Table 2.
Logistic regression model predicting referral to revascularization
| Variable | β coefficient (95% CI) | χ2 | P-value |
|---|---|---|---|
| Intercept | −3.48 (−3.68 to −3.28) | 1177.43 | <0.0001 |
| Family history of CAD | 0.1848 (0.03–0.34) | 5.6449 | 0.0175 |
| DF pre-test probablility | 0.3749 (0.18–0.57) | 14.7235 | 0.0001 |
| Obstructive CAD | – | 1110.59 | <0.0001 |
| Normal | 1 | Reference | Reference |
| Non-obstructive | −0.3437 (−0.57 to −0.12) | 8.9508 | 0.0028 |
| Obstructive CAD | 2.8367 (2.64–3.03) | 792.3851 | <0.0001 |
| DF probability vs. Obstructive CAD | – | 6.7387 | 0.0344 |
| Normal vs. DF_probability | 1 | Reference | Reference |
| Non-obstructive vs. DF_probability | −0.2872 (−0.51 to −0.06) | 6.2515 | 0.0124 |
| Obstructive CAD vs. DF_probability | −0.1778 (−0.38 to 0.02) | 3.1141 | 0.0776 |