|
| Number (N = 963) | Percentage |
| Gender |
|
|
| Boys | 416 | 46.3 |
| Girls | 517 | 53.7 |
| Age Groups (years) |
|
|
| 8 - 12 | 355 | 36.9 |
| 12 - 15 | 533 | 55.3 |
| >15 | 75 | 7.8 |
| Year in School |
|
|
| 7th Grade | 378 | 39.3 |
| 8th Grade | 585 | 60.9 |
| Family History of Vision Problems |
|
|
| Present | 271 | 28.1 |
| Absent | 692 | 71.9 |
| Previous Problems in Color Vision |
|
|
| Present | 69 | 7.2 |
| Absent | 864 | 92.8 |