| Age(years)1 | Mean Duration(months)2 | Duration Range3 | Malignancy(%)4 | Transformation rate(CI)5 |
---|---|---|---|---|---|
Epithelial dysplasia | 46.70(11.51) | 38.18(27.90) | 6.53–101.2 | 8 (24.24) | 7.62 (2.34–12.90) |
Verrucous hyperplasia | 46.66(11.11) | 41.87(42.47) | 6.07–185.5 | 9 (20.00) | 5.21 (1.60–8.82) |
Hyperkeratosis or epithelial hyperplasia | 42.51(12.98) | 32.94(32.81) | 6.13–135.23 | 6 (8.57) | 3.26 (0.65–5.87) |
OSF | 39.50(21.05) | 71.13(50.45) | 27.27–140.97 | 0 (0.00) | - |