Table 1 Choledocholithotomy patient demographic data

Patients

56

110

21

Age (year)

69 (33–95)

68 (24–98)

70.8 (46–92)

0.774

Gender

 Female (%)

25 (44.6%)

52 (47.3%)

7 (33%)

0.36

 Male (%)

31 (55.4%)

58 (52.7%)

14 (67%)

 BMI(kg/m²)

24.13 (17.2–34.9)

24.27 (13.6–40.4)

25.17 (16.1–34.7)

0.41

 CRP(mg/L)

33.7 (0.5–380)

37.2 (0.2–359)

16.4 (0.4–57.4)

0.548

 Alkaline Phosphatase (U/L)

188.8 (52–742)

160.4 (38–677)

196.5 (51–693)

0.349

 WBC(1000/μL)

7.5 (3.4–25)

7.4 (3–19.8)

6.43 (3.9–12.6)

0.471

 Bilirubin T (mg/dL)

1.77 (0.2–15.3)

1.61 (0.2–13.8)

1.77 (0.3–8.8)

0.859

Preoperative drainage

 ERBD (%)

19 (33.9%)

52 (47.3%)

11 (52.4%)

0.216

 PTCD (%)

4 (7.1%)

4 (3.6%)

4 (19%)

0.041

 PTGBD (%)

7 (12.5%)

18 (16.4%)

6 (28.6%)

0.195

 T tube placement (%)

40 (71.4%)

47 (42.7%)

17 (81%)

0.043

 Abdominal surgical history (%)

32 (57.1%)

13 (11.8%)

10 (47%)

0.0001

 Operative time(minutes)

181 (74–450)

237 (108–580)

289 (163–454)

0.0001

 Conversion (%)^*

-

17 (15.5%)

4 (19%)

0.746^*

 Major complications (%)

0 (0%)

3 (2.7%)

0 (0%)

0.404

 Minor complications (%)

8 (14.3%)

21 (19.1%)

5 (24%)

0.948

 PHOS (days)

16 (3–179)

8 (2–64)

12.8 (3–16)

0.0001