Unadjusted and adjusted ORs of outcome measures for day of week of operation
| Unadjusted | Adjusted | |||
|---|---|---|---|---|
| OR (95% CI) | p Value | OR (95% CI) | p Value | |
| Initial laparoscopic approach | ||||
| Monday | Reference | |||
| Tuesday | 0.88 (0.67 to 1.16) | 0.370 | 0.85 (0.59 to 1.22) | 0.372 |
| Wednesday | 1.06 (0.80 to 1.40) | 0.693 | 0.97 (0.67 to 1.39) | 0.852 |
| Thursday | 0.99 (0.75 to 1.32) | 0.970 | 0.85 (0.59 to 1.23) | 0.385 |
| Friday | 0.96 (0.72 to 1.27) | 0.760 | 1.05 (0.72 to 1.52) | 0.817 |
| Saturday | 0.91 (0.68 to 1.20) | 0.493 | 0.81 (0.56 to 1.17) | 0.271 |
| Sunday | 0.70 (0.53 to 0.94) | 0.016 | 0.47 (0.32 to 0.69) | <0.001 |
| Laparoscopic converted | ||||
| Monday | Reference | |||
| Tuesday | 0.86 (0.49 to 1.51) | 0.595 | 0.87 (0.47 to 1.59) | 0.649 |
| Wednesday | 1.17 (0.69 to 1.99) | 0.558 | 1.06 (0.61 to 1.87) | 0.831 |
| Thursday | 0.93 (0.53 to 1.62) | 0.803 | 0.88 (0.49 to 1.61) | 0.685 |
| Friday | 1.51 (0.89 to 2.56) | 0.123 | 1.56 (0.88 to 2.74) | 0.122 |
| Saturday | 1.38 (0.81 to 2.36) | 0.238 | 1.26 (0.71 to 2.23) | 0.435 |
| Sunday | 1.44 (0.82 to 2.51) | 0.204 | 1.44 (0.80 to 2.62) | 0.228 |
| Normal histopathology | ||||
| Monday | Reference | |||
| Tuesday | 0.92 (0.67 to 1.26) | 0.600 | 0.85 (0.61 to 1.20) | 0.360 |
| Wednesday | 0.76 (0.55 to 1.05) | 0.097 | 0.73 (0.52 to 1.02) | 0.065 |
| Thursday | 1.17 (0.86 to 1.60) | 0.308 | 1.12 (0.81 to 1.55) | 0.505 |
| Friday | 0.98 (0.71 to 1.36) | 0.912 | 0.97 (0.69 to 1.36) | 0.850 |
| Saturday | 0.96 (0.70 to 1.33) | 0.818 | 0.90 (0.64 to 1.26) | 0.535 |
| Sunday | 0.65 (0.46 to 0.93) | 0.018 | 0.62 (0.42 to 0.90) | 0.012 |
| Complex* histopathology | ||||
| Monday | Reference | |||
| Tuesday | 0.88 (0.66 to 1.19) | 0.404 | 1.00 (0.73 to 1.38) | 0.999 |
| Wednesday | 0.90 (0.67 to 1.20) | 0.470 | 0.94 (0.69 to 1.30) | 0.705 |
| Thursday | 0.83 (0.62 to 1.21) | 0.228 | 0.89 (0.64 to 1.22) | 0.465 |
| Friday | 0.84 (0.62 to 1.14) | 0.257 | 0.86 (0.62 to 1.20) | 0.371 |
| Saturday | 0.97 (0.72 to 1.31) | 0.826 | 0.98 (0.71 to 1.36) | 0.905 |
| Sunday | 0.63 (0.46 to 0.88) | 0.007 | 0.65 (0.46 to 0.93) | 0.018 |
| 30-day adverse events | ||||
| Monday | Reference | |||
| Tuesday | 0.81 (0.54 to 1.19) | 0.279 | 0.84 (0.56 to 1.26) | 0.393 |
| Wednesday | 1.11 (0.77 to 1.61) | 0.578 | 1.11 (0.76 to 1.62) | 0.599 |
| Thursday | 0.65 (0.43 to 0.98) | 0.039 | 0.68 (0.45 to 1.04) | 0.077 |
| Friday | 1.03 (0.70 to 1.52) | 0.877 | 0.99 (0.66 to 1.49) | 0.974 |
| Saturday | 0.86 (0.57 to 1.28) | 0.444 | 0.87 (0.58 to 1.31) | 0.510 |
| Sunday | 0.98 (0.65 to 1.46) | 0.912 | 1.00 (0.66 to 1.51) | 0.999 |
Adjustment in multivariable models was made for age, gender and ASA score.
*Perforation, gangrene and/or abscess.
ASA, American Society of Anaesthesiologists.