| . | n . | Missing values (n) . | All . | Appendicolith and complicated acute appendicitis . | Appendicolith and uncomplicated acute appendicitis . | P* . |
|---|---|---|---|---|---|---|
| Patients | 380 | 0 | 380 | 197† (51.8) | 183 (48.2) | – |
| Sex‡ | ||||||
| Male | 226 | 0 | 226 | 115 (50.9) | 111 (49.1) | – |
| Female | 154 | 0 | 154 | 82 (53.2) | 72 (46.8) | – |
| Age (years), mean(s.d.) | 380 | 0 | 43.2(17.0) | 47.0(17.6) | 39.1(15.4) | <0.001 |
| BMI (kg/m2), median (range) | 372 | 8 | 26.1 (16.9–53.3) | 26.1 (18.8–50.8) | 26.1 (16.9–53.3) | 0.82 |
| Body temperature (°C), mean(s.d.) | 364 | 16 | 37.6(0.7) | 37.8(0.7) | 37.4(0.6) | <0.001 |
| White blood cell count (×109/l), median (i.q.r. or range) | 380 | 0 | 14.1 (i.q.r. 11.4–16.6) | 14.3 (range 12.2–17.2) | 13.6 (range 10.9–16.3) | 0.013 |
| C-reactive protein (mg/l), median (i.q.r.) | 380 | 0 | 37 (12–111) | 73 (25–158) | 18 (6–47) | <0.001 |
| Duration of symptoms before surgery§ (h), median (i.q.r.) | 153 | 227 | 33.5 (20.7–54.9) | 37.6 (22.0–62.3) | 26.1 (17.8–40.0) | <0.001 |
| . | n . | Missing values (n) . | All . | Appendicolith and complicated acute appendicitis . | Appendicolith and uncomplicated acute appendicitis . | P* . |
|---|---|---|---|---|---|---|
| Patients | 380 | 0 | 380 | 197† (51.8) | 183 (48.2) | – |
| Sex‡ | ||||||
| Male | 226 | 0 | 226 | 115 (50.9) | 111 (49.1) | – |
| Female | 154 | 0 | 154 | 82 (53.2) | 72 (46.8) | – |
| Age (years), mean(s.d.) | 380 | 0 | 43.2(17.0) | 47.0(17.6) | 39.1(15.4) | <0.001 |
| BMI (kg/m2), median (range) | 372 | 8 | 26.1 (16.9–53.3) | 26.1 (18.8–50.8) | 26.1 (16.9–53.3) | 0.82 |
| Body temperature (°C), mean(s.d.) | 364 | 16 | 37.6(0.7) | 37.8(0.7) | 37.4(0.6) | <0.001 |
| White blood cell count (×109/l), median (i.q.r. or range) | 380 | 0 | 14.1 (i.q.r. 11.4–16.6) | 14.3 (range 12.2–17.2) | 13.6 (range 10.9–16.3) | 0.013 |
| C-reactive protein (mg/l), median (i.q.r.) | 380 | 0 | 37 (12–111) | 73 (25–158) | 18 (6–47) | <0.001 |
| Duration of symptoms before surgery§ (h), median (i.q.r.) | 153 | 227 | 33.5 (20.7–54.9) | 37.6 (22.0–62.3) | 26.1 (17.8–40.0) | <0.001 |
Values are n (%) unless otherwise indicated. *Logistic regression analysis. †Of these 197 patients with complicated acute appendicitis, there were 138 patients with gangrenous appendicitis, 29 patients with a peri-appendicular abscess, 121 patients with perforation of the appendix, and 7 patients with a tumour; these findings are not mutually exclusive, such that one patient may have had several of the findings mentioned above. ‡The sex of the patient had no association with complicated acute appendicitis (P = 0.637; chi-squared test). §The duration of symptoms before surgery was the time from the onset of the first symptom (pain, nausea, or vomiting) to surgery. i.q.r., interquartile range.
