Table 4.
Subgroup analysis according to preoperative treatment response
| |
Good responders |
|
|
|---|---|---|---|
| CRM > 1.5 mm | CRM ≤ 1.5 mm | p† | |
| Number of patients |
63 |
10 |
|
| 5-year OS |
93.3 |
90.0 |
.466 |
| 5-year DFS |
87.6 |
90.0 |
.948 |
| 5-year LRC |
94.9 |
100.0 |
.591 |
| 5-year DMFS |
89.2 |
90.0 |
.817 |
| |
Poor responders |
|
|
| |
CRM > 1.5 mm |
CRM ≤ 1.5 mm |
p† |
| Number of patients |
56 |
22 |
|
| 5-year OS |
87.4 |
48.4 |
<.001 |
| 5-year DFS |
76.0 |
30.5 |
<.001 |
| 5-year LRC |
85.7 |
58.0 |
<.001 |
| 5-year DMFS | 78.2 | 33.0 | <.001 |
values are percentages unless indicated otherwise of patients; †log rank test. OS, overall survival; DFS, disease-free survival; LRC, locoregional control rates; DMFS, distant metastasis-free survival; CRM, circumferential resection margin.