Association of SARS-CoV-2 Test Status and Pregnancy Outcomes

Abstract

This study examines the pregnancy outcomes of individuals infected with SARS-CoV-2 and those uninfected at a hospital in Sweden.

Figure.. Maternal Outcomes by SARS-CoV-2 Test Results

^aDirect matching on multiple births and on a propensity score including maternal age, parity, early-pregnancy body mass index, educational level, country of birth, smoking status, living with partner, and prepregnancy comorbidity (yes/no). ^bVariables in the regression models were age (continuous), body mass index (<30/≥30), country of birth (Nordic/non-Nordic), parity (nulliparous/parous), living with partner (yes/no), and prepregnancy comorbidity. ^cAnalyses performed on all deliveries except elective cesarean. ^dData were missing for n = 3 (1.9%) in the group with positive test results and n = 28 (4.6%) in the group with negative ones. ^eMissing data for n = 21 (13.5%) in the group with positive test results and n = 88 (14.6%) in the group with negative ones. ^fMissing data for n = 4 (2.5%) in the group with positive test results and n = 20 (3.3%) in the group with negative ones. ^gDefined as greater than 90th (large) or less than 10th (small) percentile by gestational age and sex. Birth weight was missing for n = 5 (3.2%) in the group with positive test results and n = 39 (6.4%) in the group with negative ones. ^hDeath before delivery from 22 weeks 0 days.