| . | n . | Missing values (n) . | All . | Appendicolith and complicated acute appendicitis . | Appendicolith and uncomplicated acute appendicitis . | P* . |
|---|---|---|---|---|---|---|
| Patients | 380 | 0 | 380 | 197† (51.8) | 183 (48.2) | – |
| Sex‡ | ||||||
| Male | 226 | 0 | 226 | 115 (50.9) | 111 (49.1) | – |
| Female | 154 | 0 | 154 | 82 (53.2) | 72 (46.8) | – |
| Age (years), mean(s.d.) | 380 | 0 | 43.2(17.0) | 47.0(17.6) | 39.1(15.4) | <0.001 |
| BMI (kg/m2), median (range) | 372 | 8 | 26.1 (16.9–53.3) | 26.1 (18.8–50.8) | 26.1 (16.9–53.3) | 0.82 |
| Body temperature (°C), mean(s.d.) | 364 | 16 | 37.6(0.7) | 37.8(0.7) | 37.4(0.6) | <0.001 |
| White blood cell count (×109/l), median (i.q.r. or range) | 380 | 0 | 14.1 (i.q.r. 11.4–16.6) | 14.3 (range 12.2–17.2) | 13.6 (range 10.9–16.3) | 0.013 |
| C-reactive protein (mg/l), median (i.q.r.) | 380 | 0 | 37 (12–111) | 73 (25–158) | 18 (6–47) | <0.001 |
| Duration of symptoms before surgery§ (h), median (i.q.r.) | 153 | 227 | 33.5 (20.7–54.9) | 37.6 (22.0–62.3) | 26.1 (17.8–40.0) | <0.001 |
| . | n . | Missing values (n) . | All . | Appendicolith and complicated acute appendicitis . | Appendicolith and uncomplicated acute appendicitis . | P* . |
|---|---|---|---|---|---|---|
| Patients | 380 | 0 | 380 | 197† (51.8) | 183 (48.2) | – |
| Sex‡ | ||||||
| Male | 226 | 0 | 226 | 115 (50.9) | 111 (49.1) | – |
| Female | 154 | 0 | 154 | 82 (53.2) | 72 (46.8) | – |
| Age (years), mean(s.d.) | 380 | 0 | 43.2(17.0) | 47.0(17.6) | 39.1(15.4) | <0.001 |
| BMI (kg/m2), median (range) | 372 | 8 | 26.1 (16.9–53.3) | 26.1 (18.8–50.8) | 26.1 (16.9–53.3) | 0.82 |
| Body temperature (°C), mean(s.d.) | 364 | 16 | 37.6(0.7) | 37.8(0.7) | 37.4(0.6) | <0.001 |
| White blood cell count (×109/l), median (i.q.r. or range) | 380 | 0 | 14.1 (i.q.r. 11.4–16.6) | 14.3 (range 12.2–17.2) | 13.6 (range 10.9–16.3) | 0.013 |
| C-reactive protein (mg/l), median (i.q.r.) | 380 | 0 | 37 (12–111) | 73 (25–158) | 18 (6–47) | <0.001 |
| Duration of symptoms before surgery§ (h), median (i.q.r.) | 153 | 227 | 33.5 (20.7–54.9) | 37.6 (22.0–62.3) | 26.1 (17.8–40.0) | <0.001 |
Values are n (%) unless otherwise indicated. *Logistic regression analysis. †Of these 197 patients with complicated acute appendicitis, there were 138 patients with gangrenous appendicitis, 29 patients with a peri-appendicular abscess, 121 patients with perforation of the appendix, and 7 patients with a tumour; these findings are not mutually exclusive, such that one patient may have had several of the findings mentioned above. ‡The sex of the patient had no association with complicated acute appendicitis (P = 0.637; chi-squared test). §The duration of symptoms before surgery was the time from the onset of the first symptom (pain, nausea, or vomiting) to surgery. i.q.r., interquartile range.
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