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. Author manuscript; available in PMC: 2015 Oct 24.
Published in final edited form as: Med Care. 2011 Oct;49(10):940–947. doi: 10.1097/MLR.0b013e318229360e

Table 4.

Calibration of the different scoring systems in the validation sample

Scoring system Calibration-in-the large: Calibration intercept (P-value) Calibration slope (95% CI)
Mortality Risk Score 0.0066 (P = 0.1998) 0.996 (0.990, 1.002)
Age + sex + ADG Score 0.0063 (P = 0.2141) 0.996 (0.990, 1.002)
Age + sex + ADG Score + Age*ADG Score 0.0064 (P = 0.2082) 0.996 (0.990, 1.002)
Age + sex + ADG Score; Cubic smoothing splines for Age and ADG Score 0.0062 (P = 0.2221) 0.996 (0.990, 1.002)
Age + sex + Charlson score 0.0062 (P = 0.2243) 0.995 (0.989, 1.001)
Age + sex + Charlson score + Age*Charlson score 0.0064 (P = 0.2093) 0.994 (0.988, 1.000)
Age + sex + Charlson score; Cubic smoothing splines for Age 0.0063 (P = 0.2235) 0.995 (0.990, 1.001)
Age + sex + Elixhauser score 0.0062 (P = 0.2302) 0.995 (0.989, 1.001)
Age + sex + Elixhauser score + Age* Elixhauser score 0.0064 (P = 0.2102) 0.994 (0.988, 1.000)
Age + sex + Elixhauser score; Cubic smoothing splines for Age 0.0062 (P = 0.2303) 0.995 (0.990, 1.001)