Racial and Ethnic Differences in COVID-19 Disease Severity Among US Adults in Health Systems Participating in PCORnet®: May 2020-October 2022.

ABSTRACT: This study analyzed COVID-19 disease severity distributions among different age, racial, and ethnic groups for pre-Omicron and Omicron variant periods from May 2020 to October 2022. Disease severity categories were defined by ICD-10-CM diagnostic codes recorded in the electronic health record in the 7 days preceding and 13 days following the SARS-CoV-2 positive laboratory record (index date) and were grouped into 4 mutually exclusive categories: severe complications, high, moderate, and low disease severity. Low severity was defined as the absence of codes for any of the other categories. Among 1,613,706 included patients, there was a lower prevalence of disease severity during the Omicron variant period across all race and ethnicity groups (P<0.001) compared with the pre-Omicron variant p

SUBMITTER: Simon-Friedt B 

PROVIDER: S-EPMC12783355 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature