TABLE 1—
Hierarchical Fall and Burn Models
| Fall Rate Ratio | (95% CIa) | Burn Rate Ratio | (95% CIa) | |
| Individual | ||||
| Age, y | ||||
| < 1 | 2.13 | (1.94, 2.34) | 8.16 | (6.77, 9.83) |
| 1–2 | 1.11 | (1.01, 1.23) | 8.28 | (6.92, 9.92) |
| 3–4 | 0.97 | (0.88, 1.07) | 2.02 | (1.64, 2.49) |
| 5–6 (reference group) | 1.00 | . . . | 1.00 | . . . |
| Gender | ||||
| Male | 1.45 | (1.35, 1.55) | 1.32 | (1.18, 1.48) |
| Female (reference group) | 1.00 | . . . | 1.00 | . . . |
| Zip Code | ||||
| Percentage owner-occupied housingb | 0.94 | (0.90, 0.99) | 0.92 | (0.84, 1.00) |
| Percentage housing built before 1950b | 1.10 | (1.06, 1.15) | 1.11 | (1.04, 1.18) |
| Concentrated poverty | ||||
| High | 1.05 | (0.86, 1.27) | 2.10 | (1.56, 2.83) |
| Middle | 1.02 | (0.83, 1.24) | 1.79 | (1.36, 2.36) |
| Low (reference group) | 1.00 | . . . | 1.00 | . . . |
| African American population | ||||
| High | 1.92 | (1.55, 2.36) | 2.64 | (1.84, 3.79) |
| Middle | 1.43 | (1.17, 1.74) | 1.24 | (0.88, 1.74) |
| Low (reference group) | 1.00 | . . . | 1.00 | . . . |
aWald confidence interval.
bRate ratios per 10% increase in the value of the independent variable.