Table 2 Relationship between myopic alertion for non-myopic students and myopia associated factors
Non-myopic students with no-alertion (%/mean ± SD) | non-myopic students with alertion (%/mean ± SD) | P | |
|---|---|---|---|
Father is myopia? | 31.5 (404/1284) | 35.9 (260/725) | 0.048 |
Mother is myopia? | 34.7 (446/1284) | 38.9 (282/725) | 0.062 |
Have brothers or sisters? | 42.9 (551/1284) | 36.6 (265/725) | 0.005 |
After school homework on working days? (From 17:00–19:00) | 34.1 (138/405) | 46.9 (98/209) | 0.002 |
After school homework on weekends? (From 20:00–22:00) | 1.0 (11/1098) | 2.5 (15/594) | 0.015 |
Sleep duration on working days | 9.68 ± 0.75 | 9.60 ± 0.82 | 0.004 |
Outdoor activities on weekends? | 84.2 (1081/1284) | 78.3 (568/725) | 0.001 |