Table 1.
Patient characteristics
| Characteristic | Total | 2D-RT | 3D-CRT | p-value |
|---|---|---|---|---|
| Gender | 0.491a) | |||
| Male | 17 (51.5) | 6 (42.9) | 11 (52.9) | |
| Female | 16 (48.5) | 8 (57.1) | 8 (42.1) | |
| Age (yr) | ||||
| Median (range) | 51 (17–74) | 52 (17–74) | 51 (33–60) | 0.558b) |
| ≤60 | 29 (87.8) | 12 (85.7) | 17 (89.5) | 0.744a) |
| >60 | 4 (12.2) | 2 (14.3) | 2 (10.5) | |
| HP status | 0.728a) | |||
| Positive | 16 (48.5) | 6 (42.9) | 10 (52.6) | |
| Negative | 17 (51.5) | 8 (57.1) | 9 (47.4) | |
| Clinical stage | 0.561a) | |||
| IE | 30 (90.9) | 12 (85.7) | 18 (94.7) | |
| IIE | 3 (9.1) | 2 (14.3) | 1 (5.3) | |
| IPI score | 0.241a) | |||
| 0 | 27 (81.8) | 10 (71.4) | 17 (89.5) | |
| 1 | 5 (15.2) | 3 (21.4) | 2 (10.5) | |
| 2 | 1 (3.0) | 1 (7.2) | 0 (0) | |
| Size (cm) | 0.074a) | |||
| ≤3 | 11 (33.3) | 3 (21.4) | 8 (42.1) | |
| 3.1-7 | 9 (27.3) | 7 (50.0) | 2 (10.5) | |
| >7 | 1 (3.0) | 0 (0) | 1 (5.3) | |
| Multiple or diffuse | 12 (36.4) | 4 (28.6) | 8 (42.1) | |
| Location of tumor | 0.248a) | |||
| Body | 18 (54.5) | 10 (71.4) | 8 (42.1) | |
| Pylorus-antrum | 2 (6.1) | 1 (7.2) | 1 (5.3) | |
| Fundus-cardia | 1 (3.0) | 0 (0) | 1 (5.3) | |
| Multiple or diffuse | 12 (36.4) | 3 (21.4) | 9 (47.3) | |
| Depth of invasion | 0.588a) | |||
| Mucosa | 4 (12.1) | 2 (14.3) | 2 (10.5) | |
| Submucosa | 12 (36.4) | 7 (50.0) | 5 (26.3) | |
| Muscularis | 2 (6.0) | 0 (0) | 2 (10.5) | |
| Subserosa/serosa | 3 (9.1) | 1 (7.1) | 2 (10.5) | |
| Unknown | 12 (36.4) | 4 (38.6) | 8 (42.2) |
Values are presented as number (%).
2D-RT, two-dimensional radiotherapy; 3D-CRT, three-dimensional conformal radiotherapy; HP, Helicobacter pylori; IPI, international prognostic index.
a)
Fisher exact test (two-tail).
b)
t-test.