Lee, Shing FungRedondo Sánchez, DanielSanchez-Perez, Maria-JoseGelaye, BizuChiang, Chi LeungWong, Irene Oi LingCheung, Denise Shuk TingLuque Fernandez, Miguel Angel2022-12-092022-12-092021Lee SF, Redondo Sánchez D, Sánchez MJ, Gelaye B, Chiang CL, Wong IOL, et al. Trends in gender of authors of original research in oncology among major medical journals: a retrospective bibliometric study. BMJ Open. 2021 Oct 18;11(10):e046618http://hdl.handle.net/10668/4472Objective: We evaluated the temporal trend in gender ratios of first and last authors in the field of oncological research published in major general medical and oncology journals and examined the gender pattern in coauthorship. Design: We conducted a retrospective study in PubMed using the R package RISmed. We retrieved original research articles published in four general medical journals and six oncology specialty journals. These journals were selected based on their impact factors and popularity among oncologists. We identified the names of first and last authors from 1 January 2002 to 31 December 2019. The gender of the authors was identified and validated using the Gender API database (https://gender-api.com/). Primary and secondary outcome measures The percentages of first and last authors by gender and the gender ratios (male to female) and temporal trends in gender ratios of first and last authors were determined. Results: We identified 34 624 research articles, in which 32 452 had the gender of both first and last authors identified. Among these 11 650 (33.6%) had women as the first author and 7908 (22.8%) as the last author, respectively. The proportion of female first and last authors increased from 26.6% and 16.2% in 2002, to 32.9% and 27.5% in 2019, respectively. However, the gender ratio (male to female) of first and last authors decreased by 1.5% and 2.6% per year, respectively, which were statistically significant (first author: incidence rate ratio (IRR) 0.98, 95% CI 0.97 to 1.00; last author: IRR 0.97, 95% CI 0.96 to 0.99). Male first and last authorship was the most common combination. Male–female and female–female pairs increased by 2.0% and 5.0%, respectively (IRR 1.02, 95% CI 1.01 to 1.03 and IRR 1.05, 95% CI 1.04 to 1.06, respectively). Conclusions: The continued under-representation of women means that more efforts to address parity for advancement of women in academic oncology are needed.enAtribución-NoComercial 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc/4.0/AuthorshipParityOncologistsOncologyGenderBibliometricAutoriaParidadOncólogosOncología médicaEstudios de géneroBibliometríaMedical Subject Headings::Information Science::Information Science::Communication::Language::Language Arts::Writing::AuthorshipMedical Subject Headings::Information Science::Information Science::Communications Media::Publications::Bibliography as Topic::BibliometricsMedical Subject Headings::Check Tags::FemaleMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::HumansMedical Subject Headings::Check Tags::MaleMedical Subject Headings::Disciplines and Occupations::Health Occupations::Medicine::Internal Medicine::Medical OncologyMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Case-Control Studies::Retrospective StudiesMedical Subject Headings::Information Science::Information Science::Communications Media::Publications::Serial Publications::Periodicals as TopicMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::Morbidity::IncidenceMedical Subject Headings::Health Care::Environment and Public Health::Public Health::Epidemiologic Factors::Reproductive History::ParityMedical Subject Headings::Disciplines and Occupations::Natural Science Disciplines::Science::Research::Biomedical Research::Outcome Assessment (Health Care)Medical Subject Headings::Information Science::Information Science::Information Storage and Retrieval::Databases as Topic::Databases, Bibliographic::PubMedresearch article34663651Acceso abierto10.1136/bmjopen-2020-0466182044-6055PMC8524267