Table 5 Percentage of subjects according to ethnicity requiring upper and lower anterior correction
Correction | Upper anterior | Lower anterior | ||||
|---|---|---|---|---|---|---|
(mm) | Malay (%) | Chinese (%) | Indian (%) | Malay (%) | Chinese (%) | Indian (%) |
< -2 | 15.4 | 3.7 | 9.1 | 1.9 | 5.6 | 4.5 |
-2 to -1.5 | 11.5 | 3.7 | 15.9 | 1.9 | 14.8 | 6.8 |
-1.5 to -1 | 13.5 | 7.4 | 6.8 | 0 | 11.1 | 6.8 |
-1 to -0.5 | 11.5 | 14.8 | 11.4 | 9.6 | 13 | 11.4 |
-0.5 to 0 | 15.4 | 18.5 | 13.6 | 19.2 | 7.4 | 13.6 |
0 to 0.5 | 15.4 | 7.4 | 11.4 | 17.3 | 24.1 | 18.2 |
0.5 to 1 | 9.6 | 9.3 | 9.1 | 17.3 | 13 | 9.1 |
1 to 1.5 | 3.8 | 11.1 | 9.1 | 17.3 | 7.4 | 18.2 |
1.5 to 2 | 0 | 3.7 | 2.3 | 3.8 | 0 | 2.3 |
> 2 | 3.8 | 20.4 | 11.4 | 11.5 | 3.7 | 9.1 |