Table 2.

Harrell C Statistics for CVD Event

Variable	Individuals aged 20–49 y	Individuals aged 50–59 y	Individuals aged 60–75 y	Overall
Model including obesity, hypertension, diabetes, dyslipidemia, cigarette smoking, and physical inactivity
Myocardial infarction	0.712	0.694	0.640	0.726
Angina pectoris	0.614	0.596	0.577	0.639
Stroke	0.610	0.598	0.585	0.651
Heart failure	0.620	0.604	0.586	0.655
Model including age, sex, obesity, hypertension, diabetes, dyslipidemia, cigarette smoking, and physical inactivity
Myocardial infarction	0.738	0.717	0.686	0.771
Angina pectoris	0.652	0.601	0.592	0.691
Stroke	0.630	0.615	0.612	0.707
Heart failure	0.647	0.615	0.609	0.708

The discriminative ability of each prediction model, including modifiable risk factors (obesity, hypertension, diabetes, dyslipidemia, cigarette smoking, and physical inactivity) with and without age and sex, was assessed using C statistics (Harrell C statistic). CVD indicates cardiovascular disease.