Changes in the timing of surgery according to calendar year
| Total | 2005–2012 | 2013–2017 | P value | |
| No. of patients who underwent surgery | 273 (100.0) | 137 (100.0) | 136 (100.0) | |
| Surgery within 7 days | 122 (44.7) | 40 (29.2) | 82 (60.3) | <0.001* |
| Days from diagnosis to surgery | 8.0 (4.0–17.0) | 11.0 (5.0–22.5) | 6.0 (4.0–11.0) | <0.001† |
| In-hospital mortality | 20 (7.3) | 13 (9.5) | 7 (5.1) | 0.169* |
Data are presented as a median (IQR) or number (%) of patients.
*χ2 test.
†Mann-Whitney U-test.