Case Control Study
Copyright ©The Author(s) 2024.
World J Gastrointest Surg. Oct 27, 2024; 16(10): 3104-3113
Published online Oct 27, 2024. doi: 10.4240/wjgs.v16.i10.3104
Table 1 Baseline characteristics of the enrolled rectal cancer patients
Characteristic
The control group (n = 68)
The observation group (n = 72)
t/χ2
P value
Age (years)
    mean ± SD64.9 ± 12.466.2 ± 10.50.6360.513
    Median (IQR)67.0 (59.0-73.0)69.0 (60.0-72.0)0.644
Gender0.7590.448
    Male4341
    Female2531
Clinical stage0.7520.687
    I2523
    II2026
    III2323
Diverting stoma1.7030.192
    Yes4641
    No2231
IMA types1.9470.584
    I2835
    II1916
    III2120
    IV01
Neoadjuvant therapy0.1760.675
    Yes2423
    No4449
Tumor location0.4710.790
    High1917
    Middle3541
    Low1414
Table 2 Perioperative characteristics of rectal cancer patients
Characteristic
The control group (n = 68)
The observation group (n = 72)
t/χ2
P value
Operating time (minute)
    mean ± SD198.5 ± 49.6174.5 ± 38.23.1880.002
    Median (IQR)200.0 (165.0-225.0)170.0 (150.0-208.8)0.004
Intraoperative blood loss (mL), mean ± SD58.2 ± 30.843.9 ± 31.32.8570.005
Number of lymph node dissections, mean ± SD14.5 ± 5.114.8 ± 5.50.3360.738
Lymph vessel invasion0.7760.438
    Yes2118
    No4754
Nerve invasion1.5820.554
    Yes1513
    No5359
T0.4160.677
    T1/T22428
    T3/T44444
N0.2370.813
    N04549
    N+2323
Postoperative recovery time (day)
    mean ± SD10.5 ± 4.98.6 ± 2.62.7540.007
    Median (IQR)9.0 (8.0-10.75)8.0 (7.0-9.0)0.001
Duration of stay in the hospital (days)
    mean ± SD15.9 ± 5.613.1 ± 3.13.6390.001
    Median (IQR)14.0 (13.0-18.0)12.5 (11.0-14.8)0.001
Cost (thousand RMB)
    mean ± SD40.1 ± 10.135.1 ± 5.92.1050.001
    Median (IQR)38.7 (34.7-42.7)35.1 (31.4-38.6)0.001
Intestinal obstruction0.432
    Yes42
    No6470
Anastomotic leakage0.265
    Yes52
    No6370
Wound infection0.356
    Yes31
    No6571
Postoperative complications4.0260.048
    Yes125
    No5467