Table 1 Patient characteristics
Patient characteristics N (%) | Primary Cohort (N = 120) | Validation Cohort (N = 41) |
|---|---|---|
Age at diagnosis [year] | ||
• ≤ 60 | 87 (72.5) | 24 (58.5) |
• > 60 | 33 (27.5) | 17 (41.5) |
Gender | ||
• Male | 71 (59.2) | 23 (56.1) |
• Female | 49 (40.8) | 18 (43.9) |
Tumor size | ||
• T1 | 59 (49.2) | 21 (51.2) |
• T2 | 61 (50.8) | 20 (48.8) |
Tumor Location | ||
• Anterior/Middle | 76 (63.3) | 24 (58.5) |
• Posterior | 44 (36.7) | 17 (41.5) |
MRI parameters [mm] | ||
1.MRI-assessed tumor thickness in 3D | ||
• Tumor thickness in axial view (aTT) | ||
≤ 8.5 mm | 81 (67.5) | 25 (61) |
> 8.5 mm | 39 (32.5) | 16 (39) |
• Tumor thickness in coronal view (cTT) | ||
≤ 11 mm | 69 (57.5) | 11 (26.8) |
> 11 mm | 51 (42.5) | 30 (73.2) |
• Tumor thickness in sagittal view (sTT) | ||
≤ 12 mm | 75 (62.5) | 19 (46.3) |
> 12 mm | 45 (37.5) | 22 (53.7) |
2. Paralingual distance (PLD) | ||
≤ 5 mm | 60 (50) | 24 (58.5) |
> 5 mm | 60 (50) | 17 (41.5) |
3. Sublingual distance (SLD) | ||
≤ 4 mm | 73 (60.8) | 28 (68.3) |
> 4 mm | 47 (39.2) | 13 (31.7) |
Pathological node status | ||
• pN0 | 88 (73.3) | 29 (70.7) |
• pN+ | 32 (26.7) | 12 (29.3) |
Postoperative pathological thickness* | ||
• ≤ 5 mm | 23 (19.2) | 4 (9.8) |
• > 5 mm to ≤10 mm | 83 (69.2) | 31 (75.6) |
• > 10 mm | 14 (11.7) | 6 (14.6) |
Cell-differentiation | ||
• Well | 61 (50.8) | 26 (63.4) |
• Moderate/Poor | 59 (49.2) | 15 (36.6) |