TABLE 5.
Percent Change (%) in Annual Hospital Admission Rates for ARDS by One Unit Increase in ZIP Code Categories (Low, Mid, High Number of Industries) Per Year (95% CI)
| Categories | All ZIP codes (n = 201,481) |
|---|---|
| Construction | |
| Mid-Low | 5.02 (4.09, 5.95) |
| High-Low | 9.55 (8.61, 10.51) |
| Manufacturing | |
| Mid-Low | 1.32 (0.81, 1.84) |
| High-Low | 4.68 (4.07, 5.31) |
ZIP code categories cutoff: Low: <10 companies/year, Mid: ≥10 and <50 companies/year, High: ≥50 companies/year. Adjusted for proportion of racial groups (whites, blacks, Hispanics, Asians, Native Americans), proportion of females, proportion of adults aged more than 85, median household income, the proportion of ever smokers, a dummy variable for each year, business size, and air pollution (PM2.5, and ozone).