Table 2.
Risk factors for perioperative serious complications (C-D III-V).
| OR | 95%CI | p-value | |
|---|---|---|---|
| Univariate | |||
| Males/Females | 0.63 | 0.40–0.99 | 0.045 |
| Age >50 | 2.08 | 1.32–3.26 | 0.002 |
| Obesity | 0.98 | 0.45–2.15 | 0.962 |
| ASA with every grade higher | 1.71 | 1.17–2.48 | 0.005 |
| Smoking | 1.28 | 0.69–2.39 | 0.428 |
| Diabetes | 3.24 | 1.46–7.20 | 0.004 |
| Symptoms >48 h vs. <48 h | 2.44 | 1.55–3.85 | <0.001 |
| Alvarado | 1.13 | 1.01–1.26 | 0.035 |
| Leukocytosis | 1.02 | 1.00–1.04 | 0.021 |
| Leukocytosis >20,000/mm3 | 2.48 | 1.42–4.33 | 0.001 |
| CRP >100 | 3.87 | 2.39–6.27 | <0.001 |
| No of appendectomies/year in department | 1.42 | 0.85–2.39 | 0.185 |
| Specialist vs. resident | 0.86 | 0.56–1.32 | 0.492 |
| Operative time | 1.01 | 1.01–1.02 | <0.001 |
| Operative time/10 min | 1.12 | 1.06–1.19 | <0.001 |
| Clipping | 0.68 | 0.44–1.05 | 0.086 |
| Suturing/ligature | 2.78 | 1.65–4.67 | <0.001 |
| Stapler | 0.87 | 0.35–2.18 | 0.774 |
| Endoloop | 1.22 | 0.67–2.21 | 0.510 |
| Röder loop | 0.38 | 0.12–1.22 | 0.106 |
| Complicated vs. uncomplicated appendicitis | 3.80 | 2.45–5.90 | <0.001 |
| Intraoperative adverse events | 4.20 | 1.89–9.336 | <0.001 |
| Conversions | 4.03 | 2.33–6.98 | <0.001 |
| Multivariate | |||
| Males/Females | 0.66 | 0.35–1.26 | 0.208 |
| Age >50 | 0.68 | 0.29–1.59 | 0.376 |
| ASA with every grade higher | 1.26 | 0.70–2.26 | 0.448 |
| Diabetes | 1.67 | 0.51–5.50 | 0.397 |
| Symptoms >48 h vs. <48 h | 1.61 | 0.84–3.09 | 0.153 |
| Alvarado | 1.10 | 0.95–1.27 | 0.223 |
| Leukocytosis >20,000/mm3 | 2.02 | 0.88–4.63 | 0.098 |
| CRP >100 | 1.83 | 0.93–3.61 | 0.081 |
| Complicated vs. uncomplicated appendicitis | 3.63 | 1.74–7.61 | 0.001 |
| Intraoperative adverse events | 4.09 | 1.32–12.65 | 0.014 |
| Conversions | 1.48 | 0.67–3.24 | 0.328 |