Table 1 Baseline characteristics of the unmatched (left) and matched (right) groups
Unmatched study population | Matched study population | |||||
|---|---|---|---|---|---|---|
Parameter | SV group * n = 296 | TAR group * n = 138 | p-value | SV group * n = 152 | TAR group * n = 98 | p-value |
Female gender | 85 (29) | 24 (17) | 0.011 | 33 (22) | 21 (21) | 0.96 |
Body mass index (kg/m2) | 28 ± 4.7 | 28 ± 4.8 | 0.31 | 28 ± 5.0 | 28 ± 4.9 | 0.99 |
Age, years | 71 ± 9.2 | 59 ± 10 | < 0.01 | 66 ± 9.6 | 63 ± 9.8 | 0.08 |
NSTEMI | 202 (68) | 95 (69) | 0.90 | 105 (69) | 70 (71) | 0.69 |
STEMI | 94 (32) | 43 (31) | 47 (31) | 28 (29) | ||
Coronary artery disease | ||||||
1 vessel | 11 (3.7) | 1 (0.7) | < 0.01 | 9 (5.9) | 1 (1.0) | 0.12 |
2 vessel | 42 (14) | 25 (18) | 21 (14) | 18 (18) | ||
3 vessel | 243 (82) | 112 (82) | 122 (80) | 79 (81) | ||
Diabetes mellitus | ||||||
Without insulin | 81 (27) | 26 (19) | 0.054 | 42 (27) | 20 (20) | 0.19 |
With insulin | 50 (17) | 15 (11) | 29 (19) | 11 (11) | ||
Chronic kidney disease | ||||||
Stage I (GFR > 89 ml/min) | 3 (1.0) 120 (41) | 0 31 (22.5) | 0.034 | 2 (1.3) 57 (38) | 0 29 (30) | 0.13 |
Stage II (GFR 60-89 ml/min) | 75 (25) | 10 (7.2) | 21 (14) | 9 (9.2) | ||
Stage III (GFR 30-59 ml/min) | 8 (2.7) 11 (3.7) | 1 (0.7) 1 (0.7) | 2 (1.3) | 1 (1.0) 1 (1.0) | ||
Stage IV (GFR 15-29 ml/min) | 11 (3.7) | 0 | 6 (3.9) | 0 | ||
Stage V (GFR < 15 ml/min) | 0.046 | 0.092 | ||||
Chronic dialysis | ||||||
Arterial hypertension | 281 (95) | 129 (95) | 0.35 | 145 (95) | 90 (92) | 0.25 |
Hypercholesterinemia | 195 (66) | 92 (67) | 0.87 | 101 (66) | 67 (68) | 0.75 |
Cerebral arterial occlusive disease | 42 (14) | 10 (14) | 0.24 | 21 (14) | 11 (11) | 0.55 |
Peripheral arterial occlusive disease | ||||||
Fontaine I | 6 (2.0) | 1 (0.7) | 0.078 | 5 (3.2) | 1 (1.0) | 0.46 |
Fontaine II | 31 (10) | 11 (8.0) | 17 (11) | 10 (10) | ||
Fontaine III | 5 (1.7) | 1 (0.7) | 1 (0.7) | 1 (1.0) | ||
Fontaine IV | 7 (2.4) | 1 (0.7) | 2 (1.3) | 1 (1.0) | ||
Chronic obstructive pulmonary disease | 32 (11) | 11 (8.0) | 0.36 | 16 (11) | 8 (8.2) | 0.54 |
PCI before CABG | 32 (11) | 20 (14) | 0.72 | 12 (7.9) | 12 (12) | 0.36 |
Preoperative LVEF | ||||||
<20% | 21 (7.4) | 5 (3.7) | 0.047 | 10 (6.9) | 4 (4.2) | 0.18 |
20–30% | 27 (9.5) | 4 (3.0) | 8 (5.6) | 3 (3.2) | ||
31–50% | 99 (35) | 45 (33) | 57 (40) | 29 (31) | ||
>50% | 137 (48) | 81 (60) | 69 (48) | 59 (62) | ||
EuroSCORE II | 7.2 ± 8.1 | 3.4 ± 4.6 | < 0.01 | 5.3 ± 6.1 | 4.8 ± 5.3 | 0.14 |