ICU Utilization Odds Ratio 95% Confidence Interval P Value
CDC Risk Factor Cohorts      
0 Reference
1 1.68 1.44 1.97 <0.001
2 1.80 1.50 2.16 <0.001
3 or more risk factors 2.18 1.72 2.76 <0.001
ICU Length of stay aIRR 95% Confidence Interval P Value
CDC Risk Factor Cohorts      
0 Reference
1 1.15 1.03 1.28 0.016
2 1.29 1.14 1.46 <0.001
3 or more risk factors 1.34 1.14 1.58 <0.001
Hospital Length of Stay aIRR 95% Confidence Interval P Value
CDC Risk Factor Cohorts      
0 Reference
1 1.16 1.12 1.21 <0.001
2 1.26 1.20 1.33 <0.001
3 or more risk factors 1.35 1.26 1.44 <0.001