Table 2.
Comparison of AJCC stage in different groups of LCC
| Variables | Stage I | Stage II | Stage III | Stage IV | Total | P‐value |
|---|---|---|---|---|---|---|
| Age, n (%) | 0.000 | |||||
| ≤50 | 27 (10.5) | 17 (6.6) | 93 (36.2) | 120 (46.7) | 257 (100) | |
| 51–60 | 79 (12.0) | 58 (8.8) | 239 (36.4) | 280 (42.7) | 656 (100) | |
| 61–70 | 167 (16.4) | 105 (10.3) | 315 (30.9) | 431(42.3) | 1018 (100) | |
| 71–80 | 189 (20.8) | 97 (10.7) | 277 (30.5) | 344 (37.9) | 907 (100) | |
| >80 | 63 (17.5) | 43 (12.0) | 117 (32.6) | 136 (37.9) | 359 (100) | |
| Sex, n (%)† | 0.000 | |||||
| Female | 255 (19.5) | 133 (10.2) | 421 (32.2) | 497 (38.1) | 1306 (100) | |
| Male | 270 (14.3) | 187 (9.9) | 620 (32.8) | 814 (43.0) | 1891 (100) | |
| Race, n (%) | 0.083 | |||||
| White | 448 (17.4) | 253 (9.8) | 824 (32.0) | 1046 (40.7) | 2571 (100) | |
| Black | 51 (11.1) | 45 (9.8) | 167 (36.2) | 198 (43.0) | 461 (100) | |
| Others | 26 (15.8) | 22 (13.3) | 50 (30.3) | 67 (40.6) | 165 (100) | |
| Pathological differentiation, n (%)† | 0.000 | |||||
| Well/moderately | 22 (43.1) | 5 (9.8) | 9 (17.6) | 15 (29.4) | 51 (100) | |
| Poorly/undifferentiated | 503 (16.0) | 315 (10.0) | 1032 (32.8) | 1296 (41.2) | 3146 (100) | |
| Primary, n (%) | 0.000 | |||||
| Upper lobe | 338 (18.2) | 192 (10.3) | 614 (33.0) | 717 (38.5) | 1861 (100) | |
| Middle lobe | 29 (20.9) | 18 (12.9) | 38 (27.3) | 54 (38.8) | 139 (100) | |
| Lower lobe | 137 (18.0) | 88 (11.6) | 234 (30.7) | 302 (39.7) | 761 (100) | |
| Others | 21 (4.8) | 22 (5.0) | 155 (35.6) | 238 (54.6) | 436 (100) | |
P‐value for Kruskal‐Wallis tests except †Wilcoxon tests.
LCC, large cell carcinoma.