Variables | Local Control Rates (%) | Univariate Analysis | Multivariate Analysis | ||||
---|---|---|---|---|---|---|---|
n | 2-year | 3-year | p-value | HR (95%CI) | p-value | ||
T stage | T1a + T1b | 195 | 84 | 79 | 0.1263 | - | 0.5903 |
T2a + T2b | 91 | 74 | 64 |  | 1.173 (0.647–2.076) |  | |
Histology | Adenocarcinoma | 185 | 87 | 80 | 0.0002 | - | 0.0044 |
SCC | 80 | 65 | 62 |  | 2.366 (1.311–4.301) |  | |
Gender | Female | 69 | 88 | 85 | 0.0595 | - | 0.2307 |
Male | 217 | 79 | 71 |  | 1.595 (0.751–3.700) |  | |
Location | Upper and Middle | 167 | 82 | 76 | 0.8487 | - | 0.8845 |
Lower | 119 | 79 | 73 |  | 1.042 (0.591–1.808) |  | |
BED (10) IC (Gy) | ≥ 90 | 267 | 84 | 78 | 0.0001 | - | 0.0017 |
< 90 | 19 | 49 | 42 |  | 3.465 (1.655–6.706) |  | |
Margins from GTV to PTV (mm) | ≥ 10 | 158 | 81 | 71 | 0.8043 | - | 0.8723 |
< 10 | 124 | 80 | 78 |  | 1.047 (0.589–1.833) |  |