美国一项大规模调查结果表明,使用口服避孕药不会增加妇女罹患乳腺癌的风险。有关研究人员指出,这一结果对妇女来说是个“好消息”,可以消除她们不必要的担心。美国疾病控制和预防中心等机构的研究人员在最新一期《新英格兰医学杂志》上介绍说,他们对全美范围内9200多名妇女进行了调查,这些妇女年龄在35～64岁之间,有白人也有黑人,其中一半最近被查出了乳腺癌,另一半则没有患病。两组妇女中,用过不同形式口服避孕 A large survey in the United States showed that the use of oral contraceptives does not increase the risk of breast cancer in women. Researchers pointed out that this result is “good news” for women and can eliminate their unnecessary concerns. Researchers at the U.S. Centers for Disease Control and Prevention said in their latest issue of the New England Journal of Medicine that they surveyed more than 9,200 women across the U.S., ages 35 to 64. Whites also have blacks, half of whom have recently been diagnosed with breast cancer, and the other half have not been sick. Two groups of women used different forms of oral contraception