Proper bile duct flow, rather than radical excision, is the most critical factor determining treatment outcomes of bile duct cysts

Table 6 Risk factor analysis of late complications on the two factors for types of surgeries in Type IVa cysts

	Risk ratio	95% confidence limits		P-value
Late complications	1.2109	0.5416	2.7073	0.804
Long-term biliary function	1.184	0.5022	2.7915	0.797

Note: the clinical outcomes between two surgery methods (surgery I and II) for Type IVa cysts were compared

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