| All patients n = 4714 | Weekday n = 4661 | Weekend n = 53 | p value weekday vs. weekend | 7 am-4 pm n = 2624 | After 4 pm n = 65 | p value 7 am-4 pm vs. after 4 pm |
---|---|---|---|---|---|---|---|
Urgent/emergent surgery | 21% | 20% | 91% | < 0.0001 | 15% | 68% | < 0.0001 |
Number grafts | 3 ± 1 | 3 ± 1 | 3 ± 1 | 0.15 | 3.1 ± 0.9 | 2.9 ± 1 | 0.18 |
bypass time (min) | 123 ± 45 | 123 ± 45 | 111 ± 34 | 0.16 | 123 ± 45 | 112 ± 47 | 0.055 |
ischemic time (min) | 80 ± 30 | 80 ± 30 | 73 ± 24 | 0.25 | 80 ± 30 | 74 ± 33 | 0.14 |
Operative mortality | 2.6% | 2.5% | 9.4% | 0.01 | 2.2% | 6.2% | 0.04 |
Stroke | 1.6% | 1.6% | 1.9% | 0.59 | 1.6% | 6% | 0.02 |
Reoperation for bleeding | 3% | 3% | 4% | 0.66 | 2% | 11% | < 0.0001 |
Ventilated > 48 hours | 7% | 7% | 19% | 0.001 | 7% | 20% | < 0.0001 |
Any complication | 12% | 12% | 28% | < 0.0001 | 13% | 28% | < 0.0001 |