Table 2. Summary of study variables.
| PNS by the histopathological diagnosis |
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| Variable name (and type) | (+) | (−) | p-value |
| Sample size (n) | 11 (85%) | 2 (15%) | Not applicable |
| Sex: male (binary) | 5 (45%) | 0 (0%) | 0.22a |
| Primary tumour location (categorical) | 0.55a | ||
| Palate | 5 (45%) | 0 (0%) | |
| Sublingual gland | 2 (18%) | 1 (50%) | |
| Lip | 1 (9%) | 1 (50%) | |
| Cheek | 1 (9%) | 0 (0%) | |
| Retromolar | 1 (9%) | 0 (0%) | |
| Angle of mandible | 1 (9%) | 0 (0%) | |
| Age (continuous) | 58.8±18.8 | 52.0±1.41 | 0.63b |
(+), positive findings of PNS; (−), negative findings of PNS; PNS, perineural spread.
a Fisher’s exact probability test.
b Student's t-test.