Sang-Kyu Kim, Min-Woo Jo, Seon-Ha Kim
Health-related quality of life by allergy symptoms in elementary school students
Health and quality of life outcomes
schools japan closed nationwide march may 2020 coronavirus disease 2019 covid19 pandemic many suspect school closure affected childrens mental physical health investigated changes schoolage childrens physiques determine effects covid19 lockdown restrictions health data extracted database school physical examinations osaka elementary junior high schools 4 consecutive years 2018 2021 following characteristics analyzed short stature tall stature underweight mild obesity middle grade obesity severe obesity paired student ttest used compare school examination data prepandemic period 20182019 pandemic lockdown 20192020 postlockdown period 20202021 obesity rates elementary school students aged 612 years particularly boys significantly higher lockdown 2019 pandemic tall stature rate continued rise rates short stature underweight decreased sexes 2020 junior high school students aged 1215 years rates obesity underweight tended decrease 2020 however rates rebounded rose 2021 lockdown lifted covid19 pandemic lockdown elementary school students gained weight junior high school students lost weight lockdown implemented covid19 pandemic unfavorable effect weight gain particularly young schoolage children