Table 1 Descriptives of the categoric and continuous variables for ambulatory and conventional cases
From: Should ambulatory appendectomy become the standard treatment for acute appendicitis?
|  | Ambulatory cases (n = 109) | Conventional cases (n = 76) | p value | ||||
|---|---|---|---|---|---|---|---|
Mean ± SD | Median | Range | Mean ± SD | Median | Range | ||
Pre-operative variables | |||||||
 Age (years) | 27.8 ± 13.8 | 23.0 | (8.0–82.0) | 43.2 ± 19.9 | 42.0 | (15.0–87.0) | < 0.001 |
 Appendix diameter (mm) | 10.0 ± 3.2 | 9.0 | (5.8–26.0) | 11.7 ± 4.2 | 11.0 | (5.0–30.0) | < 0.001 |
 CRP level | 27.8 ± 37.3 | 12.0 | (1.0–233.0) | 63.7 ± 101.7 | 21.0 | (1.0–485.0) | 0.016 |
 WBC | 12.8 ± 4.9 | 13.0 | (4.1–23.0) | 14.1 ± 5.2 | 13.4 | (6.0–28.0) | 0.136 |
 ASA score | 1.2 ± 0.5 | 1.0 | (1.0–3.0) | 1.3 ± 0.6 | 1.0 | (1.0–3.0) | 0.393 |
 SA score | 3.8 ± 1.1 | 4.0 | (1.0–5.0) | 3.3 ± 1.2 | 3.0 | (0.0–5.0) | 0.009 |
 Male gender | 57.8% |  |  | 53.9% |  |  | 0.653 |
 BMI > 28 | 7.3% |  |  | 7.9% |  |  | 1.000 |
 Symptoms > 48 h | 38.5% |  |  | 54.1% |  |  | 0.049 |
 Appendix diameter > 10 mm | 27.8% |  |  | 52.0% |  |  | 0.001 |
 Appendicolith | 26.6% |  |  | 27.6% |  |  | 1.000 |
 Perforation signs | 10.1% |  |  | 25.0% |  |  | 0.008 |
Per-operative variables | |||||||
 Operation-time (mn) | 30.8 ± 12.0 | 30.0 | (14.0–88.0) | 37.7 ± 16.5 | 34.0 | (15.0–102.0) | 0.004 |
Post-operative variables | |||||||
 Unexpected re-consultation | 11.9% |  |  | 22.4% |  |  | 0.069 |
 Unexpected re-hospitalization | 4.6% |  |  | 9.2% |  |  | 0.236 |
 Unexpected re-operation | 0.9% |  |  | 4.0% |  |  | 0.306 |