Table 2.
Relationship between clinicopathologic features and lymph nodes metastases in 90 patients
| Parameters | Total (n = 90) |
ypN0 (n = 63) |
ypN+ (n = 27) |
P value |
|---|---|---|---|---|
| Age (years) | 55 (24–82)* | 56(27–82) * | 55(24–75) * | 0.926 a |
| Sex | 0.830 b | |||
| Man | 68 (75.6%) | 48(76.2%) | 20(74.1%) | |
| Woman | 22 (24.4%) | 15(23.8%) | 7(25.9%) | |
| Tumor location# | 0.777 c | |||
| Upper | 11(12.2%) | 7(11.1%) | 4(14.8%) | |
| Middle | 51(56.7%) | 35(55.6%) | 16(59.3%) | |
| Lower | 28(31.1%) | 21(33.3%) | 7(25.9%) | |
| Histological subtype | 0.234 c | |||
| Nonmucinous adenocarcinoma | 82(91.1%) | 59(93.7%) | 23(85.2%) | |
| Mucinous adenocarcinoma | 8(8.9%) | 4(6.3%) | 4(14.8.%) | |
| Differentiation | 0.808 c | |||
| Well | 1(1.1%) | 1(1.6%) | 0(0.0%) | |
| Moderate | 78(86.7%) | 55(87.3%) | 23(85.2%) | |
| Poor | 11(12.2%) | 7(11.1%) | 4(14.8%) | |
| ypT stage | 0.004 b | |||
| ypT0-2 | 44(48.9%) | 37(58.7%) | 7(25.9%) | |
| ypT3-4 | 46(51.1%) | 26(41.3%) | 20(74.1%) |
* Date are medians and ranges in parentheses
# According to the distance from the most caudal border of the rectal tumor to the anal verge on MRI: upper, > 10 cm; middle, 5–10 cm; lower, < 5 cm
a Mann-Whitney U test, bχ2 test, c Fisher’s exact test
yp, post-neoadjuvant treatment pathological feature