Table 3.

Association between Individual Criteria and Choledocholithiasis

	n	% with CDL	Sensitivity (95% CI)	Specificity (95% CI)	OR (95% CI)
Stone on imaging	39	85%	17% (12–23)	92% (83–97)	2.39 (0.96–5.96)
CBD dilation	92	83%	40% (33–47)	79% (68–87)	2.42 (1.29–4.51)
Total bilirubin >4	164	77%	66% (59–73)	51% (39–62)	2.01 (1.17–3.45)
1.8 < Total bilirubin < 4	127	73%	48% (41–56)	55% (43–66)	1.13 (0.66–1.94)
Age >55	45	71%	17% (12–23)	83% (72–90)	0.95 (0.47–1.94)
Gallstone pancreatitis	74	53%	20% (15–27)	53% (41–65)	0.29 (0.16–0.52)

CBD, common bile duct; CDL, choledocholithiasis; CI, confidence interval; OR, odds ratio.