Table 3 Comparison of multivariate logistic regression models
Variables Model 4: Morise et al. 1997 Model 5: Shaw et al. 1998
No calcium score Calcium score No calcium score Calcium score
OR 95% CI OR 95% CI OR 95% CI OR 95% CI
ln CTCSa (CT calcium score)  1.87 1.50, 2.31  1.86 1.51, 2.30
Intercept
Age  1.05 1.01, 1.09 0.99 0.95, 1.03  1.05 1.02, 1.08 0.98 0.95, 1.02
Male sex  3.15 1.29, 7.70 1.37 0.48, 3.95  3.42 1.74, 6.74 2.05 0.94, 4.45
Typical pain  5.56 2.94, 10.51  4.82 2.36, 9.86  5.50 2.96, 10.21  4.91 2.44, 9.90
Smoking 1.53 0.72, 3.24 1.03 0.44, 2.39 1.63 0.80, 3.30 1.04 0.47, 2.27
Dyslipidaemia  3.20 1.29, 7.95 1.80 0.62, 5.22  3.04 1.63, 5.66 1.95 0.96, 3.94
Diabetes 2.66 0.98, 7.26 2.01 0.61, 6.61  2.85 1.10, 7.39 2.24 0.74, 6.75
Age–smoking
Age–dyslipidaemia
Sex–smoking
Age–sex
Oestrogen 0.78 0.33, 1.86 0.53 0.19, 1.48
Hypertension 1.83 0.93, 3.60 1.31 0.62, 2.79
Family History 2.02 0.77, 5.29 1.14 0.38, 3.39
Dyslipidaemia–family history 0.74 0.21, 2.60 1.15 0.28, 4.82
Obesity 0.88 0.31, 2.48 0.65 0.20, 2.12
BMI 0.99 0.88, 1.13 1.05 0.91, 1.22
 
AUCb 0.840 0.792, 0.889 0.898 0.859, 0.936 0.833 0.783, 0.883 0.899 0.861, 0.937
LR testc  p < 0.001  p < 0.001
Odds ratios (ORs) in bold typeface are statistically significant
aNatural logarithm of CTCS + 1
bArea under the receiver operating characteristic curve
cLikelihood ratio test comparing model without CTCS and model including CTCS