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|Abstract:||Background: We sought to estimate the prevalence of types of combined oral contraceptives (COCs) used among US women. Study Design: We analyzed interview-collected data from 12,279 women aged 15-44 years participating in the National Survey of Family Growth, 2006-2010. Analyses focused on COC use overall, by pill type, across sociodemographics and health factors. Results: The prevalence of current COC use (88 different brands) was 17%. The majority of COC users used earlier-formulation COCs: >= 30 mcg (67%) versus <30 mcg estrogen (33%), monophasic (67%) versus multiphasic (33%) dosages and traditional 21/7 (88%) versus extended/other cycle regimens (12%) regimens. Norgestimate (32%) and norethindrone (20%) were the most commonly used progestins. Sociodemographic, gynecological and health risk factors were associated with type of COC use. Conclusion: Further investigation of specific COC use and of the factors associated with types of pills used among US women at the population level is needed.|
|Citation:||Hall, KS, Trussell, J. (2012). Types of combined oral contraceptives used by US women. Contraception, 86 (659 - 665). doi:10.1016/j.contraception.2012.05.017|
|Pages:||659 - 665|
|Type of Material:||Journal Article|
|Version:||Final published version. This is an open access article.|
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