Planning postpartum contraception for women with substance use disorders: Utilisation of the birth admission.

Background: Women with substance use disorders (SUD) use less contraception, and experience higher rates of unintended pregnancy, compared to women without SUD. Contraception is discussed at the six-week postnatal appointment, which many women with SUD do not attend. Therefore, it is important women have the opportunity to formulate contraception plans before discharge from the birth admission.

Aims: To assess postpartum contraception plans, including initiation and method of interest, among women with SUD and compare these to women without SUD.

Materials and methods: All births from January 2011 to September 2019 from one New South Wales local health district were analysed. Data included maternal demographics, SUD, and contraception plans. Chi-squared statistics and multivariate multinomial regression analyses were used to compare outcomes for women with and without SUD.

Results: Of 59 195 mothers, 429 (0.7%) had a SUD. There were 50.1% of women with SUD and 56.2% without SUD (P = 0.03) who had no documented plan for contraception. There were 37.3% of women with SUD and 42.4% without SUD (P = 0.06) who had a prescription for contraception or a referral to discuss contraception. There were 12.5% of women with SUD and 1.4% without SUD (P < 0.001) who initiated contraception in hospital.

Conclusions: Although postpartum contraception initiation was higher among women with SUD, half of all women (with or without SUD) were discharged without a plan for contraception initiation. Embedding provision of postpartum contraception into maternity care, or investigating other opportunities, may improve access for all women, including those with SUD.