96 - Preterm birth disparities at a single United States academic institution during the COVID pandemic
Saturday, January 30, 2021
12:15 PM – 12:30 PM EST
Objective: International reports suggest lower preterm birth (PTB) rates during the COVID pandemic. We sought to describe the PTB rate during COVID pandemic compared to prior years in a single academic US hospital system while stratifying for race and ethnicity.
Study Design: Retrospective cohort comparing all deliveries at > 20 weeks at single US tertiary center during the COVID pandemic (3/2020 – 7/2020) to all deliveries from the same months for the six years prior (2014 – 2019). Women with incomplete delivery data or IUFD were excluded. Primary outcome was PTB < 37 weeks. Secondary outcomes included PTB < 34 weeks and PTB < 28 weeks. Descriptive statistics performed using STATA.
Results: Of 18,141 included deliveries, 2647(14.6%) occurred during the pandemic. During the pandemic 383(14.5%) delivered preterm ( < 37 weeks) compared to 2026(13.1%) pre-pandemic (p=0.05). Rates of PTB < 34 and PTB < 28 did not differ.
8359(44.6%) women identified as White, 5932(31.6%) as Black, 1037(5.5%) as Asian, and 1654(8.8%) as “other”. Black women had a significant increase in PTB < 37 during the pandemic compared to the PTB rates for Black women pre-pandemic (21.9% vs. 16.4%, p< 0.001). Rates of PTB < 34 did not differ for Black women, however, rates of PTB < 28 were significantly increased (3.6% vs. 2.4%, p=0.04). PTB rates for White women, Asian women, those “not reported/declined”, and “other” were not different.
Majority (82.3%) of women identified as “Not Hispanic/Latino” and PTB rates were higher for that group during pandemic (15.4% COVID vs. 13.6% pre-COVID, p=0.03). 2844(15.1%) of women identified as Hispanic and when stratified by ethnicity, PTB rates among Puerto Rican women was higher during pandemic (26.7% COVID vs. 6.9% pre-COVID, p=0.02).
Conclusion: During the COVID pandemic, overall PTB rates were not statistically different; however, a significant increase in PTB rates was observed among Black and Puerto Rican women. These findings highlight the intersection between disparities in the COVID pandemic and PTB.