Estimates of global research productivity in gynecologic oncology.
BACKGROUND
Societies worldwide invest considerably in research on oncological diseases of women. However, current literature lacks estimating this research production. We therefore evaluated quality and quantity of publications in gynecologic oncology.


METHODS
Revisit of 6119 peer-reviewed articles published in Gynecologic Oncology and the International Journal of Gynecological Cancer from January 1996 to December 2006. Descriptive data on disease origin, main topic, and country of origin were collected and analyzed separately. Research productivity was adjusted to the national population and nominal gross domestic product per capita.


RESULTS
Research production and international cooperative teamwork in the 2 main journals of gynecologic oncology increased within the 10 last years; 65.3% of all published articles dealt either with epithelial ovarian cancer, cervical cancer, or endometrial cancer. Endometrial cancer had the worst ratio number of publications to estimated national incidence (United States, 2007). The United States (41.15%) and Europe (29.72%) make up a striking 70.87% of the world's research production in the field of gynecologic oncology. However, the highest rate of increase shows in Turkey (22.5), the People's Republic of China (6.87), and South Korea (5.83). Adjusted to the national GDP per capita and population for the year 2006, research productivity seems best in Israel, Austria, and Turkey.


CONCLUSIONS
Quantitatively, most publications come from the presumed countries. Within the limits of the methodology used in this study, adjustment to population and GDP per capita provides information on research output. The scientific output on endometrial cancer is comparably low.
Klar
Maximilian
M
Department of Obstetrics and Gynecology, University of Freiburg, Medical School, Freiburg, Germany.
Földi
Martha
M
Denschlag
Dominik
D
Stickeler
Elmar
E
Gitsch
Gerald
G
D005260:Female; D005833:Genital Neoplasms, Female; D006801:Humans; D011642:Publications / Q000706:statistics & numerical data*; D012106:Research / Q000706:statistics & numerical data*