Patient characteristics and associations between lymph node metastases and variables
| Patient Characteristics | Lymph Node Metastases | |||
|---|---|---|---|---|
| Absent (n = 28) | Present (n = 15) | P value | ||
| Sex, N (%) | ||||
| Male | 29 (67) | 20 (69) | 9 (31) | .67 |
| Female | 14 (33) | 8 (57) | 6 (43) | |
| Age (mean ± SD) | 58 ± 15 | 57 ± 14 | 59 ± 16 | .48 |
| Performance status | ||||
| <2 | 35 (81) | 23 (68) | 12 (32) | >.99 |
| ≥2 | 8 (19) | 5 (63) | 3 (38) | |
| T classification, N (%) | ||||
| T1–2 | 34 (79) | 26 (76) | 8 (24) | <.01 |
| T3–4 | 9 (21) | 2 (22) | 7 (78) | |
| N classification, N (%) | ||||
| N0 | 32 (74) | 25 (78) | 7 (22) | <.01 |
| N1–3 | 11 (26) | 3 (27) | 8 (72) | |
| Differentiation, N(%) | ||||
| Well-moderate | 38 (88) | 25 (66) | 13 (34) | >.99 |
| Poor | 5 (12) | 3 (60) | 2 (40) | |
| Tumor thickness (mm) (mean ± SD) | 11.7 ± 7.3 | 8.5 ± 4.5 | 17.8 ± 7.8 | <.0001 |
| Sublingual distance (mm) (mean ± SD) | 4.0 ± 4.4 | 5.5 ± 4.4 | 1.1 ± 2.4 | <.005 |
| Paralingual distance (mm) (mean ± SD) | 4.7 ± 5.1 | 7.2 ± 3.3 | 0 ± 4.5 | <.0001 |