Table 4.
Subgroup analysis – Emergency surgery only
| Variables | Total (n = 277) | Body mass index (BMI) in 2 categories (kg/m2) | |||||
|---|---|---|---|---|---|---|---|
| BMI < 30 (n = 99) | BMI ≥ 30 (n = 178) | OR unadjusted (95%CI) | p-value (unadjusted) | OR adjusted* (95%CI) | p-value (adjusted*) | ||
| BMI (median, IQR) | 26.7 (7.7) | ||||||
| Any intra-op Complications (yes, %) | 76 (27) | 46 (24) | 30 (36) | 1.82 (1.04–3.18) | 0.04 | 2.18 (1.19–3.97) | 0.01 |
| Any post-op complications**(yes, %) | 35 (13) | 27 (14) | 8 (10) | 0.66 (0.28–1.52) | 0.33 | 0.66 (0.27–1.61) | 0.36 |
| Conversion rate (yes, %) | 39 (25) | 29 (28) | 10 (20) | 0.65 (0.29–1.46) | 0.29 | 0.57 (0.24–1.34) | 0.20 |
| Laparoscopic, including conversion (yes, %) | 154 (56) | 104 (54) | 50 (60) | ||||
| Open (yes,%) | 123 (44) | 90 (46) | 33 (40) | ||||
| ICU admission (yes, %) | 100 (36) | 69 (36) | 31 (37) | 1.08 (0.63–1.84) | 0.78 | 1.25 (0.66–2.35) | 0.49 |
| Length of ICU admission in days (mean ± sd) | 3.2 ± 3.7 | 3.5 ± 4.3 | 2.5 ± 1.4 | 0.30 | 0.24 | ||
| 30-days mortality (yes,%) | 3 (1) | 2 (1) | 1 (1) | 0.78 | 0.89 | ||
| Length of hospital day in days (mean ± sd) | 13.2 ± 11.1 | 13.7 ± 11.4 | 12.0 ± 10.3 | 0.26 | 0.45 | ||
*Adjusted to age, sex, ASA, smoking, operation type, surgical approach (except for conversion rate)
**post-op complication includes Clavien-Dindo grade III or above