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Although expanding research has found that relationship characteristics can shape contraceptive use among young adults, limited research has examined how relationship characteristics intersect to form distinct types of relationships and how relationship types are linked to contraceptive use.

Data from the 2002–2005 rounds of the National Longitudinal Survey of Youth 1997 cohort were used to examine contraceptive use in 3,485 young adult dating relationships. Latent class analysis was employed to develop a typology of relationships using measures of relationship structure (duration) and quality (intimacy, commitment and conflict). Multinomial logistic regression analyses were used to estimate associations between relationship type and contraceptive use and method choice at last sex.

Four types of relationships were identified, two shorter term and two longer term …