio, M. Gregori, H. F. Moed and G. Ruocco, 2430–39. International Society for Scientometrics and Informetrics.
Waaijer, C. J., Teelken, C., Wouters, P. F., & van der Weijden, I. C. (2018). Competition in science: links between publication pressure, grant pressure and the academic job market. Higher Education Policy,31(2), 225–243.
Webber, K. L., & Canché, M. G. (2018). Is there a gendered path to tenure? A multi-state approach to examine the academic trajectories of US doctoral recipients in the sciences. Research in Higher Education,59(7), 897–932.
Wildgaard, L., & Wildgaard, K. (2018). Continued publications by health science PhDs, 5 years post PhD-Defence. Research Evaluation,27(4), 347–357.
Williamson, I. O., & Cable, D. M. (2003). Predicting early career research productivity: The case of management faculty. Journal of Organizational Behavior: The International Journal of Industrial, Occupational and Organizational Psychology and Behavior,24(1), 25–44.
Witteman, H. O., Hendricks, M., Straus, S., & Tannenbaum, C. (2019). Are gender gaps due to evaluations of the applicant or the science? A natural experiment at a national funding agency. The Lancet,393(10171), 531–540.
Yang, H. Y., Rhee, G., Xuan, L., Silver, J. K., Jalal, S., & Khosa, F. (2019). Analysis of H-index in assessing gender differences in academic rank and leadership in physical medicine and rehabilitation in the United States and Canada. American journal of physical medicine & rehabilitation,98(6), 479–483.
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Appendix: Data tables for Figs. 1, 2, and 3
Appendix: Data tables for Figs. 1, 2, and 3
This appendix contains five tables containing the data points in the figures and the T-tests carried out to examine whether any gender differences were statistically significant.
Data points and T-tests for total number of publications
Year | Men | Women | T-test | P-value | ||
---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
− 5 | 0.011 | 0.057 | 0.005 | 0.032 | 0.809 | 0.420 |
− 4 | 0.032 | 0.135 | 0.000 | 0.000 | 2.042 | 0.043** |
− 3 | 0.025 | 0.097 | 0.004 | 0.022 | 1.814 | 0.072* |
− 2 | 0.044 | 0.120 | 0.034 | 0.124 | 0.506 | 0.613 |
− 1 | 0.062 | 0.170 | 0.038 | 0.118 | 1.357 | 0.177 |
0 | 0.100 | 0.216 | 0.078 | 0.219 | 0.604 | 0.547 |
1 | 0.168 | 0.280 | 0.083 | 0.179 | 2.275 | 0.024** |
2 | 0.214 | 0.404 | 0.142 | 0.235 | 1.416 | 0.159 |
3 | 0.352 | 0.405 | 0.260 | 0.360 | 1.443 | 0.151 |
4 | 0.356 | 0.470 | 0.353 | 0.614 | 0.029 | 0.977 |
5 | 0.327 | 0.408 | 0.366 | 0.487 | 0.467 | 0.641 |
6 | 0.306 | 0.403 | 0.382 | 0.690 | 0.794 | 0.428 |
7 | 0.314 | 0.451 | 0.343 | 0.510 | 0.336 | 0.738 |
8 | 0.387 | 0.550 | 0.323 | 0.588 | 0.745 | 0.457 |
9 | 0.257 | 0.405 | 0.367 | 0.783 | 1.078 | 0.283 |
10 | 0.294 | 0.657 | 0.417 | 0.976 | 0.891 | 0.375 |
Data points and T-tests for journal articles published
Year | Men | Women | T-test | P-value | ||
---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
− 5 | 0.011 | 0.057 | 0.000 | 0.000 | 1.687 | 0.094* |
− 4 | 0.027 | 0.130 | 0.000 | 0.000 | 1.818 | 0.071* |
− 3 | 0.015 | 0.085 | 0.000 | 0.000 | 1.519 | 0.131 |
− 2 | 0.034 | 0.103 | 0.018 | 0.077 | 1.062 | 0.290 |
− 1 | 0.034 | 0.138 | 0.021 | 0.086 | 0.959 | 0.339 |
0 | 0.038 | 0.130 | 0.039 | 0.129 | 0.041 | 0.968 |
1 | 0.070 | 0.132 | 0.028 | 0.085 | 2.449 | 0.016** |
2 | 0.110 | 0.193 | 0.074 | 0.157 | 1.291 | 0.199 |
3 | 0.164 | 0.243 | 0.132 | 0.230 | 0.822 | 0.413 |
4 | 0.219 | 0.310 | 0.178 | 0.231 | 0.925 | 0.357 |
5 | 0.201 | 0.244 | 0.196 | 0.242 | 0.236 | 0.814 |
