Table 1 Characteristics of non-myopic students from Jiangsu Province
Age | Numbers of non-myopic students | Prevalence of myopia, % | SE, D | Height, cm | BMI, kg/m2 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Boys | Boys | Boys | Girls | Boys | Girls | Boys | Girls | Boys | Girls | |
6 | 263 | 232 | 9.3 | 4.9 | 0.60 ± 0.80 | 0.90 ± 0.90 | 122.0 ± 6.1 | 119.5 ± 5.7 | 17.4 ± 3.0 | 16.3 ± 2.1 |
6.5 | 127 | 123 | 15.3 | 8.2 | 0.70 ± 0.70 | 0.70 ± 0.70 | 124.1 ± 6.9 | 123.7 ± 7.4 | 17.4 ± 2.8 | 16.6 ± 2.0 |
7 | 286 | 206 | 17.1 | 15.9 | 0.70 ± 0.80 | 0.50 ± 0.60 | 126.8 ± 5.6 | 124.9 ± 5.1 | 17.4 ± 2.7 | 16.8 ± 2.7 |
7.5 | 259 | 268 | 15.4 | 16.5 | 0.70 ± 0.70 | 0.80 ± 1.00 | 125.6 ± 6.4 | 124.7 ± 7.2 | 17.4 ± 2.9 | 16.6 ± 2.4 |
8 | 227 | 218 | 29.7 | 26.6 | 0.50 ± 0.90 | 0.50 ± 0.80 | 133.2 ± 6.2 | 132.4 ± 6.5 | 17.9 ± 3.2 | 17.0 ± 2.8 |
8.5 | 232 | 192 | 22.1 | 25.6 | 0.50 ± 0.60 | 0.60 ± 1.00 | 132.0 ± 6.4 | 129.2 ± 6.2 | 18.2 ± 3.3 | 17.3 ± 2.7 |
9 | 98 | 86 | 44.6 | 49.4 | 0.50 ± 0.70 | 0.50 ± 0.80 | 138.0 ± 6.8 | 138.0 ± 6.3 | 18.9 ± 3.5 | 17.9 ± 3.6 |
9.5 | 196 | 174 | 35.9 | 38.5 | 0.50 ± 0.70 | 0.50 ± 0.80 | 136.5 ± 6.6 | 135.5 ± 6.8 | 18.5 ± 3.5 | 17.5 ± 2.9 |
10 | 87 | 88 | 60.8 | 53.2 | 0.30 ± 0.50 | 0.40 ± 0.70 | 143.5 ± 6.7 | 143.8 ± 7.4 | 19.9 ± 4.3 | 18.6 ± 3.5 |
10.5 | 105 | 71 | 52.1 | 61.4 | 0.40 ± 0.60 | 0.40 ± 0.70 | 142.9 ± 7.9 | 143.1 ± 6.8 | 19.4 ± 3.6 | 18.2 ± 3.4 |
11 | 60 | 24 | 68.8 | 82.1 | 0.40 ± 0.70 | 0.30 ± 0.60 | 148.8 ± 8.2 | 151.5 ± 8.5 | 20.8 ± 5.0 | 19.6 ± 4.3 |
11.5 | 65 | 52 | 67.5 | 74.1 | 0.40 ± 0.80 | 0.50 ± 0.90 | 149.9 ± 9.5 | 148.8 ± 6.5 | 21.5 ± 4.4 | 18.9 ± 3.1 |
12 | 43 | 35 | 74.7 | 78.0 | 0.30 ± 0.50 | 0.30 ± 0.80 | 153.6 ± 8.1 | 153.6 ± 6.3 | 19.8 ± 3.8 | 19.8 ± 3.3 |
12.5 | 48 | 35 | 73.8 | 78.7 | 0.20 ± 1.50 | 0.20 ± 0.50 | 156.0 ± 9.2 | 154.6 ± 7.2 | 20.3 ± 3.4 | 19.7 ± 3.8 |
Total | 2096 | 1804 | 38.0 | 39.5 | 0.50 ± 0.70 | 0.60 ± 0.80 | 132.7 ± 11.2 | 130.9 ± 11.3 | 18.3 ± 3.5 | 17.2 ± 2.9 |