Approximately 85 percent of all Swedish four-year-olds in 2018, 2020 and 2022 were included in the study, which in total comprises over 300,000 individuals. (IMAGE)

Uppsala University

Approximately 85 percent of all Swedish four-year-olds in 2018, 2020 and 2022 were included in the study, which in total comprises over 300,000 individuals.

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Approximately 85 percent of all Swedish four-year-olds in 2018, 2020 and 2022 were included in the study, which in total comprises over 300,000 individuals.

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Region Sörmland

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