Mean SD SD mean
Oral leukoplakia Mild OED 35.17 19.27 6.423
Moderate OED 33.35 9.352 46.99
Severe OED 17.71 4.643 2.322
Low risk 33.86 14.16 4.089
High risk 17.71 4.643 2.322
Oral squamous
cell carcinoma		 Well differentiated 29.77 8.316 2.94
Moderately differentiated 17.83 13.04 3.765

OSCC = oral squamous cell carcinoma; OL = oral leukoplakia; OED = oral epithelial dysplasia; SD = standard deviation.