Table 3.
Distribution of myopia and high myopia in different educational levels
| Education phase | Grade | Count | SE, Mean (SD) (D) | Likely myopia (95% CI) | Myopia (95% CI) | High myopia (95% CI) |
|---|---|---|---|---|---|---|
| Elementary school | 1 | 104,727 | − 0.13 (0.97) | 5.82% (5.68%–5.96%) | 12.77% (12.57%–12.98%) | 0.18% (0.16%–0.21%) |
| 2 | 98,456 | − 0.39 (1.11) | 7.54% (7.38%–7.71%) | 21.34% (21.08%–21.59%) | 0.26% (0.23%–0.29%) | |
| 3 | 95,606 | − 0.72 (1.29) | 9.20% (9.02%–9.38%) | 32.89% (32.59%–33.19%) | 0.40% (0.36%–0.44%) | |
| 4 | 96,269 | − 1.10 (1.48) | 9.63% (9.45%–9.82%) | 44.64% (44.32%–44.95%) | 0.87% (0.81%–0.93%) | |
| 5 | 94,529 | − 1.52 (1.66) | 9.43% (9.24%–9.61%) | 56.65% (56.34%–56.97%) | 1.45% (1.38%–1.53%) | |
| 6 | 91,022 | − 1.91 (1.83) | 8.27% (8.09%–8.45%) | 65.03% (64.72%–65.34%) | 2.72% (2.61%–2.83%) | |
| Total | 580,609 | − 0.94 (1.54) | 8.27% (8.20%–8.34%) | 38.16% (38.03%–38.28%) | 0.95% (0.93%–0.98%) | |
| Middle school | 7 | 87,817 | − 2.40 (1.99) | 7.07% (6.90%–7.24%) | 74.30% (74.01%–74.59%) | 4.91% (4.77%–5.05%) |
| 8 | 86,165 | − 2.75 (2.11) | 5.85% (5.69%–6.00%) | 78.21% (77.93%–78.48%) | 7.09% (6.92%–7.26%) | |
| 9 | 77,068 | − 2.99 (2.20) | 4.77% (4.62%–4.92%) | 80.42% (80.14%–80.70%) | 8.97% (8.76%–9.17%) | |
| Total | 251,050 | − 2.70 (2.11) | 5.94% (5.85%–6.04%) | 77.52% (77.36%–77.68%) | 6.90% (6.80%–7.00%) | |
| High school | 10 | 61,714 | − 3.26 (2.30) | 4.32% (4.16%–4.49%) | 82.76% (82.47%–83.06%) | 11.39% (11.14%–11.64%) |
| 11 | 59,858 | − 3.46 (2.32) | 3.97% (3.82%–4.13%) | 84.48% (84.19%–84.77%) | 13.45% (13.17%–13.72%) | |
| 12 | 49,395 | − 3.51 (2.38) | 3.74% (3.58%–3.91%) | 84.98% (84.66%–85.29%) | 14.40% (14.09%–14.71%) | |
| Total | 170,967 | − 3.40 (2.33) | 4.03% (3.94%–4.13%) | 84.00% (83.83%–84.18%) | 12.98% (12.82%–13.14%) |
SE spherical equivalent; SD standard deviation; CI confidence interval