Table 2 The prevalence rates (and Wilson 95% CIs for prevalence rates) of 44 nonmetric traits/anomalies (and crowding) in the sample, men, and women
Trait/abnormality | Percent (n = 331) | Wilson 95% CI | Percent (n = 331) | P | ||||
|---|---|---|---|---|---|---|---|---|
With trait (%) | Without trait (%) | |||||||
Women | Men | Women | Men | |||||
Hyperdontia | 0.6 | 0.2 | 2.2 | 0.3 | 0.3 | 77.3 | 22.1 | 0.347 |
Microdontia | 38.7 | 33.6 | 44.0 | 33.5 | 5.1 | 44.1 | 17.2 | 0.002 |
Peg-shaped lateral | 2.7 | 1.4 | 5.1 | 1.8 | 0.9 | 75.8 | 21.5 | 0.423 |
Shoveling on central | 52.9 | 47.5 | 58.2 | 41.1 | 11.8 | 36.6 | 10.6 | 0.974 |
Shoveling on lateral | 55.0 | 49.6 | 60.3 | 42.9 | 12.1 | 34.7 | 10.3 | 0.855 |
Shoveling on canine | 49.8 | 44.5 | 55.2 | 37.5 | 12.4 | 40.2 | 10.0 | 0.278 |
Talon cusp on central | 13.3 | 10.1 | 17.4 | 10.0 | 3.3 | 67.7 | 19.0 | 0.651 |
Talon cusp on lateral | 19.9 | 16.0 | 24.6 | 15.4 | 4.5 | 62.2 | 17.8 | 0.936 |
Talon cusp on canine | 26.0 | 21.6 | 31.0 | 17.8 | 8.2 | 59.8 | 14.2 | 0.019 |
Carabelli cusp on U6 | 60.1 | 54.8 | 65.3 | 45.2 | 15.2 | 32.4 | 7.3 | 0.147 |
Carabelli cusp on U7 | 4.5 | 2.8 | 7.3 | 3.6 | 0.9 | 74.0 | 21.5 | 0.823 |
Fifth cusp on U6 | 1.2 | 0.5 | 3.1 | 1.2 | 0.0 | 76.4 | 22.4 | 0.280 |
Hypocone absence—U7 | 40.8 | 35.6 | 46.2 | 33.8 | 6.9 | 43.8 | 15.4 | 0.054 |
Tuberculum sextum on L6 | 2.7 | 1.4 | 5.1 | 1.8 | 0.9 | 75.8 | 21.5 | 0.423 |
Hypoconulid absence—L7 | 82.2 | 77.7 | 85.9 | 65.3 | 16.9 | 12.4 | 5.4 | 0.097 |
Protostylid | 3.3 | 1.9 | 5.9 | 2.4 | 0.9 | 75.2 | 21.5 | 0.691 |
Deflecting wrinkle on L6 | 24.8 | 20.4 | 29.7 | 19.0 | 5.7 | 58.6 | 16.6 | 0.838 |
Deflecting wrinkle on L7 | 3.0 | 1.6 | 5.5 | 2.4 | 0.6 | 75.2 | 21.8 | 0.856 |
Canine mesial ridge | 5.7 | 3.7 | 8.8 | 4.5 | 1.2 | 73.1 | 21.1 | 0.888 |
Distal trigonid crest on L6 | 3.6 | 2.1 | 6.2 | 2.7 | 0.9 | 74.9 | 21.5 | 0.823 |
Distal trigonid crest on L7 | 8.2 | 5.7 | 11.6 | 4.8 | 3.3 | 72.8 | 19.0 | 0.017 |
Canine distal accessory ridge | 36.3 | 31.3 | 41.6 | 26.9 | 9.4 | 50.8 | 13.0 | 0.252 |
Hypoconulid absence—L6 | 17.2 | 13.5 | 21.7 | 14.2 | 3.0 | 63.4 | 19.3 | 0.338 |
Sixth cusp on U6 | 0.3 | 0.1 | 1.7 | 0.3 | 0.0 | 77.3 | 22.4 | 0.591 |
Fifth cusp on U7 | 2.1 | 1.0 | 4.3 | 1.5 | 0.6 | 76.1 | 21.8 | 0.690 |
Accessory cusp on mesial marginal ridge—4 | 2.1 | 1.0 | 4.3 | 1.5 | 0.6 | 76.1 | 21.8 | 0.690 |
Accessory cusp on mesial marginal ridge—5 | 2.4 | 1.2 | 4.7 | 1.5 | 0.9 | 76.1 | 21.5 | 0.298 |
Accessory cusp on mesial marginal ridge—6 | 13.6 | 10.3 | 17.7 | 11.2 | 2.4 | 66.5 | 19.9 | 0.428 |
Accessory cusp on mesial marginal ridge—7 | 10.9 | 8.0 | 14.7 | 10.0 | 0.9 | 67.7 | 21.5 | 0.032 |
Accessory cusp on distal marginal ridge—4 | 1.8 | 0.8 | 3.9 | 1.2 | 0.6 | 76.4 | 21.8 | 0.515 |
Accessory cusp on distal marginal ridge—5 | 9.7 | 6.9 | 13.3 | 6.9 | 2.7 | 70.7 | 19.6 | 0.410 |
Accessory cusp on distal marginal ridge—6 | 4.2 | 2.5 | 7.0 | 3.6 | 0.6 | 74.0 | 21.8 | 0.459 |
Accessory cusp on distal marginal ridge—7 | 4.2 | 2.5 | 7.0 | 3.6 | 0.6 | 74.0 | 21.8 | 0.459 |
Accessory cusp on lingual—L4 | 23.6 | 19.3 | 28.4 | 17.8 | 5.7 | 59.8 | 16.6 | 0.627 |
Accessory cusp on lingual—L5 | 54.7 | 49.3 | 60.0 | 42.0 | 12.7 | 35.6 | 9.7 | 0.684 |
Mesial accessory ridge—4 | 19.0 | 15.2 | 23.6 | 13.6 | 5.4 | 64.0 | 16.9 | 0.188 |
Mesial accessory ridge—5 | 51.7 | 46.3 | 57.0 | 39.6 | 12.1 | 38.1 | 10.3 | 0.640 |
Mesial accessory ridge—6 | 0.3 | 0.1 | 1.7 | 0.3 | 0.0 | 77.3 | 22.4 | 0.591 |
Distal accessory ridge—4 | 66.5 | 61.2 | 71.3 | 52.6 | 13.9 | 25.1 | 8.5 | 0.374 |
Distal accessory ridge—5 | 73.1 | 68.1 | 77.6 | 55.9 | 17.2 | 21.8 | 5.1 | 0.389 |
Tuberculum intermedium on L6 | 6.0 | 3.9 | 9.1 | 5.1 | 0.9 | 72.5 | 21.5 | 0.415 |
Tuberculum intermedium on L7 | 1.2 | 0.5 | 3.1 | 0.9 | 0.3 | 76.7 | 22.1 | 0.898 |
Tuberculum sextum on L7 | 0.9 | 0.3 | 2.6 | 0.6 | 0.3 | 77.0 | 22.1 | 0.647 |
Accessory cusp on lingual—L7 | 1.5 | 0.6 | 3.5 | 1.2 | 0.3 | 76.4 | 22.1 | 0.899 |