TABLE 3—
Adjusted Associations Between Geographic Index and Time to Reutilization (Readmission to Hospital or Emergency Department Revisit) Among Children Hospitalized for Asthma: Greater Cincinnati, OH, 2008–2009
| Geographic Risk Index | Model 1,a Unadjusted HR (95% CI) | Model 2,b Adjusted HR (95% CI) | Model 3,c Adjusted HR (95% CI) | 
| Low (0 risks; Ref) | 1.00 | 1.00 | 1.00 | 
| Medium (1 risk) | 1.30 (0.90, 1.88) | 1.14 (0.76, 1.71) | 1.13 (0.75, 1.71) | 
| High (2–3 risks) | 1.83 (1.37, 2.44) | 1.51 (1.06, 2.14) | 1.49 (1.03, 2.15) | 
Note. CI = confidence interval; HR = hazard ratio.
Included unadjusted geographic index.
Included index and race (32.1% decrease in parameter estimate for those at high geographic risk, compared with model 1).
Included index, race, age, gender, and insurance (34.3% decrease in parameter estimate for those at high geographic risk, compared with model 1).