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What is already known on this topic
Preschool-onset depression is defined by age-adjusted subthreshold criteria for major depressive disorder (MDD) in children aged 3–6 years.1 Preschool-onset depression has shown preliminary evidence of validity as a psychiatric disorder,2 but the long-term outcomes of preschool-onset depression are still unclear. Identifying the earliest manifestations of depression will help target intervention efforts.3
Methods of the study
This is a prospective, observational study. Children (n=246) aged 3–6 years were recruited from primary care and day care sites in St. Louis. Children with depressive symptoms were oversampled using the Preschool Feelings Checklist, a brief screening measure—children whose caregivers endorsed two or more depression symptoms were recruited for this study; children with symptoms …
Competing interests None.
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