Table 1 Demographic data of the participants
| Parameters |
20-Item Pilot (N = 105) |
19-Item Final (N = 304) | ||
|---|---|---|---|---|
| n | % | n | % | |
| Age (year) | ||||
| Mean (SD) | 26.5 (5.2) | 26.2 (5.5) | ||
| Range | 18 to 38 | 18 to 39 | ||
| Gender | ||||
| Male | 32 | 31 | 71 | 23 |
| Female | 73 | 69 | 233 | 77 |
| Race | ||||
| Malay | 88 | 83.8 | 277 | 91.1 |
| Chinese | 12 | 11.4 | 18 | 6.0 |
| Indian | 5 | 4.8 | 8 | 2.6 |
| Others | – | – | 1 | 0.3 |
| Work status | ||||
| Government-employed | 17 | 16.2 | 76 | 24.9 |
| Private-employed | 13 | 12.4 | 80 | 26.3 |
| Student | 58 | 55.2 | 102 | 33.5 |
| Self-employed | 13 | 12.4 | 19 | 6.2 |
| Unemployed | 4 | 3.8 | 27 | 9.1 |
| Correction type | ||||
| Spectacle | 71 | 67.6 | 198 | 65.1 |
| Contact lens | 10 | 9.5 | 33 | 10.9 |
| Combination | 24 | 22.9 | 73 | 24.0 |
| Correction history (months) | ||||
| Age of current correction, mean (SD) | 6.3 (3.4) | 7.7 (2.5) | ||
| Wearing experience, mean (SD) | 158.2 (36) | 142.7 (41.2) | ||