What Parents Know About Students’ Vision Preserving
Table 7: Answers to question: "What is the child's night sleep duration?"
Answers: | Number of respondents (%) |
5 h | 2 |
6 h | 5 |
7 h | 16 |
8 h | 34 |
9 h | 33 |
10 h and more | 10 |
Answers: | Number of respondents (%) |
5 h | 2 |
6 h | 5 |
7 h | 16 |
8 h | 34 |
9 h | 33 |
10 h and more | 10 |