| Cohort 1 (n%) | Cohort 2 (n%) | t/χ2 | P |
---|---|---|---|---|
Patient Number | 30 | 128 | Â | Â |
Sample Number | 60 | 256 | Â | Â |
Age | 64.13 ± 11.05 | 60.10 ± 9.58 | 2.01 | 0.05* |
Gender | Â | Â | 0.72 | 0.40 |
 Female | 21 (70.00) | 79 (61.72) |  |  |
 Male | 9 (30.00) | 49 (38.28) |  |  |
Smoking status | Â | Â | 1.70 | 0.19 |
 Non-smoker | 21 (70.00) | 73 (57.03) |  |  |
 Smoker | 9 (30.00) | 55 (42.97) |  |  |
Lesion maximum diameter (cm) | 2.04 ± 0.66 | 3.33 ± 1.88 | -6.26 | < 0.01** |
Lesion site | Â | Â | 10.93 | 0.03* |
 Right upper lobe | 14(48.28) | 31 (24.22) |  |  |
 Right middle lobe | 2 (6.90) | 15 (11.72) |  |  |
 Right lower lobe | 2 (6.90) | 27 (21.09) |  |  |
 Left upper lobe | 2 (6.90) | 26 (20.31) |  |  |
 Left lower lobe | 9 (31.03) | 29 (22.66) |  |  |
TNM Stage |  |  | 45.86 | < 0.01** |
 Stage 0 | 8 (26.67) | 0 (0.00) |  |  |
 Stage I | 22 (73.33) | 80 (62.50) |  |  |
 Stage II | 0 (0.00) | 11 (8.59) |  |  |
 Stage III | 0 (0.00) | 21 (16.41) |  |  |
 Stage IV | 0 (0.00) | 16 (12.50) |  |  |