title: [Epidemiological study on risk factors of pelvic endometriosis].
abstract: In order to study the risk factors associated with pelvic endometriosis, a case-control study was carried out from Mar. 1991 to Feb. 1993 in our gynecological ward. A total of 190 cases with endometriosis and 192 patients with non-endometriosis diseases (control group) were interviewed. Single factor analysis indicated that risk factors related to endometriosis were menorrhagia (OR = 3.09), short menstrual cycle (< 27 days) (OR = 1.89), complicated with uterine leiomyoma and (or) adenomyosis (OR = 1.84), occupation as cader (OR = 1.71), all with statistical significance (P < 0.05). The artificial abortion rate of married patients was similar between the two groups, but the abortion frequency was fewer in endometriosis patients (P < 0.05). Multifactor analysis confirmed that the risk factors associated with endometriosis were menorrhagia and occupation as cadre only.
authors.affiliation: First Affiliated Hospital, Beijing Medical University.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhou
authors.forename: B
authors.initials: B
authors.lastname: Wu
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D004715:Endometriosis / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000150:complications; D008595:Menorrhagia / Q000150:complications; D008875:Middle Aged; D009790:Occupations; D012307:Risk Factors; D014594:Uterine Neoplasms / Q000150:complications