| Variables | Squamous cell carcinoma | Adenocarcinoma | Adenoacanthoma | Others | P value |
|---|
| (n = 158) | (n = 215) | (n = 30) | (n = 55) |
|---|
| −2578C > A (%) | | | | | 0.964 |
| AA | 10 (6.33) | 11 (5.12) | 1 (3.33) | 2 (3.64) | |
| AC | 65 (41.14) | 82 (38.14) | 12 (40.00) | 23 (41.82) | |
| CC | 83 (52.53) | 122 (56.74) | 17 (56.67) | 30 (54.55) | |
| −1154G > A (%) | | | | | 0.814 |
| AA | 5 (3.16) | 4 (1.86) | 0 (0.00) | 1 (1.82) | |
| AG | 50 (31.65) | 56 (26.05) | 8 (26.67) | 17 (30.91) | |
| GG | 103 (65.19) | 155 (72.09) | 22 (73.33) | 37 (67.27) | |
| −460 T > C (%) | | | | | 0.969 |
| CC | 0 (6.33) | 12 (5.58) | 1 (3.33) | 2 (3.64) | |
| CT | 65 (41.14) | 82 (38.14) | 12 (40.00) | 23 (41.82) | |
| TT | 83 (52.53) | 121 (56.28) | 17 (56.67) | 30 (54.55) | |
| +405G > C (%) | | | | | 0.990 |
| CC | 29 (18.35) | 42 (19.53) | 7 (23.33) | 9 (16.36) | |
| CG | 81 (51.27) | 108 (50.23) | 14 (46.67) | 30 (54.55) | |
| GG | 48 (30.38) | 65 (30.23) | 9 (30.00) | 16 (29.09) | |
