OBJECTIVE
To evaluate the associations between postpartum contraception and having a recent preterm birth.
STUDY DESIGN
Population-based data from the Pregnancy Risk Assessment Monitoring System in nine states were used to estimate postpartum use of highly or moderately effective contraception (sterilization, intrauterine device, implants, shots, pills, patch, and ring) and user-independent contraception (sterilization, implants, and intrauterine device) among women with recent live births (2009–2011). We assessed differences in contraception by gestational age (≤27, 28–33, or 34–36 weeks versus term [≥37 weeks]) and modeled the associations using multivariable logistic regression with weighted data.
RESULTS
A higher percentage of women with recent extreme preterm birth (≤27 weeks) reported using no postpartum method (31%) compared with all other women (15%–16%). Women delivering extreme preterm infants had decreased odds of using highly or moderately effective methods (adjusted odds ratio [aOR]=0.5, 95% confidence interval [CI]: 0.4 – 0.6) and user-independent methods (aOR=0.5, 95% CI: 0.4 – 0.7) compared with women having term births. Wanting to get pregnant was more frequently reported as a reason for contraceptive non-use by women with an extreme preterm birth overall (45%) compared with all other women (15%–18%, p<.0001). Infant death occurred in 41% of extreme preterm births and over half (54%) of these mothers reported wanting to become pregnant as the reason for contraceptive non-use.
CONCLUSIONS
During contraceptive counseling with women who had recent preterm births, providers should address optimal pregnancy interval, and consider that women with recent extreme preterm birth, particularly those whose infants died, may not use contraception because they want to get pregnant.