Table 2 Baseline patients’ characteristics of each group
SP (n = 159) | Non-SP (n = 157) | p value | |
|---|---|---|---|
Gender, n (%) | |||
Male | 119 (74.8%) | 118 (75.1%) | 1.000 |
Female | 40 (25.2%) | 39 (24.9%) | |
Age, median (range) | 63 (39–74) | 64 (32–74) | 0.690 |
≥ 70 | 27 | 35 | |
< 70 | 132 | 122 | 0.259 |
Stage, n (%) | |||
IIIA | 84 (52.8%) | 78 (49.7%) | 0.653 |
IIIB | 75 (47.2%) | 79 (50.3%) | |
Histological type | |||
Adenocarcinoma | 109 (68.6%) | 105 (66.9%) | 0.810 (adeno versus non-adeno) |
Squamous cell carcinoma | 31 (19.5%) | 28 (17.8%) | |
Adenosquamous cell | 1 (0.6%) | 0 (0%) | |
NOS | 15 (9.4%) | 21 (13.4%) | |
Others | 3 (1.9%) | 3 (1.9%) | |
Smoking history | |||
Never | 29 (18.2%) | 26 (16.6%) | 0.767 |
Current/former | 130 (81.8%) | 131 (83.4%) | |
PS | |||
0 | 103 (64.8%) | 94 (59.9%) | 0.417 |
1 | 56 (35.2%) | 63 (40.1%) |