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目的 了解女性甲状腺功能状态与乳癌的关系。方法 １９９２ 年１ 月～１９９８ 年１ 月对１ ８２０ 名无甲状腺疾病史妇女，６３ 名原发性甲状腺机能减退妇女和１６８ 名原发性甲状腺机能亢进妇女的乳癌发生情况进行了调查。结果 甲状腺功能减退者，乳癌发生率高于正常人。结论 甲状腺功能减退是乳癌发生的危险性因素。
Objective To understand the relationship between female thyroid function status and breast cancer. Methods From January 1992 to January 1998, the incidence of breast cancer in 1 820 women without thyroid disease, 63 primary hypothyroidism and 168 primary hyperthyroidism women were investigated. Results Hypothyroidism, breast cancer incidence was higher than normal. Conclusions Hypothyroidism is a risk factor for breast cancer.