Journal
CLINICAL INFECTIOUS DISEASES
Volume 75, Issue 11, Pages 1950-1961Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/cid/ciac294
Keywords
COVID-19; pregnancy; maternal; neonate; Africa
Categories
Funding
- US National Institutes of Health (NIH)/Fogarty International Center (FIC) [1R25TW011217-01]
- African Forum for Research and Education in Health (AFREhealth)
- Makerere University, Kampala, Uganda
- University of Kwazulu Natal, Durban, South Africa
- Stellenbosch University Faculty of Medicine and Health Sciences
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SARS-CoV-2 infection and pregnancy independently increase the risk of morbidity and mortality in hospitalized African women. Additionally, certain comorbidities like HIV, prior tuberculosis, sickle cell anemia, and non-gestational diabetes further increase the risk of ICU admission among pregnant and nonpregnant women with SARS-CoV-2 infection.
In hospitalized African women, both SARS-CoV-2 infection and pregnancy independently increased risks of morbidity and mortality. In addition, among pregnant and nonpregnant women with SARS-CoV-2 infection, HIV, prior tuberculosis, sickle cell anemia, and nongestational diabetes increased risk of ICU admission. Background Few data are available on COVID-19 outcomes among pregnant women in sub-Saharan Africa (SSA), where high-risk comorbidities are prevalent. We investigated the impact of pregnancy on SARS-CoV-2 infection and of SARS-CoV-2 infection on pregnancy to generate evidence for health policy and clinical practice. Methods We conducted a 6-country retrospective cohort study among hospitalized women of childbearing age between 1 March 2020 and 31 March 2021. Exposures were (1) pregnancy and (2) a positive SARS-CoV-2 RT-PCR test. The primary outcome for both analyses was intensive care unit (ICU) admission. Secondary outcomes included supplemental oxygen requirement, mechanical ventilation, adverse birth outcomes, and in-hospital mortality. We used log-binomial regression to estimate the effect between pregnancy and SARS-CoV-2 infection. Factors associated with mortality were evaluated using competing-risk proportional subdistribution hazards models. Results Our analyses included 1315 hospitalized women: 510 pregnant women with SARS-CoV-2, 403 nonpregnant women with SARS-CoV-2, and 402 pregnant women without SARS-CoV-2 infection. Among women with SARS-CoV-2 infection, pregnancy was associated with increased risk for ICU admission (adjusted risk ratio [aRR]: 2.38; 95% CI: 1.42-4.01), oxygen supplementation (aRR: 1.86; 95% CI: 1.44-2.42), and hazard of in-hospital death (adjusted sub-hazard ratio [aSHR]: 2.00; 95% CI: 1.08-3.70). Among pregnant women, SARS-CoV-2 infection increased the risk of ICU admission (aRR: 2.0; 95% CI: 1.20-3.35), oxygen supplementation (aRR: 1.57; 95% CI: 1.17-2.11), and hazard of in-hospital death (aSHR: 5.03; 95% CI: 1.79-14.13). Conclusions Among hospitalized women in SSA, both SARS-CoV-2 infection and pregnancy independently increased risks of ICU admission, oxygen supplementation, and death. These data support international recommendations to prioritize COVID-19 vaccination among pregnant women.
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