Aved B M
Am J Public Health. 1981 Oct;71(10):1162-4. doi: 10.2105/ajph.71.10.1162.
The types of primary contraceptive method chosen by women seeking services in California family planning clinics are reviewed for the years 1976-1979. Of most significance was the decline in the use of oral contraceptives (OC) and the concurrent rise in nonprescription methods at all ages. A striking difference in OC use between the earlier and latter time periods was noted for women age 40 and older.
对1976年至1979年期间在加利福尼亚计划生育诊所寻求服务的女性所选择的主要避孕方法类型进行了回顾。最显著的是口服避孕药(OC)的使用下降以及各年龄段非处方避孕方法的同时增加。40岁及以上女性在OC使用方面的早期和后期时间段存在显著差异。