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采用病例－对照研究，调查１９９１年３月至１９９３年２月我院子宫内膜异位症１９０例（异位症组）和非子宫内膜异位症１９２例（对照组），进行单因素分析。结果：和子宫内膜异位症有关的因素有月经过多（ＯＲ＝３．０９）、月经周期＜２７天（ＯＲ＝１．８９）、合并子宫肌瘤或子宫腺肌症（ＯＲ＝１．８４）、干部职业（ＯＲ＝１．７１）。两组比较，差异均有显著性（Ｐ均＜０．０５）。两组已婚者人工流产率相似，但人工流产次数，异位症组低于对照组（Ｐ＜０．０５）。多因素分析发现，月经过多和干部职业与异位症有密切关系。
A case-control study was conducted to investigate 190 patients with endometriosis (ectopic group) and 192 patients with non-endometriosis (control group) from March 1991 to February 1993 in our hospital. analysis. Results: The factors associated with endometriosis were menorrhagia (OR = 3.09), menstrual cycle <27 days (OR = 1.89), uterine fibroids or adenomyosis .84), cadre occupation (OR = 1.71). The difference between the two groups was significant (P <0.05). The incidence of induced abortion in both groups was similar, but the number of induced abortion and ectopic group were lower than that of the control group (P <0.05). Multivariate analysis found that menorrhagia and cadre occupational and etiology are closely related.