Factors associated with time to laparoscopic cholecystectomy for acute cholecystitis

Table 5 Hierarchical linear models for association between time to surgery and risk of complication

Model	Odds ratio	95% CI	P value
Unadjusted (h)			> 0.01
< 24	0.03	0.004-0.24
24-48	0.3	0.05-1.52	> 0.05
48-72	0.2	0.02-1.74	> 0.05
> 72 (reference)	1		> 0.05
Adjusted for patients demographics (h)1
< 24	0.05	0.003-0.65
24-48	0.38	0.04-4.03
48-72	0.27	0.01-5.01
> 72	1
Adjusted for demographics and co-morbidity (h)
< 24	0.05	0.003-0.74
24-48	0.44	0.04-5.00
48-72	0.26	0.01-4.91
> 72 (reference)
Adjusted for demographics, co-morbidity and physical signs (h)2
< 24	0.04	0.003-0.45
24-48	0.33	0.03-3.49
48-72	0.25	0.01-5.06
> 72	1
Adjusted for demographics, co-morbidity, physical signs and imaging studies (h)3
< 24	0.08	0.004-1.61
24-48	0.66	0.04-12.2
48-72	0.41	0.01-13.5
> 72	1

¹Age and sex;

²Murphy’s sign, leukocytosis, and fever;

³Imaging studies included abdominal ultrasound, CT scan, MRCP, and HIDA scan. Abbreviations as in Table 4.