Diagnostic value of elevated serum carbohydrate antigen 199 level in acute cholangitis secondary to choledocholithiasis

Table 1 Baseline data of patients

	Observation group (n = 158)	Control group (n = 569)	χ2/t value	P value
Age (yr)	54.31 ± 12.54	51.65 ± 11.29	0.336	0.752
Gender
Male	69	263	0.324	0.569
Female	89	306
B-ultrasound
Diameter of CBD (mm)	9.51 ± 2.14	9.85 ± 2.07	0.243	0.851
Number of CBD
Single	107	372	0.302	0.583
Multiple	51	197
Complications
Diabetes mellitus	32	112	0.025	0.874
Hypertensive disease	36	101	2.049	0.152
Hyperlipidemia	13	41	0.188	0.665
WBC count	8.23 ± 1.82	8.68 ± 2.25	-1.702	0.092

CBD: Common bile duct; WBC: White blood cell.