Association between interpregnancy interval and hypertensive disorders of pregnancy: Effect modification by maternal age

Short and long interpregnancy intervals (IPI) are associated with increased risk of hypertensive disorders of pregnancy, yet whether this association is modified by maternal age remains unclear. We examined if the association between IPI and hypertensive disorders of pregnancy varies by maternal age at birth prior to IPI.

Citation:
Gebremedhin AT, Tessema GA, Regan AK, Pereira G. Association between interpregnancy interval and hypertensive disorders of pregnancy: Effect modification by maternal age. Paediatric and Perinatal Epidemiology. 2021.

Keywords:
Birth intervals; birth spacing; hypertensive disorders of pregnancy; interpregnancy interval; maternal age; pregnancy complications

Abstract:
Short and long interpregnancy intervals (IPI) are associated with increased risk of hypertensive disorders of pregnancy, yet whether this association is modified by maternal age remains unclear. We examined if the association between IPI and hypertensive disorders of pregnancy varies by maternal age at birth prior to IPI.