Short Interpregnancy Intervals: An Evidence-Based Guide for Clinicians.

The interpregnancy interval (IPI) is the period of time between one birth outcome (live birth, miscarriage, stillbirth, or abortion) and conception of a subsequent pregnancy. Short IPI has been associated with obstetric, fetal, and maternal morbidity. While the literature has largely supported an ideal IPI of 18 to 23 months after live birth to minimize morbidity in a subsequent pregnancy, there are few references that can guide clinicians counseling patients about IPI after other pregnancy outcomes. In this article, we attempt to review, synthesize, and provide evidence-based IPI recommendations using the available literature.