Gastroenterol Res

Gastroenterology Research, ISSN 1918-2805 print, 1918-2813 online, Open Access

Article copyright, the authors; Journal compilation copyright, Gastroenterol Res and Elmer Press Inc

Journal website http://www.gastrores.org

Original Article

Volume 5, Number 5, October 2012, pages 177-181

Influence of Black and Brown Pigment Stone in Cholecystectomized Patients With Acute Biliary Pancreatitis

Tables

**Table 1.** Demographic Data and Laboratory Results
	Black stone group (n = 30)			Brown stone group (n = 68)			P-value
	M ± SD	N	%	M ± SD	N	%	P-value
^aIndependent T test; ^bPearson’s Chi-square test; ^cFisher’s exact test. Abbreviations: ALP, alkaline phosphatase; ALT, alanine aminotransferase; CBD, common bile duct; M ± SD, mean ± standard derivation; N, number of patients.
Age	64.87 ± 13.99			71.35 ± 17.46			0.076^a
Gender							0.698^b
Male		20	(66.7%)		48	(70.6%)
Female		10	(33.3%)		20	(29.4%)
Severity
Ranson’s scores
≤ 2		20	(66.7%)		44	(64.7%)	0.851^b
≥ 3		10	(33.3%)		24	(35.3%)
CT severity index
0-3		0			44	(64.7%)	0.001^c
4-6		22	(73.3%)		16	(23.5%)
7-10		8	(26.7%)		8	(11.8%)
Laboratory data
C-reactive protein	6.84 ± 6.52			4.20 ± 4.07			0.054^a
Bilirubin	4.63 ± 1.30			2.50 ± 1.23			0.001^a
ALP	405.87 ± 217.25			273.53 ± 222.68			0.008^a
ALT	408.87 ± 335.28			244.41 ± 168.19			0.015^a
Images
CBD diameter	0.99 ± 0.24			1.01 ± 0.34			0.778^a
CBD stone numbers
1 - 2		20	(66.7%)		42	(61.8%)	0.641^b
≥ 3		10	(33.3%)		26	(38.2%)
Maximal CBD stone size	0.83 ± 0.30			0.85 ± 0.31			0.819a
Juxtapapillary diverticula		8	(26.7%)		28	(41.2%)	0.170^b

**Table 2.** Clinical Characteristics
	Black stone group (n = 30)			Brown stone group (n = 68)			P-value
	M ± SD	N	%	M ± SD	N	%	P-value
^aIndependent T test; ^bPearson’s Chi-square test; ^cFisher’s exact test. Abbreviations: ERCP, endoscopic retrograde cholangiopancreatography; M ± SD, mean ± standard derivation; N, number of patients.
ERCP perform ≥ 2 times		0			20	(29.4%)	0.001^c
Combined cholangitis		16	(53.3%)		18	(26.5%)	0.010^b
Positive blood culture		12	(40.0%)		0		0.001^c
Positive bile culture		20	(66.7%)		52	(76.5%)	0.311^b
Mortality		4	(13.3%)		4	(5.9%)	0.214^c
Hospital days	13.27 ± 5.06			12.94 ± 7.32			0.825^a