Supplementary Table 2 Risk classification for asymptomatic CAD by three prediction models when stenosis > 70% is defined as significant stenosis:

(1) AAC score alone, (2) Multivariate model without AAC score, and (3) Multivariate model with AAC score

(1) Reduced model vs. Full Model: NRI (SE)=0.178 (0.072), P-value=0.014
Patients with Asymptomatic CAD (N=78) / Patients without Asymptomatic CAD (N=295)
Risk in Reduced Model / Risk in Full Model / Risk in Reduced Model / Risk in Full Model
<0.33 / 0.33–0.66 / >0.66 / <0.33 / 0.33–0.66 / >0.66
<0.33 / 33 / 4 / 4 / <0.33 / 281 / 13 / 1
0.33–0.66 / 1 / 4 / 3 / 0.33–0.66 / 7 / 2 / 1
>0.66 / 0 / 0 / 0 / >0.66 / 0 / 0 / 0
(2) AAC Score Alone vs. Full Model: NRI (SE)=0.024 (0.046), P-value=0.610
Patients with Asymptomatic CAD (N=78) / Patients without Asymptomatic CAD (N=295)
Risk in AAC Alone / Risk in Full Model / Risk in AAC Alone / Risk in Full Model / Risk in AAC Alone / Risk in Full Model / Risk in AAC Alone / Risk in Full Model
<0.33 / 0.33–0.66 / >0.66 / <0.33 / 0.33–0.66 / >0.66
<0.33 / 31 / 1 / 0 / <0.33 / 286 / 4 / 0
0.33–0.66 / 3 / 7 / 1 / 0.33–0.66 / 2 / 10 / 0
>0.66 / 0 / 0 / 6 / >0.66 / 0 / 1 / 2
(3) Reduced Model vs. AAC Score Alone: NRI (SE)=0.225 (0.083), P-value=0.007
Patients with Asymptomatic CAD (N=78) / Patients without Asymptomatic CAD (N=295)
Risk in Reduced Model / Risk in AAC Alone / Risk in Reduced Model / Risk in AAC Alone
<0.33 / 0.33–0.66 / >0.66 / <0.33 / 0.33–0.66 / >0.66
<0.33 / 30 / 8 / 3 / <0.33 / 281 / 12 / 2
0.33–0.66 / 2 / 3 / 3 / 0.33–0.66 / 9 / 0 / 1
>0.66 / 0 / 0 / 0 / >0.66 / 0 / 0 / 0

The number in each cell indicates the number of patients

CADcoronary artery disease, AACabdominal aortic calcification, NRInet reclassification improvement, SEstandard error