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目的：研究异位妊娠发生的危险因素，为提高其防治水平提供科学根据。方法：采用Ｌｏｇｉｓｔｉｃ回归分析方法，对３５７例患者从４个方面共１６个危险因素进行病因分析。结果：病例组的盆腔炎史、产褥感染、卵巢肿瘤、阑尾炎史、不孕史、经产妇、置节育器的阳性暴露率与对照组相比有显著差异，Ｐ＜０．０１；病例组的子宫肌瘤、异位妊娠史的阳性暴露率与对照组相比有差异，Ｐ＜０．０５。相对比值比（ＯＲ）均在１０５．０５７～２．８９７之间。结论：以上因素对异位妊娠的发生有明显的影响作用，其中盆腔炎史、产褥感染、卵巢肿瘤、阑尾炎史、不孕史、经产妇、子宫肌瘤、置节育器的相对危险度较高
Objective: To study the risk factors of ectopic pregnancy and provide scientific basis for raising the level of prevention and treatment. Methods: Logistic regression analysis was used to analyze the etiology of 357 patients with 16 risk factors from 4 aspects. Results: The pelvic inflammatory disease history, puerperal infection, ovarian cancer, appendicitis history, infertility history, the positive rate of exposure by maternal and IUD were significantly different from the control group (P <0.01). The case group Of uterine fibroids, the positive rate of ectopic pregnancy history compared with the control group, P <0.05. The relative odds ratio (OR) were between 105.057 ~ 2.897. Conclusion: The above factors have a significant effect on the incidence of ectopic pregnancy, including pelvic inflammatory disease history, puerperal infection, ovarian cancer, appendicitis history, infertility history, maternal, uterine fibroids, IUD relative risk compared high