Table 2 Participant demographics
From: Prevalence of refractive errors in Tibetan adolescents
Plateau group | Plains group | |
|---|---|---|
Total | 3248 | 11,102 |
Gender | ||
Female | 1558 | 5274 |
Male | 1671 | 5740 |
Age (average ± SD, year) | 12.69 (±2.88) | 11.94 (±3.13) |
Eye examination | ||
Normal | 2322 | 4782 |
Abnormal | 926 | 6320 |