Epidemiology of opioid use in pregnancy

The world has been experiencing an opioid epidemic for over 20 years, and rates of use and overdose among women, including during pregnancy, have risen markedly. Women receive more prescriptions for opioids compared to men. Data suggest that 20% of women filled at least one prescription for an opioid during their pregnancy, and the prevalence of prenatal exposure averaged 14%. Opioid use by women, especially during pregnancy and while breastfeeding, and management and treatment is complex for healthcare providers, especially related to methadone treatment, pain management during labour, neonatal opioid withdrawal syndrome, nutritional issues and maternal withdrawal. Opioid use during pregnancy has been associated with maternal, foetal and infant complications, and overdose has become a leading cause of death in post-partum women in some countries. Universal screening for opioid use disorder (OUD) is recommended in pregnancy, and prevention and treatment programs that meet the specific needs of women are important to understand and consider as the world continues to try to anticipate and respond to the realities of the opioid epidemic.