Use of concurrent multiple methods of contraception in the United States, 2008 to 2015.

Objective: To identify prevalence of, characteristics associated with, and combinations of, use of more than one method of contraception at last intercourse among US women between 2008 and 2015.

Methods: We conducted bivariate and multivariable logistic regression analyses using data on concurrent contraceptive use from 2 nationally representative samples of women ages 15 to 44 who had used some form of contraception at last intercourse in the past 3 months in the 2006-2010 ( = 6601) and 2013-2017 ( = 5562) cycles of the National Survey of Family Growth.

Results: Use of more than one method of contraception at last sex increased from 14% in 2008 to 18% in 2015 (<0.