Case Histologic status Gender Site Age
(years) 		Habit
High risk
oral lesion 		1 Severe OED M Alveolar ridge 67 S
2 Severe OED F Lip 61 NS
3 Severe OED F Alveolar ridge 66 S
4 Severe OED M Alveolar ridge 77 S
5 Severe OED F Tongue 47 NS
6 CIS M Alveolar ridge 61 S
7 CIS M Alveolar ridge 30 NS
8 CIS M Tongue 61 S
9 CIS M Alveolar ridge 64 S
10 CIS M Alveolar ridge 68 NS
Oral squamous
cell carcinoma 		11 Well differentiated M Mouth floor 79 S
12 Well differentiated M Mouth floor 45 S
13 Well differentiated M Alveolar ridge 52 S
14 Well differentiated M Mouth floor 53 S
15 Well differentiated F Alveolar ridge 46 NS
16 Well differentiated M Mouth floor 58 S
17 Well differentiated M Alveolar ridge 42 S
18 Well differentiated M Lip 70 S
19 Well differentiated M Alveolar ridge 66 S
20 Moderately differentiated M Tongue 49 NS
21 Moderately differentiated M Mouth floor 53 S
22 Moderately differentiated M Tongue 51 S
23 Moderately differentiated M Mouth floor 79 S
24 Moderately differentiated F Alveolar ridge 85 S
25 Moderately differentiated M Tongue 64 S
26 Moderately differentiated M Tongue 74 S
27 Moderately differentiated M Mouth floor 51 S
28 Moderately differentiated M Buccal mucosa 74 NS
29 Moderately differentiated F Alveolar Ridge 89 NS
30 Moderately differentiated M Alveolar ridge 51 S
31 Undifferentiated M Buccal mucosa 50 NS
32 Undifferentiated M Alveolar ridge 67 S
33 Undifferentiated M Alveolar ridge 38 S
34 Undifferentiated M Mouth floor 49 S
35 Undifferentiated M Alveolar ridge 68 NS
36 Undifferentiated M Tongue 46 S

OED = oral epithelial dysplasia; CIS = carcinoma in situ; M = male; F = female; S = smoking; NS = non-smoking.