Table 1.
Demographic and clinical‐pathological features of LSqCC patients
| Covariate | Level | Overall patients (n = 501) | Survival status | ||
|---|---|---|---|---|---|
| Alive (n = 285) | Dead (n = 216) | p‐value | |||
| Age | 66.37 ± 12.72, 68 (61,73) | 65.25 ± 13.42, 67 (60,73) | 67.84 ± 11.61, 69 (63,74) | .02 | |
| Gender | Male | 371 (74.05%) | 204 (71.58%) | 167 (77.31%) | .17 |
| Female | 130 (25.95%) | 81 (28.42%) | 49 (22.69%) | ||
| Race | Asian | 9 (2.34%) | 5 (2.30%) | 4 (2.34%) | .03 |
| Black | 30 (7.73%) | 10 (4.61%) | 20 (11.70%) | ||
| White | 349 (89.95%) | 202 (93.09%) | 147 (85.96%) | ||
| Smoke | Yes | 222 (44.31%) | 132 (46.32%) | 90 (41.67%) | .30 |
| No | 279 (55.69%) | 153 (53.68%) | 126 (58.33%) | ||
| LOS* | 39.77 ± 12.13, 40 (30,50) | 40 ± 11.36, 40 (32,50) | 39.43 ± 13.23, 41 (30,50) | .73 | |
| Stage | I | 244 (49.09%) | 144 (50.88%) | 100 (46.73%) | .10 |
| II | 162 (32.60%) | 97 (34.28%) | 65 (30.37%) | ||
| III | 84 (16.90%) | 40 (14.13%) | 44 (20.56%) | ||
| IV | 7 (1.41%) | 2 (0.71%) | 5 (2.34%) | ||
| Morphology (ICD−0–3) | Squamous cell carcinoma, NOS (8070/3) | 466 (93.01%) | 268 (94.04%) | 198 (91.67%) | .07 |
| Squamous cell carcinoma, keratinizing (8071/3) | 13 (2.59%) | 3 (0.30%) | 10 (4.61%) | ||
| Squamous cell carcinoma, large cell, nonkeratinizing (8072/3) | 3 (0.60%) | 2 (0.70%) | 1 (0.46%) | ||
| Squamous cell carcinoma, small cell, nonkeratinizing (8073/3) | 1 (0.20%) | 0 (0.00%) | 1 (0.46%) | ||
| Papillary squamous cell carcinoma (8052/3) | 4 (0.80%) | 2 (0.70%) | 2 (0.93%) | ||
| Basaloid squamous cell carcinoma (8083/3) | 14 (2.79%) | 10 (3.51%) | 4 (1.85%) | ||
LOS* indicated the length of smoking year in patients who have smoking history.