Table 2:
Procedural characteristics
| Factor | On-pump | Off-pump | 95% CI |
|---|---|---|---|
| N | 725 | 128 | |
| IABP use (%) | 22 (3.0) | 3 (2.3) | 0.14 to 2.61 |
| Cardioplegia, n (%) | 690 (95.2) | 0 | |
| Hypothermia, n (%) | 585 (80.7) | 0 | |
| Complete revascularization, n (%) | 464 (64.0) | 81 (63.3) | 0.65 to 1.47 |
| Incomplete revascularization in inferolateral wall, n (%) | 205 (28.8) | 43 (33.6) | 0.81 to 1.90 |
| Bilateral IMA use, n (%) | 189 (26.1) | 47 (36.7) | 1.08 to 2.48 |
| Left IMA use, n (%) | 703 (97.0) | 127 (99.2) | 0.63 to 165.2 |
| Right IMA use, n (%) | 192 (26.5) | 47 (36.7) | 1.06 to 2.43 |
| Jump graft use, n (%) | 225 (31.2) | 40 (31.2) | 0.65 to 1.53 |
| Number of lesions | 4 (3, 6) | 4 (3, 5) | −0.03 to 0.65 |
| Number of total conduits | 3 (2, 3) | 3 (2, 3) | 0.06 to 0.33 |
| Number of arterial conduits | 1 (1, 2) | 1 (1, 2) | −0.27 to −0.03 |
| Number of venous conduits | 1 (1, 2) | 1 (0, 2) | 0.17 to 1.07 |
| Operation time (min) | 205 (165, 245) | 183 (156, 225) | 5.44 to 29.9 |
Values are represented as median (1st, 3rd interquartile range). To compare the difference between 2 groups, a 95% CI of odd’s ratio for the categorical values or that of mean differences between groups for continuous values was presented. The number (proportion) of missing data values for each variable is as follows: number of lesions 5 (0.6%), number of total conduits 1 (0.1%) and complete revascularization 13 (0.5%).
CI: confidence interval; IABP: intra-aortic balloon pump; IMA: internal mammalian artery.