Table 2

Risk index prediction models

ModelOR (95% CI)P valueC-statistic
Derivation set
 Adjusted<0.00010.880
  Risk index1.08 (1.08 to 1.09)<0.0001
  DNR/DNI code3.50 (3.05 to 4.01)<0.0001
  White0.69 (0.55 to 0.85)0.0006
  Married1.16 (1.02 to 1.31)0.0215
 Unadjusted index1.09 (1.08 to 1.09)<0.00010.866
Validation set
 Adjusted<0.00010.866
  Risk index1.08 (1.07 to 1.08)<0.0001
  DNR/DNI code3.05 (2.50 to 3.72)<0.0001
  White1.18 (0.81 to 1.71)0.3877
  Married1.10 (0.92 to 1.32)0.2901
 Unadjusted index1.08 (1.08 to 1.09)<0.00010.834
  • DNR/DNI, do not resuscitate/do not intubate.