Table 3

Independent characteristics associated with primary outcome (multiple Cox regression)

Yale CORE modelKrumholz modelCharlson model
Variables(Model χ2=35.7,
c-statistics=0.61)
HR (95% CI), p Value
(Model χ2=25.1,
c-statistics=0.60)
HR (95% CI), p Value
(Model χ2=16.6,
c-statistics=0.57)
HR (95% CI), p Value
Age (per 1-year increase)1.00 (0.98 to 1.01), 0.691.00 (0.98 to 1.01), 0.610.99 (0.98 to 1.01), 0.40
Male sex1.29 (0.96 to 1.73), 0.101.23 (0.91 to 1.66), 0.171.23 (0.91 to 1.66), 0.19
Score 1: Yale CORE score (per 1% increase)1.07 (1.04 to 1.10), <0.01
Score 2: Krumholz score (per 1% increase)1.29 (1.10 to 1.51), <0.01
Score 3: Charlson comorbidity index (per 1% increase)1.05 (0.98 to 1.13), 0.19
Discharge to nursing home1.41 (0.84 to 2.38), 0.201.42 (0.84 to 2.39), 0.191.40 (0.82 to 2.38), 0.22
Receiving long-term care insurance1.62 (1.17 to 2.24), <0.011.59 (1.15 to 2.19), <0.011.63 (1.17 to 2.25), <0.01
  • The significance of bold characters is p<0.01.