Table 1 Clinical and demographic characteristics of lung cancer patients
Characteristics | Total (n = 260) | LN− (n = 109) | LN + (n = 151) |
|---|---|---|---|
Gender | Â | Â | Â |
 Male | 205 (78.85) | 85 (77.98) | 120 (79.47) |
 Female | 55 (21.15) | 24 (22.02) | 31 (20.53) |
Age (mean ± SD, y) | 62.15 ± 8.62 | 64.94 ± 6.98 | 60.10 ± 9.12 |
Tumor histological type | Â | Â | Â |
 ADC | 145 (55.77) | 56 (51.37) | 89 (58.94) |
 SCC | 96 (36.92) | 48 (44.04) | 48 (31.79) |
 Others | 19 (7.31) | 5 (4.59) | 14 (9.27) |
T stage | Â | Â | Â |
 T1 | 126 (48.46) | 66 (60.55) | 60 (39.73) |
 T2 | 83 (31.92) | 26 (23.85) | 57 (37.75) |
 T3 | 34 (13.08) | 13 (11.93) | 21 (13.91) |
 T4 | 17 (6.54) | 4 (3.67) | 13 (8.61) |
N stage | Â | Â | Â |
 N0 | 109 (41.92) | 109 (100) | 0 |
 N1 | 53 (20.38) | 0 | 53 (35.10) |
 N2 | 98 (37.69) | 0 | 98 (64.90) |