Authors Weathers
et al. (1974) [1]
Houston
(1982) [3]
Bakos
(1992) [8]
Magnusson
et al. (1995) [2]
Total
N 108 464 116 103 791
Sex
Male 49 (45%) 195 (42%) 46 (40%) 55 (53%) 345 (44%)
Female 59 (55%) 269 (58%) 70 (60%) 48 (47%) 446 (56%)
Race
Caucasian 69 (64%) 415 (89.4%) 113 (97%) - 597 (76.5%)
Black 5 (5%) 19 (4.1%) - - 24 (3%)
Other - 2 (0.5%) 3 (3%) - 5 (0.5%)
Not specified 34 (31%) 28 (6%) - 103 165 (20%)
Age
0 - 10 19 (18%) 81 (17.5%) 6 (5%) 16 (15.5%) 122 (15.4%)
10 - 20 26 (24%) 114 (24.6%) 7 (6%) 34 (33%) 181 (22.9%)
20 - 30 21 (19%) 74 (15.9%) 15 (13%) 15 (14.6%) 125 (15.8%)
30 - 40 8 (7%) 59 (12.7%) 25 (22%) 13 (12.7%) 105 (13.3%)
40 - 50 18 (17%) 47 (10.1%) 24 (21%) 8 (7.7%) 97 (12.3%)
50 - 60 6 (6%) 40 (8.6%) 13 (11%) 11 (10.7%) 70 (8.8%)
60 - 70 8 (7%) 21 (4.5%) 20 (17%) 3 (2.9%) 52 (6.6%)
70 - 80 2 (2%) 8 (1.7%) 6 (5%) 3 (2.9%) 19 (2.4%)
Not specified - 20 (4.4%) - - 20 (2.5%)
Location
Gingiva 48 (45%) 227 (48.9%) 32 (29%) 55 (53.4%) 362 (45.8%)
Maxilla 13 (12%) 84 (18.1%) - 17 (16.6%) 114 (34%)
Mandible 35 (33%) 143 (30.8%) - 38 (36.8%) 216 (65%)
Buccal mucosa 16 (15%) 27 (5.8%) 23 (20%) 12 (11.7%) 78 (9.9%)
Palate 16 (15%) 86 (18.5%) 16 (13%) 4 (3.9%) 122 (15.4%)
Tongue 18 (16%) 102 (22%) 22 (19%) 24 (23.3%) 166 (21%)
Lips 2 (1.5%) 12 (2.5%) 5 (4%) 1 (0.9%) 20 (2.5%)
Floor of mouth 1 (1%) 1 (0.3%) 2 (2%) - 4 (0.5%)
Not specified 4 (4%) 7 (1.5%) - 7 (6.8%) 18 (2.3%)
Other 3 (2.5%) 2 (0.5%) 16 (13%) - 21 (2.6%)

N = number of number of patients.