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Table 1 Clinical and tumor characteristics of the patients

From: Anatomical basis for the choice of laparoscopic surgery for low rectal cancer through the pelvic imaging data—a cohort study

  Operation methods P
Anal reservation(48) Non-anal reservation(19)
Age 62.38 57.84 0.230
BMI 23.36 22.65 0.359
Gender
 Male (43) 33 10 0.215
 Female (24) 15 9
Anal distance(cm) 5.286 2.587 0.000
Complication
 With (24) 15 6 0.979
 Without(46) 33 13
Tumor staging
 T1 (3) 3 0 0.128
 T2 (25) 15 10
 T3 (39) 30 9
Transverse diameter of tumor (cm) 3.417 3.425 0.651
Tumor location
 Front wall (5) 2 3 0.386
 Left wall (32) 26 6
 Right wall (30) 20 10
  1. Anal distance, the distance from the lower edge of the tumor to the anus was measured along the central axis of the pelvic MRI. Transverse diameter of tumor, the maximum width of coronal plane was measured by MRI