Heterogeneity in COVID-19 patient volume, characteristics and outcomes across US Department of Veterans Affairs facilities: an observational cohort study.
Dawn M BravataLaura J MyersAnthony J PerkinsSalomeh KeyhaniYing ZhangAlan J ZillichAndrew DysangcoReese LindseyDev SharmithaJennifer MyersCharles AustinAli SexsonGreg ArlingPublished in: BMJ open (2021)
Marked heterogeneity in COVID-19 patient volume, characteristics and mortality were observed across VA facilities nationwide. Differences in patient characteristics accounted for the majority of explained variation in mortality across sites. Variation in unadjusted COVID-19 mortality across facilities or nations should be considered with caution.