Table 1.
Baseline population characteristics
| Characteristics | Total (n = 72) | PDL-1 < 1% (n = 23) | PDL-1 1% (n = 49) | p value | PDL-1 < 50% (n = 48) | PDL-1 % (n = 24) | p value |
|---|---|---|---|---|---|---|---|
| Age | 68.8 ± 9.7 | 64.4 ± 11.1 | 67.9 ± 8.9 | 0.174 | 66.1 ± 10.2 | 68.2 ± 8.7 | 0.318 |
| Sex | 0.927 | 0.095 | |||||
| M | 35 (48.6%) | 11(47.8%) | 24 (49.0%) | 20 (41.7%) | 15 (62.5%) | ||
| F | 37 (51.4%) | 12 (52.2%) | 25 (51.0%) | 28 (58.3%) | 9 (37.5%) | ||
| Smoking status | 0.429 | 0.180 | |||||
| Yes | 60 (83.3%) | 18 (78.3%) | 42 (85.7%) | 38 (79.2%) | 22 (91.7%) | ||
| No | 12 (16.7%) | 5 (21.7%) | 7 (14.3%) | 10 (20.8%) | 1 (8.3%) | ||
| T Diameter (mm) | 45.6 ± 22.3 | 46.3 ± 27.4 | 45.4 ± 19.8 | 0.937 | 42.8 ± 22.6 | 51.4 ± 20.9 | 0.150 |
| Location | 0.113 | 0.494 | |||||
| Superior | 44 (61.1%) | 11 (47.8%) | 33 (67.3%) | 28 (58.3%) | 16 (66.7%) | ||
| Inferior | 28 (38.9%) | 12 (52.2%) | 16 (32.7%) | 20 (41.7%) | 8 (33.3%) | ||
| T side | 0.473 | 0.582 | |||||
| Right | 51 (70.8%) | 15 (65.2%) | 36 (73.5%) | 33 (68.8%) | 18 (75.0%) | ||
| Left | 21 (29.2%) | 8 (34.8%) | 13 (26.5%) | 15 (31.3%) | 6 (25.0%) | ||
| Histology | 0.601 | 0.381 | |||||
| ADK | 47 (65.3%) | 16 (69.6%) | 31 (63.3%) | 33 (68.8%) | 14 (58.3%) | ||
| SCC | 25 (34.7%) | 7 (30.4%) | 18 (36.7%) | 15 (31.3%) | 10 (41.7%) | ||
| Clinical stage | 0.769 | 0.706 | |||||
| IIIA | 22 (30.6%) | 7 (30.4%) | 15 (30.6%) | 15 (31.3%) | 7 (29.2%) | ||
| IIIB | 20 (27.8%) | 8 (34.8%) | 12 (25.5%) | 15 (31.3%) | 5 (20.8%) | ||
| IIIC | 6 (8.3%) | 2 (8.7%) | 4 (8.2%) | 4 (8.3%) | 2 (8.3%) | ||
| IV | 24 (33.3%) | 6 (26.1%) | 18 (36.7%) | 14 (29.2%) | 10 (41.7%) |