Description of Neighborhood Cohort Used to Estimate the Incidence of Pediatric Hospitalizations Attributable to Influenza

Total population (all ages)348 411
Total population <18 ya85 135
Median household income within each zip code (range), $22 808–111 683
Percent families below poverty level23
Percent black race among children <18 y77
  • Neighborhood cohort was defined by home residence within 9 contiguous zip-code areas with >70% acute asthma exacerbations admitted to the study hospital (CHOP) for asthma.

  • a Total population <18 years of age based on the 2000 US Census.