Table 1. Patient characteristics.
| Characteristic | 2D-RT group (n=72, %) | IMRT group (n=36, %) | P-value |
|---|---|---|---|
| Age, years |
|
|
1.00a |
| <50 | 54 (75.0%) | 27 (75.0%) | |
| ⩾50 |
18 (25.0%) |
9 (25.0%) |
|
| Gender |
|
|
1.000a |
| Male | 54 (75.0%) | 27 (76.1%) | |
| Female |
18 (25.0%) |
9 (23.6%) |
|
| Pathologic features |
|
|
0.833b |
| WHO type 1 | 1 (1.4%) | 0 (0.0%) | |
| WHO type 2 |
71 (98.6%) |
36 (100.0%) |
|
| T categoryc |
|
|
0.059a |
| T1–2 | 22 (30.6%) | 5 (13.9%) | |
| T3–4 |
50 (69.4%) |
31 (86.1%) |
|
| N categoryc |
|
|
0.237a |
| N0–1 | 55 (76.4%) | 31 (86.1%) | |
| N2–3 |
17 (23.6%) |
5 (13.9%) |
|
| Stage groupc |
|
|
0.381a |
| I–II | 15 (20.8%) | 5 (13.9%) | |
| III–IV |
57 (79.2%) |
31 (86.1%) |
|
| Chemotherapy |
|
|
0.005a |
| CRT | 43 (59.7%) | 31 (86.1%) | |
| RT alone |
29 (40.3%) |
5 (13.9%) |
|
| Hypertension |
|
|
0.420b |
| Yes | 6 (8.3%) | 1 (2.8%) | |
| No |
66 (91.7%) |
35 (97.2%) |
|
| Diabetes |
|
|
0.109b |
| Yes | 0 (0.0%) | 2 (5.6%) | |
| No |
72 (100.0%) |
34 (94.4%) |
|
| Smoking |
|
|
0.722a |
| Yes | 29 (59.2%) | 16 (44.4%) | |
| No | 42 (40.8%) | 20 (55.6%) |
Abbreviations: 2D-RT=two-dimensional radiotherapy; CRT=chemoradiotherapy; IMRT=intensity-modulated radiotherapy; RT=radiotherapy; WHO=World Health Organisation.
a
P-value calculated by the χ2-test.
b
P-value calculated by Fisher's exact test.
c
According to the American Joint Committee on Cancer, 7th edition.