Gender trends in cardiothoracic surgery authorship

In recent years, the historically low proportion of women cardiothoracic surgeons and trainees has been a subject of intense focus. Publications remain a key metric of academic success and career advancement. We sought to identify trends in the gender of first and last author publications in cardiothoracic surgery.We searched for publications between 2011 and 2020 in 2 US cardiothoracic surgery journals, identifying those with Medical Subject Heading publication types of clinical trials, observational studies, meta-analyses, commentary, reviews, and case reports. A commercially available, validated software (Gender-API) was used to associate gender with author names. Association of American Medical Colleges Physician Specialty Data Reports were used to identify concurrent changes in the proportion of active women in cardiothoracic surgery.We identified 6934 (57.1%) pieces of commentary; 3694 (30.4%) case reports; 1030 (8.5%) reviews, systematic analyses, meta-analyses, or observational studies; and 484 (4%) clinical trials. In total, 15,189 total names were included in analysis. Over the 10-year study period, first authorship by women rose from 8.5% to 16% (0.42% per year, on average), whereas the percentage of active US women cardiothoracic physicians rose from 4.6% to 8% (0.42% per year). Last authorship was generally flat over the decade, going from 8.9% in 2011% to 7.8% in 2020 and on average, increased at just 0.06% per year (P = .79).Over the past decade, authorship by women has steadily increased, more so at the first author position. Author-volunteered gender identification at the time of manuscript acceptance may be useful to more accurately follow trends in publication.