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为探讨卵巢恶性肿瘤的危险因素，采用１∶２配比病例对照研究，在成都对７１例经病理学检查确诊的原发性卵巢恶性肿瘤住院病人及１４２例与其同民族、年龄相差不超过５岁的对照进行了问卷调查。用单因素和多因素条件Ｌｏｇｉｓｔｉｃ回归模型对资料进行分析。结果提示：高产次和哺乳是卵巢恶性肿瘤的保护因素。卵巢恶性肿瘤家族史、良性乳房疾病患病史、居住在市郊或农村以及染发是该病的危险因素。大力提倡母乳喂养和改变一些不良生活习惯（如染发）是预防卵巢恶性肿瘤的可行方法。
In order to explore the risk factors of ovarian cancer, using 1: 2 matching case-control study in Chengdu, 71 cases of pathologically diagnosed primary ovarian cancer hospitalized patients and 142 with its same ethnic group, the age difference of no more than 5 Aged controls were surveyed. Data were analyzed using single-factor and multi-factor conditional logistic regression models. The results suggest that high yield and lactation are the protective factors of ovarian cancer. Family history of ovarian cancer, history of benign breast disease, living in the suburbs or rural areas, and hair coloring are risk factors for the disease. Vigorously promoting breastfeeding and changing some unhealthy habits (such as hair coloring) is a viable way to prevent ovarian cancer.