Table 1.

Preoperative characteristics of the patients who were operated on for acute cholecystitis from September 2021 to September 2022 from 79 centres in 19 countries by the time between the onset of symptoms and surgery, n = 117.

	Onset of Symptoms
Variables	0–3 Days n = 656	4–7 Days n = 360	8–10 Days n = 101	p Value
Age (years)	59 (46–72)	62 (50–74)	61 (46–74)	0.14
BMI	26.7 (24.3–29.4)	26.7 (24.2–29.4)	26.3 (23.6–28.9)	0.4
ACC severity grade	2 (1–2) *	2 (2–2) *	2 (1–2) *	<0.001
POSSUM physiological score	19 (15–24)	19 (16–24)	21(17–26)	0.012
Days from admission to surgery	1 (0–1)	2 (0–3)	6 (2–8)	<0.001

BMI: Body Mass Index, ACC: Acure Cholecystitis, POSSUM: Physiological and Operative Severity Score for the enumeration of Mortality and morbidity, PS: physiological score. Data are presented as median (IQR). p value Kruskall-Wallis test. * mean (SD) of ACC severity grade: 1.6 (0.5) for 0–3 days, 1.8 (0.4) for 4–7 days, 1.7 (0.5) for 8–10 days.