From: Malignant transformation of oral leukoplakia: a retrospective cohort study of 218 Chinese patients
 | Oral leukoplakia, n (%) |  | |
---|---|---|---|
Characteristic | UT | MT | P-value |
 | n = 179 | n = 39 |  |
Age, y | Â | Â | 0.846 |
   < 60 | 128 (71.5) | 27 (69.2) |  |
   >= 60 | 51 (28.5) | 12 (30.8) |  |
Gender | Â | Â | 0.113 |
   Female | 84 (46.9) | 24 (61.5) |  |
   Male | 95 (53.1) | 15 (38.5) |  |
Site | Â | Â | 0.051 |
   Tongue | 86 (48.0) | 26 (66.7) |  |
   Others sites | 93 (52.0) | 13 (33.3) |  |
Diet habit | Â | Â | 0.179 |
   Bland | 143 (84.6) | 34 (94.4) |  |
   Spicy | 26 (15.4) | 2 (5.6) |  |
   Missing | 10 (-) | 3 (-) |  |
Smoking | Â | Â | 0.176 |
   Never | 115 (66.9) | 30 (78.9) |  |
   Past and present | 57 (33.1) | 8 (21.1) |  |
   Missing | 7 (-) | 1 (-) |  |
Ethanol intake | Â | Â | 0.484 |
   Never | 159 (93.5) | 34 (89.5) |  |
   Past and present | 11 (6.5) | 4 (10.5) |  |
   Missing | 9 (-) | 1 (-) |  |