Table 2.

Postoperative outcomes of patients undergoing open or laparoscopic cholecystectomy for acute cholecystitis.

	Baseline population				After propensity score matching
Postoperative outcomes	All patients (n=1 182)	Open (n=217)	Laparoscopy (n=965)	P value*	Laparoscopy (n=217)	P value*
Hospital stays
Total days, median (IQR)	4 (2–6)	7 (4–12)	3 (2–5)	<0.001	4 (3–6)	<0.001
30-day morbidity
Patients who developed morbidity events, n (%)	203 (17.2)	89 (41.0)	114 (11.8)	<0.001	47 (21.7)	<0.001
Postoperative complications, n (%)
Anastomotic leak / dehiscence	15 (1.3)	12 (5.5)	3 (0.3)	<0.001	0 (0.0)	<0.001
Wound dehiscence	8 (0.7)	3 (1.4)	5 (0.5)	0.34	1 (0.5)	0.62
Cardiac failure	36 (3.0)	19 (8.8)	17 (1.8)	<0.001	8 (3.7)	0.047
Fever / pyrexia of unknown origin	17 (1.4)	8 (3.7)	9 (0.9)	0.006	2 (0.9)	0.11
Wound haemorrhage	4 (0.3)	3 (1.4)	1 (0.1)	0.02	0 (0.0)	0.25
Deep wound haemorrhage	6 (0.5)	5 (2.3)	1 (0.1)	<0.001	0 (0.0)	0.06
Hypotension	28 (2.4)	18 (8.3)	10 (1.0)	<0.001	5 (2.3)	0.01
Wound infection	20 (1.7)	9 (4.1)	11 (1.1)	0.005	7 (3.2)	0.80
Deep wound infection	55 (4.7)	21 (9.7)	34 (3.5)	<0.001	11 (5.1)	0.10
Chest infection	20 (1.7)	10 (4.6)	10 (1.0)	<0.001	5 (2.3)	0.29
Urinary tract infection	9 (0.8)	5 (2.3)	4 (0.4)	0.014	1 (0.5)	0.22
Renal failure	49 (4.1)	26 (12.0)	23 (2.4)	<0.001	13 (6.0)	0.04
Respiratory failure	42 (3.6)	24 (11.1)	18 (1.9)	<0.001	9 (4.1)	0.01
Septicaemia	34 (2.9)	27 (12.4)	7 (0.7)	<0.001	2 (0.9)	<0.001
Deep vein thrombosis, pulmonary embolism	3 (0.3)	2 (0.9)	1 (0.1)	0.16	1 (0.5)	1.0
30-day mortality
Patients who died, n (%)	27 (2.3)	19 (8.8)	8 (0.8)	<0.001	6 (2.8)	0.013

^*Laparoscopic vs. Open.

IQR, interquartile range.