Table 1 Characteristics of patients (N = 225) and overall survival (OS)
Variables | Patients No. (%) | Deaths No. (%) | MST (Months) | Log-rank P a |
|---|---|---|---|---|
Age | ||||
≤62 years | 111 (49.3) | 72 (46.5) | 25.6 | 0.117 |
>62 years | 114 (50.7) | 83 (53.5) | 21.1 | |
Gender | ||||
Female | 102 (45.3) | 65 (41.9) | 26.7 | 0.036 |
Male | 123 (54.5) | 90 (58.1) | 22.3 | |
Ethnicity | ||||
White | 162 (72.0) | 117 (75.5) | 23.5 | 0.827 |
Non-White | 63 (28.0) | 38 (24.5) | 22.3 | |
Smokeb | ||||
Ever | 205 (91.5) | 143 (92.9) | 23.4 | 0.457 |
Never | 19 (8.5) | 11 (7.1) | 21.1 | |
Histology | ||||
Adenocarcinoma | 79 (35.1) | 48 (31.0) | 27.3 | 0.092 |
Squamous cell | 71 (31.6) | 51 (32.9) | 23.2 | |
Others b | 75 (33.3) | 56 (36.1) | 19.0 | |
KPSc | ||||
90-100 | 51 (25.4) | 34 (22.7) | 25.1 | 0.405 |
80 | 118 (58.7) | 90 (60.0) | 22.1 | |
<80 | 32 (15.9) | 26 (17.3) | 21.1 | |
Tumor stage c | ||||
T0-2 | 127 (57.2) | 81 (52.3) | 26.9 | 0.010 |
T3-4 | 95 (42.8) | 74 (47.7) | 19.2 | |
Node status c | ||||
N0-1 | 59 (26.7) | 35 (22.6) | 29.0 | 0.023 |
N2-3 | 162 (73.3) | 120 (77.4) | 20.7 | |
Chemotherapy | ||||
Yes | 163 (72.4) | 113 (72.9) | 26.9 | 0.407 |
No | 62 (27.6) | 42 (27.1) | 22.1 | |
Radiotherapy dosed | ||||
≤63.0 Gy | 115 (51.1) | 77 (49.7) | 22.7 | 0.706 |
>63.0 Gy | 110 (48.9) | 78 (50.3) | 25.1 |