CI: Confidence Interval; HR: Hazard ratio; SES: Socioeconomic status; Δ: Difference. aSex- and year of birth-adjusted. bHeavy drinking is defined as consuming ≥75 g of ethanol per week; obesity as bod
Back-calculation model inputs: Estimated reactivation rates (per 100 person-years) by medical risk factors and demographic characteristics, stratified by nativity (U.S. birth or non-US birth).
Final multivariate logistic regression model of explanatory variables for infection with pandemic influenza (pIV) controlling for illness week (below 14 years) and for illness week and state of reside