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Demographic data of the studied cases by tissue type
| Tissue type | Number | Male | Female | Age (years) |
|---|---|---|---|---|
| Mean ± SD | ||||
| Normal oral mucosa | 10 | 3 | 6 | 56.8 ± 16.6a |
| OL without dysplasia | 27 | 18 | 9 | 54.8 ± 12.2 |
| OL with dysplasia | 42 | 20 | 22 | 61 ± 14.4b |
| OSCC | 36 | 24 | 12 | 59.1 ± 15.7 |
OL = oral leukoplakia
OSCC = oral squamous cell carcinoma
aThe age and sex of one case are not available
bThe age of 3 cases are not available
