Serum Carbohydrate Antigen 199 as a Biomarker for Evaluating Patients with Choledocholithiasis

Table 2

Comparisons of Ca199 between the two groups.

WBC		Ca199
3.5~9.5 × 10^9/L	74	28.71 (13.28,87.59)	-3.584	0.000
≥9.5 × 10^9/L	61	78.89 (27.49,436.90)

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