Table 4.

Correlations between different continuous and ordinal data 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.

		Length of Stay	Days from Admission to EC	POSSUM PS	Operative Time
Days from onset to EC	Correlation	0.26	0.53	0.01	0.14
	p value	<0.001	<0.001	0.002	<0.001
Length of stay	Correlation	-------	0.35	0.31	0.33
	p value	-------	<0.001	<0.001	<0.001
Days from admission	Correlation	-------	-------	0.06	0.167
	p value	-------	-------	0.049	<0.001
POSSUM score	Correlation	-------	-------	-------	0.16
	p value	-------	-------	-------	<0.001

EC: early cholecystectomy, POSSUM: Physiological and Operative Severity Score for the enumeration of Mortality and morbidity, PS: physiological score. p value = Pearson rank correlation.