an increasing trendp < 0.001
Furthermore, it was 32.7% (1486/4542) for children aged 0–5 years, 46.6% (2249/4830) for those aged 6–10 years, and 73.3% (2988/4079) for those aged 11–18 years, showing an increasing trend with children’ age groups ( p < 0.001).