Methods: All data was acquired from the CDC’s National Survey of Family Growth. I combined the results of the 2006-2010, 2011-2013, and 2013-2015 versions of the Female Questionnaire. Each of these surveys was administered “continuously”, or weekly over the course of several years instead of all at once. All survey-takers were “household residents” (i.e., not living in an institution such as prison, homes for juvenile delinquents, homes for the intellectually disabled, long-term psychiatric hospitals, and those living on military bases) living in the 50 United States or District of Columbia of reproductive age (15-44 years). The study design was intended to provide nationally representative sample that oversamples for non-Hispanic black people, Hispanic people, and teens aged 15-19. Any respondent that had never used any form of contraception was excluded from this analysis. More information about the CDC’s surveying methods is available here.
You can download the data as well as all R scripts used to process the data from here.
In this project, the phrase “internal reproductive system” refers to a system which may include uterus, ovaries, and/or a vagina and the phrase “external reproductive system” refers to a system which may include testes and/or a penis.
Many thanks are owed to Rachel Jones of the Guttmacher Institute for extensive feedback on our analyses and presentation of the data. For more analysis on these data, check out The Guttmacher Institute’s peer-reviewed publications.
Pssst! I’m here to help.
Click on any type of birth control in the graphics or text and I’ll tell you what it is.