Table 3.
Univariate and Multivariate Predictors of Abnormal Contrast Stress Echocardiography
| |
Univariatea |
Multivariateb |
||||
|---|---|---|---|---|---|---|
| Clinical variable | Chi-square | OR (95% CI) | p | Chi-square | OR (95% CI) | p |
| Age | 0.309 | 0.982 (0.92-1.05) | 0.578 | |||
| BMI, kg/m2 (per 1 unit increase) | 2.986 | 0.960 (0.92-1.01) | 0.084 | 4.18 | 1.06 (1.01-1.12) | 0.04 |
| Smoking | 0.028 | 1.07 (0.51-2.21) | 0.867 | |||
| Diabetes mellitus | 8.359 | 2.93 (1.41-6.07) | 0.004 | 8.73 | 3.6 (1.5-8.3) | 0.003 |
| Family history of CAD | 1.384 | 1.51 (0.76-3.02) | 0.239 | 4.66 | 2.5 (1.1-5.6) | 0.031 |
| Hypertension | 0.713 | 1.34 (0.68-2.69) | 0.398 | |||
| Dyslipidemia | 3.29 | 0.517 (0.25-1.05) | 0.069 | |||
| Hormone therapy | 0.89 | 0.895 (0.43-1.86) | 0.765 | |||
| Positive stress ECG | 8.31 | 4.12 (1.57-10.79) | 0.004 | 7.18 | 5.6 (1.6-20) | 0.007 |
| Coronary calcium score (per 1-unit increase) | 0.103 | 1.00 (0.95-1.01) | 0.748 | |||
If variable had p value<0.20 in unadjusted (univariate) analysis, it was considered in final (multivariate) model.
Final model was adjusted for known predictors of cardiovascular disease, including age, BMI, hypertension, diabetes, family history of CAD, hormone therapy, and dyslipidemia.
CI, confidence interval; ECG, electrocardiogram; OR, odds ratio.