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Prevalence of astigmatism by different types (%)
| School type | Hyperopic astigmatism | Myopic astigmatism | Mixed astigmatism | ||
|---|---|---|---|---|---|
| ≥ +0.50 DC | ≥ +1.00 DC | ≤ -0.50 DC | ≤ -1.00 DC | ||
| Academically challenging | 13.51(10.37-16.63) | 4.79(2.84-6.76) | 8.71(6.12-11.28) | 4.79(2.84-6.76) | 1.96(0.69-3.23) |
| Regular | 6.91(4.86-8.94) | 1.69(0.65-2.73) | 2.76(1.55-4.25) | 1.69(0.65-2.73) | 1.01(0.2-1.8) |
| p | < 0.001 | 0.004 | < 0.001 | 0.004 | 0.198 |
Data are given as the prevalence of refractive errors (95% confidence interval).
