期刊
DEVELOPMENTAL PSYCHOBIOLOGY
卷 60, 期 6, 页码 722-729出版社
WILEY
DOI: 10.1002/dev.21627
关键词
attention deficits hyperactivity disorder; externalizing behavior problems; HPA axis activity; preschool age
资金
- Deutsche Forschungsgemeinschaft [Be2573/3-1, Be2573/3-2]
Previous research demonstrated hypoactivity of the HPA axis in children with attention-deficit/hyperactivity disorder (ADHD) or externalizing symptoms. We analyzed the predictive association between the long-term HPA axis activity and increasing symptoms of ADHD in the preschool period. The sample consisted of n=125 4-year-old children and their families (including n=64 children with elevated ADHD symptoms). ADHD symptoms were assessed by a structured clinical interview with the mother and by parent- and teacher-report questionnaires. The long-term HPA axis activity was assessed by the hair cortisol concentration (HCC) (over a 3-month period). After controlling for potential confounders, low HCC predicted an increase in ADHD symptoms between the age of 4 and 5 years. Exploration of gender effects revealed that cross-sectional and predictive associations were significant in boys but not in girls. Low HCC might thus be regarded as an early marker of a possibly gender-related developmental pathway to ADHD.
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