Rate of BMI increase in children nearly doubled during pandemic, study finds

(CNN)The rate of body mass index change in children nearly doubled from March to November 2020 compared to the rate of BMI change before the Covid-19 pandemic, according to a study published Thursday in the US Centers for Disease Control and Prevention's report on morbidity and mortality.

The CDC team used a medical record database to compare BMI changes in 432,302 US children between the ages of 2 and 19 before and during the pandemic. BMI is a measure that uses height and weight data to track changes in weight relative to height.
All of the children in the study experienced significant increases in their rate of BMI change during the pandemic, except for children who were underweight, the report found.