Table 1.
Demographic and Disease-Related Characteristics of 71 Patients
| Patient Characteristics | N (%) |
|---|---|
| Gender | |
| Male | 41 (57.7) |
| Female | 30 (42.2) |
| Age | Years |
| Mean | 60.2 |
| SD | 12.9 |
| Tumor Characteristics | N (%) |
|---|---|
| Oral Cavity Subsite | |
| Gum | 15 (21.1) |
| Mouth Floor | 10 (14.1) |
| Tongue | 34 (47.9) |
| Retromolar area | 9 (12.7) |
| Other | 3 (4.2) |
| T Stage | |
| 1 | 12 (16.9) |
| 2 | 21 (29.5) |
| 3 | 12 (16.9) |
| 4 | 26 (36.6) |
| N Stage | |
| 0 | 41 (57.7) |
| 1 | 8 (11.2) |
| 2 | 1 (1.4) |
| 2a | 2 (2.8) |
| 2b | 17 (23.9) |
| 2c | 2 (2.8) |
| Histopathologic Characteristics | N (%) |
|---|---|
| Differentiation | |
| Poor | 11 (15.4) |
| Moderate | 27 (38.0) |
| Well | 33 (46.4) |
| Worst Pattern of Invasion (POI)* | |
| POI 1 | 5 (7.0) |
| POI 2 | 19 (26.7) |
| POI 3 | 16 (22.5) |
| POI 4 | 26 (36.6) |
| POI 5 | 5 (7.0) |
| PNI (H&E) | |
| No | 55 (77.4) |
| Yes | 16 (22.5) |
| PNI (H&E + IHC**) | |
| No | 47 (66.2) |
| Yes | 24 (33.8) |
| Expanded N Positivity (H&E + IHC**) | |
| N0, PNI-negative | 30 (42.2) |
| N0, PNI | 11 (15.5) |
| N-positive | 30 (42.2) |
*
Worst POI assessed as in Brandwein-Gensler et al. 2005.
**
PNI assessed using H&E and IHC stains.