6 | 0.206 | 0.236 | 0.203 | 0.279 | 0.137 | 0.891 |
7 | 0.215 | 0.379 | 0.228 | 0.323 | 0.175 | 0.861 |
8 | 0.205 | 0.310 | 0.182 | 0.289 | 0.552 | 0.581 |
9 | 0.168 | 0.243 | 0.171 | 0.284 | 0.049 | 0.961 |
10 | 0.167 | 0.265 | 0.189 | 0.285 | 0.477 | 0.634 |
Data points and T-tests for reviews published
Year | Men | Women | T-test | P-value | ||
---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
− 5 | 0.000 | 0.000 | 0.000 | 0.000 | ||
− 4 | 0.000 | 0.000 | 0.000 | 0.000 | ||
− 3 | 0.000 | 0.000 | 0.000 | 0.000 | ||
− 2 | 0.000 | 0.000 | 0.000 | 0.000 | ||
− 1 | 0.000 | 0.000 | 0.000 | 0.000 | ||
0 | 0.000 | 0.000 | 0.000 | 0.000 | ||
1 | 0.045 | 0.156 | 0.015 | 0.083 | 1.455 | 0.148 |
2 | 0.007 | 0.058 | 0.005 | 0.039 | 0.277 | 0.782 |
3 | 0.010 | 0.050 | 0.008 | 0.048 | 0.280 | 0.780 |
4 | 0.005 | 0.039 | 0.016 | 0.080 | 1.089 | 0.278 |
5 | 0.015 | 0.075 | 0.004 | 0.024 | 1.208 | 0.229 |
6 | 0.000 | 0.000 | 0.017 | 0.123 | 1.174 | 0.242 |
7 | 0.007 | 0.058 | 0.013 | 0.056 | 0.657 | 0.512 |
8 | 0.015 | 0.075 | 0.019 | 0.086 | 0.291 | 0.772 |
9 | 0.021 | 0.086 | 0.024 | 0.096 | 0.217 | 0.829 |
10 | 0.019 | 0.076 | 0.030 | 0.106 | 0.745 | 0.457 |
Data points and T-tests for other publications published
Year | Men | Women | T-test | P-value | ||
---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
− 5 | 0.000 | 0.000 | 0.005 | 0.032 | 1.349 | 0.179 |
− 4 | 0.005 | 0.039 | 0.000 | 0.000 | 1.000 | 0.319 |
− 3 | 0.009 | 0.049 | 0.004 | 0.022 | 0.943 | 0.347 |
− 2 | 0.010 | 0.052 | 0.016 | 0.100 | 0.439 | 0.661 |
− 1 | 0.028 | 0.108 | 0.017 | 0.064 | 0.948 | 0.345 |
0 | 0.062 | 0.145 | 0.039 | 0.147 | 0.938 | 0.350 |
1 | 0.053 | 0.129 | 0.040 | 0.101 | 0.705 | 0.482 |
2 | 0.097 | 0.250 | 0.063 | 0.139 | 1.122 | 0.264 |
3 | 0.178 | 0.309 | 0.120 | 0.231 | 1.266 | 0.207 |
4 | 0.132 | 0.258 | 0.159 | 0.512 | 0.412 | 0.681 |
5 | 0.111 | 0.249 | 0.166 | 0.366 | 1.065 | 0.289 |
6 | 0.100 | 0.241 | 0.163 | 0.485 | 0.997 | 0.320 |
7 | 0.093 | 0.181 | 0.103 | 0.284 | 0.261 | 0.795 |
8 | 0.167 | 0.312 | 0.123 | 0.371 | 0.822 | 0.412 |
9 | 0.068 | 0.163 | 0.173 | 0.546 | 1.583 | 0.116 |
10 | 0.108 | 0.471 | 0.198 | 0.765 | 0.851 | 0.396 |
Data points and T-tests for citations received
Year | Men | Women | T-test | P-value | ||
---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
− 5 | 0.052 | 0.311 | 0.000 | 0.000 | 1.434 | 0.154 |
− 4 | 0.188 | 1.125 | 0.000 | 0.000 | 1.439 | 0.152 |
− 3 | 0.130 | 0.654 | 0.002 | 0.019 | 1.686 | 0.094 |
− 2 | 0.298 | 1.439 | 0.063 | 0.342 | 1.367 | 0.174 |
− 1 | 0.272 | 1.437 | 0.287 | 1.077 | 0.231 | 0.817 |
0 | 0.363 | 1.226 | 0.662 | 2.470 | 0.933 | 0.352 |
1 | 0.794 | 2.148 | 1.016 | 7.853 | 0.230 | 0.818 |
2 | 1.122 | 3.390 | 1.164 | 3.230 | 0.080 | 0.936 |
3 | 2.397 | 4.374 | 2.319 | 5.286 | 0.097 | 0.923 |
4 | 4.504 | 12.137 | 3.035 | 4.290 | 0.981 | 0.328 |
5 | 3.245 | 4.946 | 3.714 | 5.715 | 0.517 | 0.606 |
6 | 3.314 | 5.299 | 3.308 | 5.797 | 0.021 | 0.983 |
7 | 2.450 | 4.134 | 4.667 | 8.745 | 1.968 | 0.051 |
8 | 3.153 | 7.393 | 3.242 | 5.800 | 0.082 | 0.935 |
9 | 2.004 | 3.506 | 2.916 | 6.545 | 1.058 | 0.292 |
10 | 1.335 | 2.711 | 3.555 | 7.126 | 2.463 | 0.015 |
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Frandsen, T.F., Jacobsen, R.H. & Ousager, J. Gender gaps in scientific performance: a longitudinal matching study of health sciences researchers. Scientometrics 124, 1511–1527 (2020). https://doi.org/10.1007/s11192-020-03528-z
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DOI: https://doi.org/10.1007/s11192-020-03528-z