Abstract
WHAT IS ALREADY KNOWN ABOUT THIS TOPIC? Interpregnancy intervals (IPIs) that are either excessively long or short have been linked with an elevated risk of adverse perinatal outcomes. Presently, no pertinent guidelines have been established in China to provide clear direction with regard to optimal IPI. WHAT IS ADDED BY THIS REPORT? A brief interpregnancy interval may elevate the risk of miscarriage, postpartum hemorrhage, and fetal distress among expectant women. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? These results could inform prenatal consultations, guiding pregnant women towards an ideal interpregnancy interval of no less than 24 months.