Baseline patient characteristics
| Total population | Propensity-matched population | |||||
| Non-FKB group (n=736) | FKB group (n=329) | p Value | Non-FKB group (n=444) | FKB group (n=222) | p Value | |
| Age, years | 62.3±10.7 | 62.1±10.0 | 0.71 | 62.5±10.6 | 62.4±10.3 | 0.93 |
| Male | 489 (66.4) | 236 (71.7) | 0.09 | 302 (68.0) | 159 (71.6) | 0.34 |
| Clinical presentation | ||||||
| Stable angina | 303 (41.2) | 165 (50.2) | 0.009 | 202 (45.4) | 109 (49.0) | 0.51 |
| Unstable angina | 292 (39.7) | 122 (37.1) | 158 (35.6) | 77 (34.7) | ||
| NSTEMI | 91 (12.4) | 32 (9.7) | 54 (12.2) | 27 (12.2) | ||
| Convalescent STEMI | 50 (6.8) | 10 (3.0) | 30 (6.8) | 9 (4.1) | ||
| Diabetes mellitus | 246 (33.4) | 100 (30.4) | 0.33 | 144 (32.4) | 70 (31.5) | 0.82 |
| Hypertension | 447 (60.7) | 190 (57.8) | 0.36 | 263 (59.2) | 126 (56.8) | 0.54 |
| Dyslipidaemia | 241 (32.7) | 90 (27.4) | 0.08 | 118 (26.6) | 57 (25.7) | 0.80 |
| Current smoker | 177 (24.0) | 79 (24.0) | 0.99 | 104 (23.4) | 56 (25.2) | 0.61 |
| Previous myocardial infarction | 58 (7.9) | 26 (7.9) | 0.99 | 31 (7.0) | 15 (6.8) | 0.91 |
| Previous cerebrovascular event | 38 (5.2) | 23 (7.0) | 0.24 | 19 (4.3) | 13 (5.9) | 0.37 |
| Chronic renal failure | 31 (4.2) | 7 (2.1) | 0.09 | 14 (3.2) | 6 (2.7) | 0.75 |
| Left ventricular ejection fraction, %* | 59.4±11.9 | 59.1±10.8 | 0.74 | 60.2±11.6 | 58.8±11.2 | 0.20 |
Data are presented as mean±SD or n (%).
↵* Left ventricular ejection fraction was available for 753 patients.
FKB, final kissing ballooning; NSTEMI non-ST-segment elevation myocardial infarction; STEMI, ST-segment elevation acute myocardial infarction.