Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study
Objectives To observe the weight change in Chinese youth during a 4-month COVID-19 lockdown, and the association between weight change and mental health, physical activity and sedentary time changes, and dietary habits.Design A retrospective observational study.Settings Two universities located in Z...
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doaj-aedf2b0da40347e090f635f56d6c72692021-08-07T16:33:27ZengBMJ Publishing GroupBMJ Open2044-60552021-07-0111710.1136/bmjopen-2021-052451Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational studyJie Liu0Hui Li1Wenliang Zhang2Suixin Liu3Yaoshan Dun4Jeffrey W. Ripley-Gonzalez5Nanjiang Zhou6Baiyang You7Qiuxia Li8Randal J. Thomas9Thomas P. Olson10Yuchen Dong11Department of Internal Medicine, Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDivision of Cardiac Rehabilitation, Department of Physical Medicine and Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, ChinaDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USADepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USAMedical College, Jinhua Polytechnic, Jinhua, Zhejiang, ChinaObjectives To observe the weight change in Chinese youth during a 4-month COVID-19 lockdown, and the association between weight change and mental health, physical activity and sedentary time changes, and dietary habits.Design A retrospective observational study.Settings Two universities located in Zhejiang and Hunan provinces, China.Participants This study enrolled 12 889 college students whose body weight was measured before the lockdown (1 December 2019–20 January 2020) at the two universities, and reported their weight measured at home or community after the end of the lockdown (1–23 May 2020) via an online follow-up questionnaire.Primary and secondary outcome measures The primary outcome was the weight change in Chinese youth during a 4-month lockdown resulting from the COVID-19 pandemic. The secondary outcomes were the relationships of weight change to COVID-19-related stress, depression, anxiety, physical activity and sedentary time changes, and dietary habits.Results Participants’ ages ranged from 17 to 27 years (M=19, SD=1) with 80.2% identified as female. The average absolute and relative changes in body weight were 2.6 (95% CI 2.0 to 3.2)) kg and 4.2% (95% CI 4.0% to 4.3%) for men, and 2.1 (1.9 to 2.4) kg and 4.2% (95% CI 3.9% to 4.4%) for women. An increase in overweight and obese individuals according to Asian cut-off points as a demographic percentage by 4.5% and 2.7% and 4.8% and 3.4% in men and women, respectively (P<0.001), was observed. Weight gain was significantly associated with increased sedentary time and an increase in COVID-19-related stress and depression score.Conclusion The present study’s results suggest that the risk of weight gain in Chinese youth during the lockdown increased and that strategies to decrease sedentary time and improve mental health may be warranted to mitigate weight gain during and after the COVID-19 pandemic.https://bmjopen.bmj.com/content/11/7/e052451.full |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jie Liu Hui Li Wenliang Zhang Suixin Liu Yaoshan Dun Jeffrey W. Ripley-Gonzalez Nanjiang Zhou Baiyang You Qiuxia Li Randal J. Thomas Thomas P. Olson Yuchen Dong |
spellingShingle |
Jie Liu Hui Li Wenliang Zhang Suixin Liu Yaoshan Dun Jeffrey W. Ripley-Gonzalez Nanjiang Zhou Baiyang You Qiuxia Li Randal J. Thomas Thomas P. Olson Yuchen Dong Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study BMJ Open |
author_facet |
Jie Liu Hui Li Wenliang Zhang Suixin Liu Yaoshan Dun Jeffrey W. Ripley-Gonzalez Nanjiang Zhou Baiyang You Qiuxia Li Randal J. Thomas Thomas P. Olson Yuchen Dong |
author_sort |
Jie Liu |
title |
Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study |
title_short |
Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study |
title_full |
Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study |
title_fullStr |
Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study |
title_full_unstemmed |
Weight gain in Chinese youth during a 4-month COVID-19 lockdown: a retrospective observational study |
title_sort |
weight gain in chinese youth during a 4-month covid-19 lockdown: a retrospective observational study |
publisher |
BMJ Publishing Group |
series |
BMJ Open |
issn |
2044-6055 |
publishDate |
2021-07-01 |
description |
Objectives To observe the weight change in Chinese youth during a 4-month COVID-19 lockdown, and the association between weight change and mental health, physical activity and sedentary time changes, and dietary habits.Design A retrospective observational study.Settings Two universities located in Zhejiang and Hunan provinces, China.Participants This study enrolled 12 889 college students whose body weight was measured before the lockdown (1 December 2019–20 January 2020) at the two universities, and reported their weight measured at home or community after the end of the lockdown (1–23 May 2020) via an online follow-up questionnaire.Primary and secondary outcome measures The primary outcome was the weight change in Chinese youth during a 4-month lockdown resulting from the COVID-19 pandemic. The secondary outcomes were the relationships of weight change to COVID-19-related stress, depression, anxiety, physical activity and sedentary time changes, and dietary habits.Results Participants’ ages ranged from 17 to 27 years (M=19, SD=1) with 80.2% identified as female. The average absolute and relative changes in body weight were 2.6 (95% CI 2.0 to 3.2)) kg and 4.2% (95% CI 4.0% to 4.3%) for men, and 2.1 (1.9 to 2.4) kg and 4.2% (95% CI 3.9% to 4.4%) for women. An increase in overweight and obese individuals according to Asian cut-off points as a demographic percentage by 4.5% and 2.7% and 4.8% and 3.4% in men and women, respectively (P<0.001), was observed. Weight gain was significantly associated with increased sedentary time and an increase in COVID-19-related stress and depression score.Conclusion The present study’s results suggest that the risk of weight gain in Chinese youth during the lockdown increased and that strategies to decrease sedentary time and improve mental health may be warranted to mitigate weight gain during and after the COVID-19 pandemic. |
url |
https://bmjopen.bmj.com/content/11/7/e052451.full |
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