Number and refractive error of children and parents
| Refractive error (dioptres)† | |||||
|---|---|---|---|---|---|
| Children's age (years) | Number | Children | Parents | p Value* | |
| 6.0–7.9 | 92 | 0.22 (−1.20 to 1.06) | −1.77 (−2.98 to −0.47) | <0.001 | |
| 8.0–9.9 | 107 | −0.56 (−1.94 to 0.88) | −2.00 (−3.34 to −0.69) | <0.001 | |
| 10.0–11.9 | 30 | −2.56 (−3.88 to −1.44) | −2.00 (−3.78 to −0.94) | 0.58 | |
| 12.0–13.9 | 103 | −2.69 (−4.06 to −1.31) | −1.89 (−3.22 to −0.50) | <0.01 | |
| 14.0–15.9 | 23 | −2.94 (−4.00 to −1.25) | −0.59 (−1.88 to 0.00) | <0.001 | |
| 16.0–17.9 | 40 | −2.59 (−5.19 to −1.47) | −1.05 (−2.58 to −0.23) | <0.001 | |
*p Value: using rank-sum test.
†Children's refractive error was defined as the average spherical equivalent of both eyes; parental refractive error was defined as the average spherical equivalent of father and mother; presented as median (25th and 75th percentile).