Objectives To understand how relationship status influences contraceptive use among
young people. Study Design Data were collected as part of a longitudinal study on hormonal …

Because decisions related to contraceptive behavior are often made by young adults in the
context of specific relationships, the relational context likely influences use of contraceptives …

Objective This study examines changes over time in the prevalence of select sexual
behaviors and contraceptive use measures in a national sample of US adolescents. Study …

Context: While a number of studies have examined the association between individuals'
characteristics and their contraceptive use, few studies have examined the influence of …

Positive trends in adolescent sexual activity, contraceptive use, pregnancy, and childbearing
have occurred over the past decade. Between 1993 and 2003, the percentage of high …

Studies of adolescent pregnancy risk are relevant to understanding responsible adolescent
sexual behavior because most investigators have focused on the key proximal determinants …

PURPOSE: To examine how cohort trends in family, individual, and relationship
characteristics are linked to trends in adolescent reproductive health outcomes to provide a …

Background: Sexual debut before age 15 years has been associated with increased sexual
risk behaviors among teens, but little is known about its effects beyond adolescence. This …

Purpose To investigate the influence of sexual activity and contraceptive use on the decline
in adolescent birth rates and pregnancy rates since 2007. Methods We estimated trends in …

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 …