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CONTEXT: Little research links adolescent risk behaviors to reproductive health outcomes beyond adolescence, although young adults—men and women in their early 20s— bear a disproportionate burden of STDs and unintended childbearing.

METHODS: To assess whether individuals who engaged in risk behaviors during adolescence had increased risk of negative reproductive health outcomes in young adulthood, data from Waves 1–4 of the National Longitudinal Study of Adolescent Health on 5,798 sexually active respondents were analyzed. Logistic and multinomial logistic regressions examined associations between risk behaviors (cumulatively and individually) and each of three outcomes.

RESULTS: Four in 10 youth reported at least three risk factors during adolescence. Women who were exposed to an increasing number of risks had an elevated likelihood of having had …