BMI in children before, during, and after the COVID-19 pandemic

JAMA Network Open

2025-07-09

(Press-News.org) About The Study: This cross-sectional study including 426,000 children in Denmark found that body mass index (BMI) outcomes of COVID-19 pandemic–related control policies and restrictions were not exclusively observed among children with obesity, which suggests that pandemic-related mitigation policies targeting children and adolescents in all BMI categories are warranted. The findings of this study highlight differences among children of varying ages and BMI classes.

Corresponding Author: To contact the corresponding author, Frederik Kirkemann Jensen, MPH, email kirkemannjensen@outlook.com.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamanetworkopen.2025.19528)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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About JAMA Network Open: JAMA Network Open is an online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.

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