Table 2 The association between measurement parameters and surgical methods
Parameters | Mean ± SD (min, max) or median (four quantile interval) | F or Z | P |
|---|---|---|---|
Transverse diameter of tumor (cm) | 3.363 (2.903, 3.825) | − 0.452 | 0.651 |
Anal margin distance (cm) | 4.868 (3.20, 5.69) | − 6.065 | 0.000 |
a | 10.97 ± 1.15 (8.20, 14.2) | − 0.108 | 0.914 |
b | 13.4 ± 0.83 (11.67, 15.85) | 1.392 | 0.169 |
c | 12.48 (12.17, 13.06) | − 0.814 | 0.416 |
d | 7.43 (6.48, 7.80) | − 2.024 | 0.043 |
e | 22.83 ± 1.63 (18.89, 26.51) | 1.979 | 0.052 |
f | 11.71 (11.24, 12.49) | − 0.549 | 0.583 |
g | 10.00 (9.12, 10.92) | − 1.273 | 0.203 |
h | 8.25 (7.92, 8.60) | − 2.003 | 0.045 |
i | 7.08 ± 0.87 (5.43, 9.29) | −0.805 | 0.424 |
j | 5.32 ± 0.54 (4.39, 6.54) | 1.625 | 0.109 |
k | 8.92 ± 0.51 (7.82, 10.37) | 0.497 | 0.621 |
l | 8.53 ± 0.81 (6.73, 10.92) | − 0.947 | 0.347 |
m | 5.93 ± 0.97 (4.05, 8.16) | − 0.595 | 0.554 |
n | 9.13 ± 0.99 (6.43, 11.18) | 0.366 | 0.716 |
o | 11.04 ± 1.52 (7.57, 14.27) | 0.389 | 0.698 |
Ds | 15.04 ± 1.12 (12.98, 17.60) | 3.013 | 0.004 |
v | 5.00 (4.76, 5.34) | − 0.529 | 0.597 |
Wy | 11.83 ± 1.13 (9.16, 13.9) | 1.914 | 0.06 |
z | 7.76 ± 0.53 (6.36, 8.87) | 2.738 | 0.008 |
y | 6.27 ± 0.79 (4.21, 8.14) | 1.951 | 0.055 |
1 | 114.14 ± 8.09 (93.37, 129.20) | − 0.243 | 0.809 |
2 | 111.86 (32.55, 67.81) | − 0.108 | 0.914 |
3 | 124.15 (141.48, 189.50) | − 0.16 | 0.873 |
4 | 96.76 ± 7.25 (81.86, 113.87) | 1.102 | 0.274 |
5 | 91.14 ± 7.99 (72.27, 113.12) | − 0.92 | 0.361 |
q | 11.30 ± 1.51 (7.80, 14.78) | − 3.505 | 0.001 |
r | 8.25 (7.31, 9.37) | − 6.525 | 0.000 |
s | 4.05 (3.25, 4.92) | − 4.674 | 0.000 |
p | 8.58 ± 1.01 (6.32, 11.18) | 1.663 | 0.101 |
u | 4.53 (3.94, 5.33) | − 3.297 | 0.001 |
T1 | 7.78 (38.1, 48.14) | − 5.008 | 0.000 |
T2 | 43.43 (32.55, 67.81) | − 5.133 | 0.000 |
T3 | 169.11 (141.48, 189.50) | − 5.606 | 0.000 |
T4 | 28.70 ± 6.55 (13.31, 40.27) | 4.937 | 0.000 |
T5 | 63.59 (59.78, 71.72) | 2.676 | 0.009 |