| Overall raters | Chinese raters | Black raters | |||
---|---|---|---|---|---|---|
Profession | n | mean age | n | mean age | n | mean age |
Orthodontists | 112 | 35.9 ± 5.5 | 56 | 36.8 ± 5.5 | 56 | 35 ± 5.5 |
G.Practitioners | 112 | 26.4 ± 5.2 | 56 | 25 ± 5.9 | 56 | 27.8 ± 3.8 |
Dental students | 112 | 22.1 ± 1.4 | 56 | 21.8 ± 1.1 | 56 | 22.4 ± 1.6 |
Art students | 113 | 22.6 ± 4 | 57 | 20.4 ± 3.3 | 56 | 24.9 ± 3.3 |
Laypersons | 112 | 26.1 ± 6 | 56 | 23.1 ± 4 | 56 | 20.2 ± 6.2 |
Total | 561 (100%) | - | 281 (50.1%) | - | 280 (49.9%) | - |
Gender | n | % | n | % | n | % |
Male | 279 | (49.7%) | 123 | (43.8%) | 156 | (55.7%) |
Female | 282 | (50.3%) | 158 | (56.2%) | 124 | (44.3%) |
Total | 561 | (100%) | 281 | (100%) | 280 | (100%) |
Age group | n | % | n | % | n | % |
18–30 | 425 | (75.8%) | 219 | (77.9%) | 206 | (73.6%) |
31–51 | 136 | (24.2%) | 62 | (22.1%) | 74 | (26.4%) |
Total | 561 | (100%) | 281 | (100%) | 280 | (100%) |