Table 3.

Logistic regression analysis

Variable	OR (95% CI), P values
	ACS (n=252)	SA (n=112)	CAD (n=364)
ApoB100 IgG	0.52 (0.31 to 0.88), 0.02	0.47 (0.25 to 0.89), 0.02	0.53 (0.33 to 0.84), 0.008
ApoB100 IgM	0.58 (0.34 to 0.98), 0.04	0.85 (0.45 to 1.61), NS	0.66 (0.42 to 1.06), 0.089
HSP60 IgG	0.52 (0.31 to 0.88), 0.02	0.57 (0.3 to 1.07), NS	0.57 (0.35 to 0.92), 0.02
HSP60 IgM	0.58 (0.34 to 0.99), 0.04	0.61 (0.31 to 1.21), NS	0.59 (0.36 to 0.95), 0.031
ApoB IgG+M	0.45 (0.25 to 0.79), 0.01	0.65 (0.32 to 1.29), NS	0.54 (0.33 to 0.89), 0.016
HSP60 IgG+M	0.51 (0.28 to 0.92), 0.02	0.67 (0.33 to 1.39), NS	0.59 (0.35 to 1.01), 0.052
ApoB+HSP60 IgM	0.67 (0.38 to 1.16), NS	0.51 (0.26 to 1), 0.05	0.51 (0.32 to 0.83), 0.007
ApoB HSP60 IgG	0.44 (0.23 to 0.85), 0.014	0.59 (0.3 to 1.16), NS	0.56 (0.35 to 0.91), 0.018
ApoB peptide	0.11 (0.005 to 2.46), NS	0.44 (0.01 to 15.41), NS	0.53 (0.18 to 1.53), NS
HSP60 peptide	0.036 (0.002 to 0.87), 0.04	0.28 (0.03 to 2.73), NS	0.44 (0.22 to 0.86), 0.016
ApoB+HSP60 peptide	0.187 (0.039 to 0.88), 0.03	0.73 (0.28 to 1.9), NS	0.7 (0.52 to 0.95), 0.021

The antibody levels were divided into tertiles. The association of the antibody level in the third tertile in comparison to the first tertile was assessed using logistic regression analysis taking age, gender, body mass index (BMI), waist-hip ratio (WHR), current smoking, hypertension and diabetes as covariates.P value <0.05 was considered significant.

ACS, acute coronary syndrome; ApoB, apolipoprotein B; CAD, coronary artery disease; HSP, heat shock protein; NS, not significant; SA, stable angina.