Table 1. Clinical and radiological attributes of the participants.

CBD: common bile duct; ERCP: endoscopic retrograde cholangiopancreatography.

Variables		Frequency (n)	Percentage (%)
Gender	Male	56	42.7
	Female	75	57.3
Biliary abdominal pain	Yes	107	81.7
	No	24	18.3
Acute pancreatitis	Yes	38	29
	No	93	71
Gall bladder stones (<3mm)	Yes	1	0.8
	No	130	99.2
Gall bladder stones (≥3mm)	Yes	78	59.5
	No	53	40.5
CBD microlithiasis (<3mm)	Yes	2	1.5
	No	129	98.5
CBD stones (≥3mm)	Yes	27	20.6
	No	104	79.4