Table 3.
Clinical Outcomes at 5 Years
| QFR ≤0.80 (n=35) | QFR >0.80 (n=582) | HR (95% CI) | P Value | |
|---|---|---|---|---|
| Cardiac death, non–TV‐MI, non‐TVR, n (%) | 22 (62.9) | 72 (12.5) | 7.33 (4.54–11.83) | <0.001 |
| Cardiac death, MI (any), revascularization (any), n (%) | 22 (62.9) | 108 (18.8) | 4.68 (2.96–7.41) | <0.001 |
| Cardiac death or MI (any), n (%) | 10 (29.6) | 55 (9.7) | 3.58 (1.82–7.02) | <0.001 |
| Cardiac death, TV‐MI, TVR, n (%) | 13 (37.5) | 74 (12.9) | 3.50 (1.94–6.30) | <0.001 |
| Death, n (%) | 4 (11.4) | 54 (9.3) | 1.28 (0.46–3.54) | 0.631 |
| Cardiac death, n (%) | 3 (8.6) | 27 (4.7) | 1.92 (0.58–6.33) | 0.284 |
| Non–TV‐MI, n (%) | 4 (12.8) | 17 (3.1) | 4.38 (1.47–13.02) | 0.008 |
| Non‐TVR, n (%) | 19 (58.6) | 43 (7.7) | 10.99 (6.39–18.91) | <0.001 |
| Revascularization (any), n (%) | 19 (58.6) | 85 (15.0) | 5.17 (3.14–8.52) | <0.001 |
| MI (any), n (%) | 7 (22.4) | 32 (5.8) | 4.38 (1.93–9.92) | <0.001 |
| MI Q wave, n (%) | 3 (9.2) | 9 (1.6) | 5.96 (1.61–22.03) | 0.007 |
| MI non–Q wave, n (%) | 5 (16.4) | 25 (4.6) | 3.88 (1.49–10.15) | 0.006 |
| Stroke (any), n (%) | 3 (9.0) | 12 (2.2) | 4.37 (1.23–15.50) | 0.022 |
Depicted are number of patients (percentage) and hazard ratios (HRs) with 95% CI from univariable Cox proportional hazards regressions with P values. MI indicates myocardial infarction; non–TV‐MI, nontarget vessel myocardial infarction; non‐TVR, nontarget vessel revascularization; QFR, quantitative flow ratio; TV‐MI, target vessel myocardial infarction; and TVR, target vessel revascularization.