Table 5 .
Uni- and multivariable linear regression analysis for postoperative LOS
| Univariable beta-coefficient (95% CI) | p-value | Multivariable beta-coefficient (95% CI) | p-value | |
|---|---|---|---|---|
| Gender (female) | 2.26 (−2.31–6.84) | 0.331 | ||
| Age | 0.16 (0.03–0.29) | 0.018 | ||
| P-POSSUM | 0.53 (0.38–0.68) | <0.001 | 0.43 (0.27–0.59) | <0.001 |
| ASA grade | 5.99 (3.16–8.82) | <0.001 | 2.54 (0.27–0.56) | <0.001 |
| Bowel resection | 10.63 (4.63–16.62) | <0.001 | 6.50 (0.62–12.38) | 0.030 |
| TTS | 0.18 (−0.44–0.80) | 0.572 | ||
| <24hr to surgery | −0.39 (−5.29–4.51) | 0.875 | ||
| Surgical approach | ||||
| Open | 1 | 1 | ||
| Laparoscopic | −13.22 (−18.70 to −7.75) | <0.001 | −8.51 (−13.87 to −3.16) | 0.002 |
| Converted | −7.54 (−13.91 to −1.17) | 0.020 | −4.90 (−10.88–1.08) | 0.108 |
ASA = American Society of Anaesthesiology; CI = confidence interval; LOS = length of stay; P-POSSUM = Portsmouth – Physiological and Operative Severity Score for the enuMeration of Mortality and morbidity; TTS = time to surgery