Key Points Question Does the association between SARS-CoV-2 infection and severe maternal morbidity (SMM), including nonrespiratory complications, vary by viral strain? Findings In this retrospective cohort study of 3129 patients… Click to show full abstract
Key Points Question Does the association between SARS-CoV-2 infection and severe maternal morbidity (SMM), including nonrespiratory complications, vary by viral strain? Findings In this retrospective cohort study of 3129 patients with SARS-CoV-2 infection and 12 504 patients without infection giving birth in a large US health system between March 2020 and January 2022, the risk of SMM associated with SARS-CoV-2 infection was significantly higher during the phase of the pandemic when the Delta variant was predominant (July 2021-November 2021). This association was also noted specifically for both respiratory and nonrespiratory SMM. Meaning These findings highlight the importance of the prevention of SARS-CoV-2 infection in pregnant individuals and the consideration of infection as a risk factor for adverse peripartum maternal outcomes.
               
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