Paediatr Perinat Epidemiol. 2022 Jan 25. doi: 10.1111/ppe.12865. Online ahead of print.
ABSTRACT
BACKGROUND: COVID-19 disproportionately affects racial and ethnic minority populations, but comparatively few epidemiologic studies have been performed on children as compared to adults.
OBJECTIVES: To characterise factors associated with SARS-CoV-2 infections amongst children from Chicago, Illinois, USA.
METHODS: A test-negative case-control study of children tested for SARS-CoV-2 (0-18 years) at three medical centres of the Rush University System for Health between 12 March and 7 December 2020 was conducted. Of 8462 children, 1,302 tested positive by real-time PCR or rapid (NAAT) testing. Infection with SARS-CoV-2 was analysed as the outcome variable; effects of predictors were assessed by logistic regression analysis. A Paediatric Risk Score Index with a concordance index of 72% of accuracy was created to predict SARS-CoV-2 infection.
RESULTS: The median age of cases was 13 years. On multivariable analysis, factors associated with SARS-CoV-2 infection were being Hispanic/Latinx (odds ratio [OR] 2.45, 95% CI 1.99, 3.03); Black/African-American (OR 1.31, 95% CI 1.03, 1.66); overweight/obese (OR 1.27, 95% CI 1.02, 1.58); older age, 10-14 years (OR 1.70, 95% CI 1.39, 2.08), 15-18 years (OR 2.06, 95% CI 1.71, 2.47); from households with income <$50,000 (OR 1.36, 95% CI 1.17, 1.60); or residing in predominantly minority neighbourhoods (OR 1.45, 95% CI 1.17, 1.80). Infections were higher during the second “fall” wave (5 October 2020 onward) compared with the first “spring” wave (OR 2.30, 95% CI 2.01, 2.63). Within Chicago, racial/ethnic minority neighbourhoods had striking positivity rates, as high as 39% in majority Hispanic/Latinx West Lawn neighbourhood. In suburban Chicago, highest positivity rates (20%-28%) were in zip codes within Hispanic/Latinx communities.
CONCLUSIONS: Infection with SARS-CoV-2 is more likely amongst children of Hispanic/Latinx ethnicity, Black/African-American race, aged 10-18 years, who are overweight/obese, from lower income households, and from minority neighbourhoods. Future studies should focus on the prevention of COVID-19 infection in children of highest risk.
PMID:35076946 | DOI:10.1111/ppe.12865
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