Table 5.
Relationship between the time spent attending one sports club and/or cram school session and the rate of wearing glasses.
| Sports Club /Cram School |
0 h | 1 h | 12 h | 23 h | ≥3 h | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | % | N | % | N | % | N | % | N | % | |
| 0 h | 466 | 17.6 | 66 | 15.2 | 235 | 15.3 | 181 | 40.9 *** | 294 | 52.0 *** |
| 1 h | 64 | 4.7 ** | 33 | 15.2 | 50 | 24.0 | 23 | 30.4 | 17 | 52.9 |
| 12 h | 507 | 12.4 * | 157 | 10.8 | 560 | 13.8 | 184 | 24.5 && | 108 | 35.2 ## |
| 23 h | 129 | 13.2 | 24 | 20.8 | 102 | 13.7 | 55 | 21.8 & | 31 | 45.2 |
| ≥3 h | 52 | 9.60 | 12 | 25.0 | 50 | 14.0 | 30 | 30.0 | 25 | 28.0 # |
* p < 0.05 vs. SC 0 h/CS 0 h, ** p < 0.01 vs. SC 0 h/CS 0 h, *** p < 0.001 vs. SC 0 h/CS 0 h, & p < 0.05 vs. SC 0 h/CS 2–3 h, && p < 0.01 vs. SC 0 h/CS 2–3 h, # p < 0.05 vs. SC 0 h/CS SC 0 h/CS 35 h, ## p < 0.01 vs. SC 0 h/CS ≥ 3 h. Fisher’s exact test was used for all statistics.