Age | Mean refractive error in 2020 compared with the most myopic outcome in the previous 5 years | Prevalence of myopia in 2020 compared with previous 5-year high, P value |
6 | −0.32 D | +15.8%, ≤0.01 |
7 | −0.28 D | +21%, ≤0.01 |
8 | −0.29 D | +9.5%, ≤0.01 |
9 | −0.12 D | +1.8%, 0.09 |
10 | −0.11 D | −2.3%, 0.03 |
11 | −0.06 D | −3%, 0.004 |
12 | −0.05 D | −8.4%, ≤0.01 |
13 | −0.05 D | −3.4%, ≤0.01 |
Results grouped by age.