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Retrospective Study
Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Mar 27, 2026; 18(3): 115888
Published online Mar 27, 2026. doi: 10.4240/wjgs.v18.i3.115888
Table 1 Comparison of preoperative baseline data between two groups, n (%)/mean ± SD

T-tube group (n = 32)
Non-T-tube group (n = 36)
t/χ²
P value
Age (years)65.07 ± 9.8963.90 ± 7.640.517> 0.05
Sex
Male13 (40.63)16 (44.44)-0.101> 0.05
Female19 (59.38)20 (55.56)
Body mass index (kg/m2)22.63 ± 2.2922.52 ± 2.700.173> 0.05
Hypertension12 (37.50)14 (38.89)0.014> 0.05
Diabetes8 (25.00)6 (16.67)0.720> 0.05
Tumor
Benign13 (40.63)17 (47.22)0.299> 0.05
Malignancy19 (59.37)19 (52.78)
Bilirubin (μmol/L)63.27 ± 81.3738.72 ± 41.651.839> 0.05
Biliary diameter(mm)5.63 ± 2.055.91 ± 1.21-0.675> 0.05


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