The result shows that three-year-olds' body mass index, BMI, increased during the pandemic.

Among girls, the percentage with obesity increased from 2.8 percent before the pandemic to 3.9 during the pandemic.

The percentage of boys with obesity increased from 2.4 percent to 2.6.

Statistically significant increases in BMI were also seen among four-year-olds, and obesity increased among both boys and girls.

However, the group of five-year-olds did not show any BMI changes.

The clearest increase was seen in children in socioeconomically disadvantaged areas.

There, the percentage of overweight three- and four-year-olds increased from 9.5 to 12.4 percent, and the percentage with obesity from 2.4 to 4.4 percent.

- It is frightening that already at such young ages there are class differences linked to the risk of overweight and obesity, says Anton Holmgren.

Hear chief physician Anders Forslund at the University Hospital about what you can think about as a parent:

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In the clip: Senior doctor Anders Forslund on what is important to think about as a parent.

Photo: Christoffer Urborn/SVT