This study aimed to investigate the prevalence of dysmenorrhea in a prospective approach. Menstruation-related diary data were obtained from 2640 female college students in North Sichuan Medical College; dysmenorrhea and related factors were analyzed. Dysmenorrhea occurred in 56.4% of students; 6.5% of dysmenorrheal students suffered from “hard to bear” (unbearable) menstrual pain, and 6.5% had pre-menstrual dysmenorrhea. The more severe dysmenorrhea was, the longer dysmenorrhea lasted, and the longer the duration of menstruation and the larger the amount of menstrual blood flow appeared to be. Dysmenorrhea occurred on 37% of the menstrual dates on average and was unrelated to irregularity of menstrual cycles. The percentages of students taking medicine with mild, moderate and unbearable dysmenorrhea were 4.0%, 13.3% and 23.7%, respectively.
Hillen, T.I., Grbavac, S.L., Johnston, P.J., Straton, J.A. and Keogh, J.M. (1999). Primary dysmenorrhea in young Western Australian women: Prevalence, impact, and knowledge of treatment. Journal of Adolescent Health, 25, 40-45.
Wang, G.H., Chen, W.Y. and Wang, X.J. (1997). Investigation of the prevalence and related factors of dysmenorrhea in female college students. Chinese Journal of Preventive Medicine, 31, 253 (in Chinese).
Wang, B.G., Chen, S.D., Zhou, W.P. and Wang, G.Q. (2008) Study on the menstrual periods and health care of female college students in Guangzhou. Chinese Journal of School Doctor, 22, 162-163 (in Chinese).
Yu, Q.H., Zhu, D., Yun, M.Y. and Kang, X.P. (2008) Investigation of dysmenorrhea status and intervention of Chinese medicine of female undergraduate students of each nationality. Chinese Journal of Family Planning, 16, 478-480 (in Chinese).
Harlow, S.D., Lin, X. and Ho, M.J. 2000. Analysis of menstrual diary data across the reproductive life span applicability of the bipartite model approach and the importance of within-woman variance. Journal of Clinical Epidemiology, 53, 722-733.