Short Interpregnancy Interval and Obstetric Outcome [22C]. (May 2017) - Holloman, Conisha
Abstract : INTRODUCTION: The interpregnancy interval (IPI) has been reported to influence pregnancy outcomes. The purpose of this study was to evaluate the obstetrical outcomes of patients with an interval pregnancy less than 12 months compared to an interval of 12 to 43 months. METHODS: Retrospective analysis of all deliveries between 1/1/2012 and 9/30/2013. The IPIs were grouped as less than or equal to 12 months (Grp 1) and greater than 12 months and less than 44 months (Grp 2). Primary outcomes included NICU admissions, Cesarean rate, cord pH, Apgars at 1 and 5 minutes, birth weight (BW) and estimated gestational age at delivery (EGA). Statistical analysis included chi-square and student's t-test (p= < 0.05). RESULTS: Of the 3, 796 patients, group 1 included 396 patients (10.4%) and group 2 included 3400 patients (89.6%). A statistically significant difference was noted in NICU admissions, gestational age at delivery, birth weight, Apgars at 1 and 5 minutes and Cesarean rate (P less than .05). No difference was noted between cord pH (p=0.78). Significant maternal characteristics included age, body mass index), parity, race, marital status, private insurance, and Medicaid (P less than .05). CONCLUSION: Short interpregnancy intervals have been linked to increased risk for preterm birth, low birth weight, labor dystocia and maternal morbidity and mortality. Our study showed significant differences between short IPI vs. more prolonged spacing between pregnancies in regards to neonatal outcomes. The differences seen in maternal racial, socio-economic status may also reveal the effects of underlying disparities on this relationship.