Vessey M P, McPherson K, Yeates D, Doll R
Br J Cancer. 1982 Mar;45(3):327-31. doi: 10.1038/bjc.1982.58.
A recent publication from California in this journal has suggested that both prolonged oral contraceptive use and abortion before first term pregnancy increases the risk of breast cancer in young women. Data are presented on 1176 women aged 16-50 years with breast cancer, interviewed in London or in Oxford, together with a like number of matches control subjects. The results are entirely reassuring, being, in fact, more compatible with protective effects than the reverse. Possible reasons for the differences between the 2 sets of data are discussed.
加州近期在本期刊上发表的一篇文章指出，长期使用口服避孕药以及首次怀孕前堕胎会增加年轻女性患乳腺癌的风险。文中呈现了1176名年龄在16至50岁之间患乳腺癌女性的数据，这些女性是在伦敦或牛津接受访谈的，同时还选取了数量相当的匹配对照对象。结果完全令人安心，事实上，这些结果更倾向于表明有保护作用而非相反情况。文中讨论了两组数据存在差异的可能原因。
