Research Article
Types and Presentation of Refractive Error among Individuals Aged 0–30 Years: Hospital-Based Cross-Sectional Study, Yemen
Table 1
Age and sex distribution of different types of refractive errors in a Yemeni population 0–30 years (N = 1,500)
| Subgroup | Sample | Myopia (N = 500) | Hyperopia (N = 800) | Astigmatism (N = 200) | N | % | N | % | N | % |
| Age group | 0–6 | 125 | 35 | 28.0 | 90 | 72.0 | 0 | 0 | 7–12 | 220 | 65 | 29.5 | 120 | 54.6 | 35 | 15.9 | 13–18 | 413 | 90 | 21.8 | 280 | 67.8 | 43 | 10.4 | 19–24 | 372 | 135 | 36.3 | 170 | 45.7 | 67 | 18.0 | 25–30 | 370 | 175 | 47.3 | 140 | 37.8 | 55 | 14.9 |
| Sex | Male | 700 | 300 | 42.9 | 300 | 42.9 | 100 | 14.3 | Female | 800 | 200 | 25.0 | 500 | 62.5 | 100 | 12.5 |
| Total | 1500 | 500 | 33.3 | 800 | 53.3 | 200 | 13.4 |
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