Enzyme pattern of biliary colic: A counterintuitive picture

Table 1 Demographic characteristics

Age (yr)
Mean ± SD	40.5 ± 19.1
Median	37
Gender (#)
Men	24
Women	76
Age by gender (yr)
Men
Mean ± SD	50.0 ± 17.0
Median	49
Women
Mean ± SD	37.4 ± 18.8
Median	31.5
Cholelithiasis known previously (from history)
Yes	47
No	53

Table 2 Clinical features, n (%)

Pain location
RUQ	41 (42.3)
Epigastric	43 (44.3)
RUQ and/or epigastric + other region	6 (6.2)
Not RUQ or epigastric	7 (7.3)
No data	3
Fever
Yes	2 (2.1)
No	95 (97.9)
No data	3
Nausea
Yes	28 (60.9)
No	18 (39.1)
No data	54
Vomiting
Yes	20 (31.7)
No	43 (68.3)
No data	37
Tenderness to palpation
RUQ	47 (49.0)
Epigastric	20 (20.8)

RUQ: Right upper quadrant.

Table 3 Ultrasound findings

	Frequency
Non contributory	64
Contracted gallbladder	2
Cholelithiasis	58
Contracted gallbladder + cholelithiasis	4
Compatible or highly suggestive	35
Dilated CBD	5
Dilated CBD + filling defect	1
Thickened gallbladder wall	6
Distended gallbladder + cholelithiasis	13
Distended gallbladder	2
Stone in cystic duct	4
Distended gallbladder + pericystic fluid	2
Thickened gallbladder wall + cholelithiasis	2
Total valid	99
Missing	1
Total	100

CBD: Common bile duct.