Table 1. Patients’ Clinicopathological Characteristics.
| Variables | COR-BMI 0(N %) | COR-BMI 1(N %) | COR-BMI 2(N %) | P value | |
|---|---|---|---|---|---|
| age | <60 | 30 (50.0) | 340 (50.9) | 25 (31.6) | 0.005 |
| ≥60 | 30 (50.5) | 328 (49.1) | 54 (68.4) | ||
| Gender | Female | 1 (1.7) | 19 (2.8) | 3 (3.8) | 0.756 |
| Male | 59 (98.3) | 649 (97.2) | 76 (96.2) | ||
| Smoking status | No | 6 (10.0) | 72 (10.8) | 9 (11.4) | 0.966 |
| Yes | 54 (90.0) | 596 (89.2) | 70 (88.6) | ||
| Drinking status | No | 43 (71.7) | 429 (64.2) | 58 (73.4) | 0.159 |
| Yes | 17 (28.3) | 239 (35.8) | 21 (26.6) | ||
| Neck dissection | No | 40 (66.7) | 481 (72.0) | 56 (70.9) | 0.675 |
| Yes | 20 (33.3) | 187 (28.0) | 23 (29.1) | ||
| Tumor subsite | Supraglottic | 42 (70.0) | 462 (69.2) | 56 (70.9) | 0.946 |
| Glottic | 18(30.0) | 206 (30.8) | 23 (29.1) | ||
| T | 1 | 16 (26.7) | 171 (25.6) | 11 (13.9) | 0.013 |
| 2 | 23(38.3) | 204 (30.5) | 20 (25.3) | ||
| 3 | 11 (18.3) | 161 (24.1) | 33 (41.8) | ||
| 4 | 10 (16.7) | 132 (19.8) | 15 (19.0) | ||
| N | 0 | 50 (83.3) | 539 (80.7) | 62 (78.5) | 0.855 |
| 1 | 4 (6.7) | 61 (9.1) | 10 (12.7) | ||
| 2 | 6 (10.0) | 63 (9.4) | 7 (8.9) | ||
| 3 | 0 (0.0) | 5 (0.7) | 0 (0.0) | ||
| Histological Differentiation | high | 29 (48.3) | 256 (38.3) | 32 (40.5) | 0.525 |
| moderate | 20 (33.3) | 295 (44.2) | 35 (44.3) | ||
| poor | 11 (18.3) | 117 (17.5) | 12 (15.2) | ||
Abbreviations: COR-BMI = Combination of red blood cell distribution width and body mass index; N = node; T = tumor