Clinical outcomes
| Non-FKB group | FKB group | Unadjusted HR (95% CI) | p Value | Adjusted HR (95% CI) | p Value | |
| Total population (n=1065) | n=736 | n=329 | ||||
| Cardiac death | 5 (0.7) | 3 (0.9) | 1.33 (0.32 to 5.58) | 0.69 | 1.35 (0.29 to 6.13) | 0.70 |
| Cardiac death or MI | 15 (2.0) | 5 (1.5) | 0.74 (0.27 to 2.03) | 0.55 | 0.71 (0.22 to 2.27) | 0.57 |
| TLR | 25 (3.4) | 30 (9.1) | 2.76 (1.62 to 4.69) | <0.001 | 3.63 (2.00 to 6.56) | <0.001 |
| TLR for main vessel | 25 (3.4) | 28 (8.5) | 2.58 (1.50 to 4.42) | 0.001 | 3.39 (1.86 to 6.19) | <0.001 |
| TLR for side branch | 0 (0.0) | 7 (2.1) | – | – | – | – |
| MACE | 36 (4.9) | 33 (10.0) | 2.09 (1.30 to 3.35) | 0.002 | 2.58 (1.52 to 4.37) | <0.001 |
| Propensity-matched population (n=666) | n=444 | n=222 | ||||
| Cardiac death | 3 (0.7) | 1 (0.5) | 0.67 (0.07 to 6.43) | 0.72 | 0.66 (0.07 to 6.48) | 0.72 |
| Cardiac death or MI | 8 (1.8) | 2 (0.9) | 0.50 (0.10 to 2.35) | 0.37 | 0.48 (0.10 to 2.29) | 0.36 |
| TLR | 15 (3.4) | 21 (9.5) | 2.99 (1.51 to 5.92) | 0.001 | 2.84 (1.45 to 5.55) | 0.002 |
| TLR for main vessel | 15 (3.4) | 19 (8.6) | 2.68 (1.33 to 5.38) | 0.004 | 2.71 (1.38 to 5.34) | 0.004 |
| TLR for side branch | 0 (0.0) | 4 (1.8) | – | – | – | – |
| MACE | 20 (4.5) | 21 (9.5) | 2.22 (1.17 to 4.18) | 0.01 | 2.13 (1.15 to 3.95) | 0.02 |
FKB, final kissing ballooning; MACE, major adverse cardiac events; MI, myocardial infarction; TLR, target lesion revascularisation.