Trends and Correlates of Age-Disparate Sexual Partnerships in the United States: The National Health and Nutrition Examination Surveys.

ABSTRACT: This national survey demonstrates age-disparate (≥5 years; AD-5) sexual partnerships remain common among males and females aged 20-29 years in the U.S. (2005-2016). Females reported more older AD-5 partners and males reported more younger AD-5 partners. Having AD-5 partners was associated with greater lifetime and recent number of sexual partners.