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Author: McWilliams, Christine Ann
Resulting in 1 citation.
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McWilliams, Christine Ann |
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Age-related Differences in Contraceptive Use Ph.D. Dissertation, Department of Population Health, University of Wisconsin - Madison, 2019 Cohort(s): NLSY79 Publisher: ProQuest Dissertations & Theses (PQDT) Keyword(s): Age at First Birth; Contraception; National Survey of Family Growth (NSFG) Permission to reprint the abstract has not been received from the publisher. Methods: Analyses of the National Survey of Family Growth (NSFG) 2011-2015 examined differences by age, and interactions between age and age at first birth, in proportions using 1) tubal ligation, IUDs, and methods that do not require a healthcare provider (HCP), among all contraceptors and 2) contraceptive non-use among all respondents at risk of unintended pregnancy. Logistic regressions with natural cubic spline expansion were employed. Analyses of the National Longitudinal Survey of Youth 1979 (NLSY79) were used to assess risk of tubal ligation uptake by age using complementary log-log regression. Results: Tubal ligation use increases with age cross-sectionally and the increase is larger in those with younger first births. IUD use has a nonlinear relationship with age and differs between age at first birth groups, and methods that do not require a HCP have a nonlinear relationship with age but proportions generally decrease as age increases. This trend reverses when restricting to reversible contraception methods only. Non-use diverges by age at first birth group among respondents over 40. Tubal ligation risk increases substantially after age 40. |
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Bibliography Citation
McWilliams, Christine Ann. Age-related Differences in Contraceptive Use. Ph.D. Dissertation, Department of Population Health, University of Wisconsin - Madison, 2019. |