Table 1.
Patient and treatment characteristics.
|
Study group Radiotherapy (+) |
Control group Radiotherapy (–) |
P | |||
|---|---|---|---|---|---|
| N | % | N | % | ||
| Gender (Male/Female) | 39/18 | 23/11 | 0.94 | ||
| Age | 59 (22-77) | 59 (34–78) | 0.68 | ||
| Surgical resection type | 0.85 | ||||
| Subtotal | 29 | 61.7 | 18 | 38.3 | |
| Total | 28 | 63.6 | 16 | 36.4 | |
| Tumor location | 0.76 | ||||
| Cardia | 15 | 60 | 10 | 40 | |
| Corpus | 15 | 65.2 | 8 | 34.8 | |
| Pylorus | 7 | 58.3 | 5 | 41.7 | |
| Antrum | 20 | 64.5 | 11 | 35.5 | |
| Tumor stage | <0.001 | ||||
| T1 | – | – | 12 | 100.0 | |
| T2 | 9 | 29 | 22 | 71 | |
| T3 | 21 | 100.0 | – | – | |
| T4 | 27 | 100.0 | – | – | |
| Nodal stage | <0.001 | ||||
| N0 | 9 | 20.9 | 34 | 79.1 | |
| N1 | 13 | 100.0 | – | – | |
| N2 | 15 | 100.0 | – | – | |
| N3 | 20 | 100.0 | – | – | |
| Radiotherapy technique | |||||
| 3D-CRT* | 38 | 66.7 | |||
| IMRT** | 10 | 17.5 | |||
| VMAT*** | 9 | 15.8 | |||
| Radiation dose | |||||
| 45.0 Gy/1.8 Gy | 38 | 66.6 | |||
| 46.0 Gy/2 Gy | 19 | 33.4 | |||
*
3D-CRT, Three Dimensional Conformal Radiotherapy;
**
IMRT, Intensity-modulated radiation therapy;
***
VMAT, Volumetric Modulated Arc Therapy.