Table 2. The characteristics of clinical factors.

	N = 169
Age (year)	76.0 [68.0;82.0]
Sex
Female	72 (42.6%)
Male	97 (57.4%)
Diabetes mellitus
no	130 (76.9%)
yes	39 (23.1%)
Severity of cholangitis
Mild	20 (11.8%)
Moderated	107 (63.3%)
Severe	42 (24.9%)
Laboratory findings
White blood cells count (x103/㎕)	10.3 [7.0;14.4]
Total bilirubin (mg/dL)	2.6 [1.4;4.5]
Creatinine (mg/dL)	0.8 [0.7;1.1]
Platelet (x103/㎕)	203.9 [152.0;245.0]
Prothrombin time (INR)	1.1 [1.0;1.2]
Amylase (U/L)	51.5 [33.0;89.0]
Aspartate aminotransferase (AST; IU/L)	189.0 [70.0;410.0]
Alanine aminotransferase (ALT; IU/L)	140.0 [48.0;242.0]
Alkaline phosphatase (ALP; IU/L)	229.0 [140.0;350.0]
γ-glutamyl transpeptidase (γ-GPT; IU/L)	262.0 [134.0;433.0]
C-reactive protein (mg/dL)	5.4 [1.2;12.0]

Data shown are number (%), or median [IQR; interquartile range].