Table 3.

Model Discrimination and Calibration for SCD, Non-Sudden Cardiac Death, and All-cause Mortality using the 10 Year Risk Prediction Equation

	ARIC	CHS
Sudden Cardiac Death
SCD Prediction Score
C-statistic (95% CI)	0.820 (0.785, 0.854)	0.745 (0.701, 0.789)
Calibration chi-square (p-value)	11.46 (0.25)	13.74 (0.088)
ACC/AHA CVD risk equation
C-statistic (95% CI)	0.808 (0.772, 0.844)	0.743 (0.700, 0.768)
Calibration chi-square (p-value)	851.0 (<0.001)	24.71 (0.003)
Non-Sudden Cardiac Death
SCD Prediction Score
C-statistic (95% CI)	0.818 (0.784, 0.853)	0.720 (0.693, 0.747)
Calibration chi-square (p-value)	20.90 (0.01)	45.17 (<0.001)
ACC/AHA CVD risk equation
C-statistic (95% CI)	0.823 (0.791, 0.856)	0.753 (0.728, 0.779)
Calibration chi-square (p-value)	800.6 (<0.001)	34.72 (<0.001)
All-Cause Mortality
SCD Prediction Score
C-statistic (95% CI)	0.731 (0.715, 0.747)	0.681 (0.666, 0.696)
Calibration chi-square (p-value)	6058 (<0.001)	91.40 (<0.001)
ACC/AHA CVD risk equation
C-statistic (95% CI)	0.728 (0.712, 0.743)	0.692 (0.678, 0.707)
Calibration chi-square (p-value)	34.59 (<0.001)	68.32 (<0.001)