Table 3.
The comparisons of clinicopathological characteristics between ER + SR and ER-alone treatments in low-risk group with both LVI(−) and VM(−)
| ER + SR | ER-alone |
p_value (χ2 test) |
||
|---|---|---|---|---|
| (n = 23) | (n = 106) | |||
| Age | ||||
| Median [IQR] | 60.00 [55.00, 65.00] | 62.00 [57.00, 67.00] | 0.201# | |
| Sex | ||||
| Female | 4 (17.4%) | 29 (27.4%) | 0.432^ | |
| Male | 19 (82.6%) | 77 (72.6%) | ||
| SMI ≥ 200 μm | ||||
| Negative | 5 (21.7%) | 29 (27.4%) | 0.769 | |
| Positive | 18 (78.3%) | 77 (72.6%) | ||
| PD | ||||
| Negative | 21 (91.3%) | 63 (59.4%) | 0.003^ | |
| Positive | 2 (8.7%) | 43 (40.6%) | ||
| Location | ||||
| Upper | 6 (26.1%) | 15 (14.2%) | 0.320 | |
| Middle | 8 (34.8%) | 36 (34.0%) | ||
| Lower | 9 (39.1%) | 55 (51.9%) | ||
| Concurrent LNM | ||||
| Negative | 23 (0%) | NA | NA | |
| Positive | 0 (0%) | NA | ||
| Post-resection LNM | ||||
| Negative | 23 (100.0%) | 103 (97.2%) | 1.000^ | |
| Positive | 0 (0.0%) | 3 (2.8%) | ||
| Overall LNM | ||||
| Negative | 23 (100.0%) | 103 (97.2%) | 1.000^ | |
| Positive | 0 (0.0%) | 3 (2.8%) | ||
| Post-resection DOM | ||||
| Negative | 20 (87.0%) | 100 (94.3%) | 0.200^ | |
| Positive | 3 (13.0%) | 6 (5.7%) | ||
IQR interquartile range; PD poor differentiation; LVI lymphovascular invasion; VM vertical margin; SMI Submucosal invasion; LNM lymph node metastasis; DOM distant organ metastasis; NA not available
#Mann–Whitney test
^Fisher’s exact test