Fortney J A, Harper J M, Potts M
Stud Fam Plann. 1986 May-Jun;17(3):117-25.
Life expectancy for women in the United States is 77.34 years; women who take oral contraceptives (OCs) for five years before the age of 30 can expect to live about four days longer. This is due primarily to protection against ovarian and endometrial cancers. For women taking pills for five years in their thirties there is a maximum loss of 18 days on the average that is attributable to OC use, and for women over 45 this rises to 80 days. The decreased life expectancy is due mainly to the increased mortality from myocardial infarction and stroke. This is substantially less than life lost due to use of a variety of other substances, most notably tobacco.
美国女性的预期寿命为77.34岁；30岁前服用口服避孕药（OCs）达五年的女性预期寿命可延长约四天。这主要是由于预防了卵巢癌和子宫内膜癌。对于30多岁服用避孕药五年的女性，平均最多因服用OCs而减少18天寿命，45岁以上的女性则增至80天。预期寿命的降低主要是由于心肌梗死和中风导致的死亡率增加。这大大低于因使用多种其他物质（最显著的是烟草）而损失的寿命。
