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口服避孕药是一种最受欢迎的可逆性避 孕方法。在美国目前已有1800万,约30％的育龄妇女采取此方法避孕,而且不久将会有高达80％的育龄妇女采用口服避孕药。因为口服避孕药不仅能高效避孕,而且还有一些避孕以外利于健康的药效,如:缓解疼痛,减少卵巢癌、子宫内膜癌及异位妊娠和盆腔炎的发病。此外,口服避孕药还可以补充和治疗30岁以上妇女的雌孕激素的不足。 但许多不希望妊娠的妇女服药后又中断服药。为了明确停用的频率、原因和今后如何改善,Hill等对1995年3月～1996年5月
Oral contraceptives are one of the most popular reversible contraceptive methods. In the United States, there are currently 18 million and about 30% of women of reproductive age are using this method of contraception, and soon up to 80% of women of reproductive age will be given oral contraceptives. Because oral contraceptives can not only efficient contraception, but also some other than contraception conducive to health benefits, such as: ease pain, reduce ovarian cancer, endometrial cancer and ectopic pregnancy and pelvic inflammatory disease. In addition, oral contraceptives can supplement and treat women over the age of 30 estrogen and progesterone deficiency. However, many women who do not wish to have their pregnancy discontinue their medication. In order to clarify the frequency of discontinuation, the reasons and how to improve in the future, Hill et al March 1995 ~ May 1996