Skip to main content
. 2022 Aug 25;37(2):871–880. doi: 10.1007/s00464-022-09459-5

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
2 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