Metadata about: Importance: Despite emerging reports of poor COVID-19 outcomes among African Americans, data on race and ethnic susceptibility to SARS-CoV-2 infection are limited. Objective: To determine socio-demographic factors associated with higher likelihood of SARS-CoV-2 infection. To explore mediating pathways for race disparities in the SARS-CoV-2 pandemic. Design: Cross sectional analysis of COVID-19 Surveillance and Outcomes Registry (CURATOR). Multivariable logistic regression models were fitted to provide likelihood estimates (adjusted Odds Ratios: aOR, 95% confidence intervals: CI) of positive SARS-CoV-2 test. Structural Equation Modeling (SEM) framework was utilized to explore three mediation pathways (low income, high population density, high comorbidity burden) for association between African American race and SARS-CoV-2 infection. Setting: A large healthcare system comprising of one central tertiary care, seven large community hospitals and an expansive ambulatory and emergency care network in the Greater Houston area. Participants: Individuals of all ages, races, ethnicities and sex tested for SARS-CoV-2. Exposure: Socio-demographic (age, sex, race, ethnicity, household income, residence population density) and comorbidity (hypertension, diabetes, obesity, cardiac disease) factors. Main Outcome: Positive reverse transcriptase polymerized chain reaction test for SARS-CoV-2. Results: Among 4,513 tested individuals, 754 (16.7%) tested positive. Overall mean (SD) age was 50.6 (18.9) years, 62% females and 26% were African American. African American race was associated with higher comorbidity burden, lower socio-economic status, and higher population density residence. In the fully adjusted model, African American race (vs. White; aOR, CI: 1.84, 1.49-2.27) and Hispanic ethnicity (vs. non-Hispanic; aOR, CI: 1.70, 1.35-2.14) had a higher likelihood of infection. Older individuals and males were also at a higher risk of SARS-CoV-2 infection. The SEM framework demonstrated a statistically significant (p = 0.008) indirect effect of African American race on SARS-CoV-2 infection mediated via a pathway that included residence in densely populated zip code. Conclusions and Relevance: There is strong evidence of race and ethnic disparities in the SARS-CoV-2 pandemic potentially mediated through unique social determinants of health.

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