Table 4.

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.