Characteristic | All patients (N = 279) | Without LNM (n = 193) | With LNM (n = 86) | P value |
---|---|---|---|---|
Age, years | ||||
≤ 60 > 60 Median (IQR) | 124 (44.4%) 155 (55.6%) 62 (57.67) | 77 (39.9%) 116 (60.1%) 63 (58.68) | 47 (54.7%) 39 (45.3%) 59 (53.65) | 0.002 |
Gender | ||||
Male Female | 182 (65.2%) 97 (34.8%) | 125 (64.8%) 68 (35.2%) | 57 (66.3%) 29 (33.7%) | 0.807 |
Smoking indexa | ||||
< 400 ≥ 400 | 156 (55.9%) 123 (44.1%) | 109 (56.5%) 84 (43.5%) | 47 (54.7%) 39 (45.3%) | 0.777 |
ECOG PS | ||||
0–1 > 1 | 202 (72.4%) 77 (27.5%) | 144 (74.6%) 49 (25.3%) | 58 (67.4%) 28 (32.5%) | 0.147 |
Tumor diameter (cm) | ||||
Median (IQR) | 3.0 (2.5, 4.0) | 3.0 (2.5, 4.0) | 3.5 (2.8, 4.7) | <0.001 |
Histological type | ||||
LUSC LUAD Other | 95 (34.1%) 179 (64.2%) 5 (1.8%) | 61 (31.6%) 128 (66.3%) 4 (2.1%) | 34 (39.5%) 51 (59.3%) 1 (1.2%) | 0.180 |
T stage | ||||
T1 T2 T3 T4 | 88 (31.5%) 161 (57.7%) 16 (5.7%) 14 (5.0%) | 73 (37.8%) 100 (51.8%) 11 (5.7%) 9 (4.7%) | 15 (17.4%) 61 (70.9%) 5 (5.8%) 5 (5.8%) | 0.004 |
N stage | ||||
N0 N1 N2 N3 | 193 (69.2%) 49 (17.6%) 37 (13.3%) 0 (0%) | 193 (100.0%) 0 (0%) 0 (0%) 0 (0%) | 0 (0%) 49 (57.0%) 37 (43.0%) 0 (0%) | <0.001 |
AJCC Stage | ||||
IA IB IIA IIB IIIA IIIB | 72 (25.8%) 83 (29.7%) 18 (6.5%) 52 (18.6%) 50 (17.9%) 4 (1.4%) | 72 (37.3%) 83 (43.0%) 18 (9.3%) 10 (5.2%) 10 (5.2%) 0 (0%) | 0 (0%) 0 (0%) 0 (0%) 42 (48.8%) 40 (46.5%) 4 (4.7%) | <0.001 |