Table 1.
Characteristics of patients by treatment group (n, %)
| Characteristic | Group Ia 73 | Group IIb 92 | P-value |
|---|---|---|---|
| ECOG performance status | |||
| 0 or 1 | 60/73 (82.2%) | 71/92 (77.2%) | 0.429 |
| >1 | 13/73 (17.8%) | 21/92 (22.8%) | |
| Sex | |||
| Male | 43/73 (58.9%) | 64/92 (69.6%) | 0.154 |
| Female | 30/73 (41.1%) | 28/92 (30.4%) | |
| Stage | |||
| IIIA | 35/73 (47.9%) | 40/92 (43.5%) | 0.567 |
| IIIB | 38/73 (52.1%) | 52/92 (56.5%) | |
| Histologic type | |||
| Squamous cell carcinoma | 32/73 (43.8%) | 21/92 (22.8%) | 0.002 |
| Adenocarcinoma | 31/73 (42.5%) | 64/92 (69.6%) | |
| Other | 10/73 (13.7%) | 7/92 (7.6%) | |
| Initial treatment | |||
| R | 39/73 (53.4%) | 45/92 (48.9%) | 0.565 |
| R+C | 34/73 (46.6%) | 47/92 (51.1%) | |
| Smoking status | |||
| Smoker | 38/73 (52.1%) | 40/92 (43.5%) | 0.273 |
| Nonsmoker | 35/73 (47.9%) | 52/92 (56.5%) | |
Notes:
a
Patients ≥70 years old, n=73.
b
Patients <70 years old, n=92.
Abbreviations: ECOG, Eastern Cooperative Oncology Group; R, radiotherapy; R+C, radiotherapy and chemotherapy.