Department of Obstetrics and Gynaecology, University of Sydney, NSW, Australia.
Best Pract Res Clin Obstet Gynaecol. 2010 Aug;24(4):443-55. doi: 10.1016/j.bpobgyn.2010.02.002. Epub 2010 Mar 23.
Contraceptive failure contributes to a substantial proportion of unintended pregnancy, particularly in the developed world. A number of socio-demographic factors seem to impact on the risk of a woman experiencing contraceptive failure. Many of the issues exist across cultural boundaries and are complex to address. In discussing the failure rates for individual contraceptive methods, this article will highlight the advantage of improving uptake of long-acting reversible methods of contraception which have a high efficacy and are less user-dependent than many of the other available methods.
避孕失败是导致意外怀孕的一个重要原因，尤其是在发达国家。许多社会人口因素似乎会影响女性避孕失败的风险。许多问题跨越了文化界限，解决起来很复杂。在讨论个别避孕方法的失败率时，本文将强调提高长效可逆避孕方法使用率的优势，这些方法具有高效性，而且比许多其他可用方法的用户依赖性更小。
