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Retrospective Study
Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Apr 27, 2026; 18(4): 116546
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.116546
Table 1 Comparison of general data between two groups, n (%)
Item
Observation group (n = 59)
Control group (n = 58)
Statistic
P value
Genderχ2 = 0.1450.703
    Male35 (59.3)33 (56.9)
    Female24 (40.7)25 (43.1)
Age (years, mean ± SD)58.6 ± 10.259.3 ± 9.8t = 0.3890.698
BMI (kg/m2, mean ± SD)23.4 ± 2.823.7 ± 2.6t = 0.6180.538
ASA classificationZ = -0.3260.744
Grade I18 (30.5)16 (27.6)
Grade II32 (54.2)34 (58.6)
Grade III9 (15.3)8 (13.8)
Tumor locationχ2 = 0.0690.793
    Colon37 (62.7)35 (60.3)
    Rectum22 (37.3)23 (39.7)
TNM staging Z = -0.1580.875
    Stage I12 (20.3)11 (19.0)
    Stage II26 (44.1)27 (46.6)
    Stage III21 (35.6)20 (34.4)
Surgical approachχ2 = 0.8920.926
    Right hemicolectomy19 (32.2)17 (29.3)
    Left hemicolectomy11 (18.6)13 (22.4)
    Sigmoid colectomy7 (11.9)5 (8.6)
    Anterior rectal resection18 (30.5)19 (32.8)
    Abdominoperineal resection4 (6.8)4 (6.9)
Operative time (minute, mean ± SD)186.4 ± 35.7189.2 ± 38.1t = 0.4150.679
Intraoperative blood loss (mL, mean ± SD)82.3 ± 28.685.7 ± 31.2t = 0.6220.535


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