Key compliance and outcome results in the pre- and post-ERAS cohort
| Outcome | Pre-ERAS | Post ERAS | P value | |
| Pre-operative fasting time, median (IQR), hours | Solids | 16.0 (13.0-20.8) | 13.1 (11.7-15.9) | <0.001 |
| Fluids | 11.0 (9.6-13.5) | 3.7 (3.4-4.7) | <0.001 | |
| Multimodal PONV prophylaxis (%) | 64 | 80 | 0.009 | |
| Normothermia (%) | 34 | 56 | <0.001 | |
| Use of EDA (%) | 97 | 98 | 0.74 | |
| Use of abdominal drain (%) | 27 | 17 | 0.013 | |
| Gastric tube at the end of surgery (%) | 6 | 4 | 0.37 | |
| Peri-operative fluid administration, median (IQR), mL/kg/hour | 15.8 (10.8-22.5) | 11.5 (9.0-15.4) | <0.001 | |
| OMEQ, median (IQR), mg | 136 (97-192) | 116 (80-160) | 0.002 | |
| Offered food day 1 (%) | 54 | 68 | 0.007 | |
| Mobilized in room day 0 (%) | 6 | 20 | <0.001 | |
| Thromboembolic prophylaxis (%) | 100 | 100 | NA | |
| LOS in days, mean±SD, days | 5.5±2.7 | 5.6±2.9 | 0.75 | |
| At least one grade 3 complication (%) | 6 | 16 | 0.023 | |
| Readmission rate (%) | 6 | 5 | 0.68 |
EDA, epidural anethesia; ERAS, enhanced recovery after surgery; IQR, Interquartile range; LOS, length of stay; OMEQ, oral morphine equivalents; PONV, post-operative nausea and vomiting.