Table 6.
Cardiovascular risk factors that are having a significant effect on CAD. Logistic regression model with backward likelihood ratio method. B: the logistic regression coefficient; SE: standard error; Wald: statistic value of Wald; Df: degree of freedom; Sig.: significant value; Exp(B): exponential of B; 95% CI: 95% confidence interval.
| Variable | B | SE | Wald | Df | Sig. | Exp(B) | 95% CI for Exp(B) | |
| Lower | Upper | |||||||
| Smoking | 1.28 | 0.39 | 11.00 | 1 | 0.001 | 3.61 | 1.69 | 7.72 |
| Hypertension | 1.13 | 0.25 | 19.84 | 1 | 0.000 | 3.09 | 1.88 | 5.08 |
| Diabetes | 0.92 | 0.28 | 10.65 | 1 | 0.001 | 2.50 | 1.44 | 4.34 |
| Dyslipidemia | 1.38 | 0.32 | 18.27 | 1 | 0.000 | 3.99 | 2.12 | 7.53 |
| Hyperhomocysteinaemia | 1.07 | 0.41 | 6.93 | 1 | 0.009 | 2.93 | 1.32 | 6.51 |
| MTHFR C677T* Smoking | — | — | 14.47 | 2 | 0.001 | — | — | — |
| MTHFR 677CT* Smoking | 0.02 | 0.62 | 0.00 | 1 | 0.979 | 1.02 | 0.30 | 3.44 |
| MTHFR 677TT* Smoking | −4.45 | 1.19 | 13.92 | 1 | 0.000 | 0.01 | 0.00 | 0.12 |
| Dyslipidemia* Hyperhomocysteinaemia | −1.95 | 0.56 | 11.95 | 1 | 0.001 | 0.14 | 0.05 | 0.43 |
| Hyperhomocysteinaemia* MTHFR C677T | 12.10 | 2 | 0.002 | — | — | — | — | — |
| Hyperhomocysteinaemia* MTHFR 677CT | 1.07 | 0.52 | 4.30 | 1 | 0.038 | 2.92 | 1.06 | 8.06 |
| Hyperhomocysteinaemia* MTHFR 677TT | 3.55 | 1.12 | 10.14 | 1 | 0.002 | 34.96 | 3.92 | 311.69 |
| Constant | −1.62 | 0.24 | 47.01 | 1 | 0.000 | — | — | — |
*The between variables interactive effects.