Figure 1.
Oral cancer development in patient with leukoplakia.
Malignant process of (A) a case of a homogenous leukoplakia and (B) a case of a non-homogenous verrucous leukoplakia.
Figure 2.
Oral cancer-free survival analysis.
(A) by the cohort of overall patients; (B) by patient aged >60 years and < = 60 years; (C) by lateral/ventral tongue and other oral sites; (D) by non-homogenous and homogenous lesion; (E) by low-grade and high-grade dysplasia.
Table 1.
Oral cancer-free survival (OCFS) analysis of risk factors in transformation of oral leukoplakia.
Table 2.
Cox regression analysis of risk factors in transformation of oral leukoplakia.
Table 3.
Number of biopsy times of the study subjects.
Table 4.
Association between multiple times biopsies and factors and outcome.