Table 4.

Comparisons of the Odds Ratio of the 2 Statin Eligibility Guidelines for the Prediction of CAC Score Progression

Guidelines Applied	C Statistic (95% CI)	OR (95% CI)	P Value	P Valuea
Statin eligible by ATP III guidelines	0.56 (0.53–0.59)	2.00 (1.49–2.68)	<0.001	0.0006
Statin eligible by ACC/AHA guidelines	0.62 (0.59–0.64)	2.73 (2.07–3.61)	<0.001

ACC/AHA indicates American College of Cardiology/American Heart association; ATP III, Adult Treatment Panel III; CAC, coronary artery calcification; OR, odds ratio.

^a P value between ATP III guidelines and ACC/AHA guidelines. P value is calculated by comparison of C statistic using the method of DeLong et al.¹⁰