Kristen Peterson

Relationship Characteristics and Contraceptive Use Among Young Adults

CONTEXT Young adults have high rates of unintended childbearing and STDs, yet little research has examined the role of relationship characteristics in their contraceptive use. METHODS Data collected from the 2002-2005 rounds of the National Longitudinal Survey of Youth yielded a sample of 4,014 dating relationships among sexually active 18-26-year-olds. Bivariate analysis and multivariate logistic and multinomial logistic regressions assessed associations between relationship characteristics and contraceptive use at last sex. RESULTS In three-quarters of the relationships, respondents had used some method at last intercourse; respondents in 26% of the relationships had used a condom only, in 26% a hormonal method only and in 23% dual methods. Compared with respondents in relationships in which first sex occurred within two months of starting to date, those who first had sex before dating were more likely to have used any method at last sex (odds ratio, 1.4), particularly condoms or dual methods (relative risk ratio, 1.5 for each). The relative risk of using a hormonal method only, rather than no method or condoms only, increased with relationship duration (1.01) and level of intimacy (1.1-1.2). Discussing marriage or cohabitation was associated with reduced odds of having used any method (0.7) and a reduced relative risk of having used condoms alone or dual methods (0.6 for each). Increasing levels of partner conflict and asymmetry were also linked to reduced odds of any method use (0.97 and 0.90, respectively). CONCLUSIONS Prevention programs should address relationship context in contraceptive decision making, perhaps by combining relationship and sex education curricula to foster communication and negotiation skills.

Union Transitions Following the Birth of a Child to Cohabiting Parents

Despite a growing interest in the family trajectories of unmarried women, there has been limited research on union transitions among cohabiting parents. Using data from the 2002 National Survey of Family Growth, we examined how family complexity (including relationship and fertility histories), as well as characteristics of the union and birth, were associated with transitions to marriage or to separation among 1,105 women who had a birth in a cohabiting relationship. Cohabiting parents had complex relationship and fertility histories, which were tied to union transitions. Having a previous nonmarital birth was associated with a lower relative risk of marriage and a greater risk of separation. In contrast, a prior marriage or marital birth was linked to union stability (getting married or remaining cohabiting). Characteristics of the union and birth were also important. Important racial/ethnic differences emerged in the analyses. Black parents had the most complex family histories and the lowest relative risk of transitioning to marriage. Stable cohabitations were more common among Hispanic mothers, and measures of family complexity were particularly important to their relative risk of marriage. White mothers who began cohabiting after conception were the most likely to marry, suggesting that “shot-gun cohabitations” serve as a stepping-stone to marriage.