Pancreaticobiliary Maljunction Is Associated with Common Bile Duct Carcinoma: A Meta-Analysis

Table 2

The clinical data of included studies on CBDC patients with or without associated PBM.

First author; (year)	With PBM			Without PBM
	Number of patients	Age at diagnosis	Incidence of CDC	Number of patients	Age at diagnosis	Incidence of CDC
Tashiro et al. [8] (2003)	153	24.3±23.9	29/153	527	47.3±19.3	61/527
Kamisawa et al. [13] (2010)	16	54.6±14.2	5/16	91	58.8±9.1	20/91
Matsumoto et al. [18] (2003)	39	63.0±11.0	12/39	211	71.4±10.4	24/211
Wang et al. [23] (1998)	11	NA	4/11	16	NA	3/16
Roukounakis et al. [10] (2007)	22	65.6±9.8	7/22	4	68.0±11.5	1/4
Ohuchida et al. [24] (2006)	55	30.0±20.7	12/55	141	52.9±16.8	11/141
Hasumi et al. [16] (2000)	63	53.2±11.9	8/63	351	66.5±18.4	44/351
Suda et al. [26] (1983)	27	NA	NA	45	NA	NA
Song et al. [25] (1999)	38	36.5±14.1	7/38	291	49.2±12.2	15/291
Seki et al. [27] (2005)	6	51.6±13.3	4/6	32	50.9±13.7	3/32

PBM: pancreaticobiliary maljunction; CBDC: common bile duct carcinoma; CDC: congenital dilatation of the common bile duct; NA: not available.