Table 3.
Groups | Rate (%) | χ2 (Mann-Whitney test) | Z | P value |
---|---|---|---|---|
OSFWD | 16 (26.7) | OSFWD vs OLKWSD | 4.970 | 0.0001* |
OSFWTD | 14 (23.3) | OSFWD vs OLKWMD | 4.476 | 0.0001* |
OLKWSD | 18 (30.0) | OSFWTD vs OLKWSD | 1.899 | 0.058* |
OLKWMD | 12 (20.0) | OSFWTD vs OLKWMD | 2.512 | 0.012* |
OSFWD vs OSFWTD | 4.543 | 0.0001* |
OSFWTD, oral submucous fibrosis without dysplasia; OSFWD, oral submucous fibrosis with dysplasia; OLKWMD, oral leukoplakia with mild dysplasia; OLKWD, oral leukoplakia with moderate/sever dysplasia.
*Statistically significant at P<0.05.