Table 2.
Hospitalized within 30 days (N=6,258, 9.8%) |
Not hospitalized within 30 days (N=57,753, 90.2%) | |
---|---|---|
RR (95% CI)1 | RR (95% CI)1 | |
Age category | ||
<18 | 1 (ref) | 1 (ref) |
18–39 | 1.19 (1.08, 1.31) | 1.32 (1.29, 1.34) |
40–64 | 1.31 (1.19, 1.44) | 1.47 (1.44, 1.50) |
≥65 | 1.27 (1.15, 1.41) | 1.44 (1.41, 1.47) |
Female | 1.07 (1.05, 1.09) | 1.06 (1.05, 1.06) |
Race/ethnicity | ||
White | 1 (ref) | 1 (ref) |
Asian | 1.00 (0.97, 1.03) | 1.24 (1.22, 1.26) |
Black | 0.99 (0.96, 1.03) | 1.15 (1.13, 1.16) |
Hispanic | 0.98 (0.96, 1.01) | 1.13 (1.11, 1.14) |
Other | 1.00 (0.93, 1.07) | 1.08 (1.06, 1.10) |
BMI (kg/m2) category | ||
Underweight (<18.5) | 0.91 (0.85, 0.98) | 0.97 (0.95, 1.00) |
Normal (18.5–24.9) | 1 (ref) | 1 (ref) |
Obese (25–29.9) | 1.02 (0.99, 1.05) | 1.03 (1.02, 1.04) |
Overweight (30–39.9) | 1.02 (0.99, 1.04) | 1.02 (1.01, 1.03) |
Severely obese (≥40) | 1.07 (1.03, 1.10) | 1.01 (0.99, 1.02) |
Smoking status | ||
Never/passive | 1 (ref) | 1 (ref) |
Quit | 1.00 (0.99, 1.02) | 1.04 (1.03, 1.05) |
Yes | 1.00 (0.96, 1.05) | 0.99 (0.98, 1.01) |
Household median income | ||
<$40,000 | 0.92 (0.89, 0.95) | 1.00 (0.98, 1.01) |
$40,000–$79,999 | 1 (ref) | 1 (ref) |
≥$80,000 | 1.00 (0.99, 1.02) | 0.97 (0.96, 0.98) |
College education | 0.98 (0.96, 1.00) | 0.98 (0.97, 0.99) |
Elixhauser comorbidity index | ||
0 | 1 (ref) | 1 (ref) |
1 | 1.01 (0.99, 1.04) | 1.13 (1.12, 1.14) |
≥2 | 0.99 (0.97, 1.01) | 1.28 (1.26, 1.29) |
1Rate ratio and 95% confidence interval