Trends in preterm birth in women living with HIV in Switzerland over the last three decades: A multicentric, prospective, cohort study

HIV infection and its management during pregnancy to reduce perinatal transmission has been associated with preterm birth (PTB). This management has drastically changed. We aimed to evaluate changes in rates of PTB over 34 years in women living with HIV (WLWH) in Switzerland, and to identify factors and interventions associated with these changes.