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Child psychiatric disorder and relative age within school year: cross sectional survey of large population sample



Child psychiatric disorder and relative age within school year: cross sectional survey of large population sample



Bmj 327(7413): 472-472



Objective: To test the hypothesis that younger children in a school year are at greater risk of emotional and behavioural problems. Design: Cross sectional survey. Setting: Community sample from England, Scotland, and Wales. Participants: 10 438 British 5-15 year olds. Main outcome measures: Total symptom scores on psychopathology questionnaires completed by parents, teachers, and 11-15 year olds; psychiatric diagnoses based on a clinical review of detailed interview data. Results: Younger children in a school year were significantly more likely to have higher symptom scores and psychiatric disorder. The adjusted regression coefficients for relative age were 0.51 (95% confidence interval 0.36 to 0.65, P<0.0001) according to teacher report and 0.35 (0.23 to 0.47, P=0.0001) for parental report. The adjusted odds ratio for psychiatric diagnoses for decreasing relative age was 1.14 (1.03 to 1.25, P=0.009). The effect was evident across different measures, raters, and age bands. Cross national comparisons supported a "relative age" explanation based on the disadvantages of immaturity rather than a "season of birth" explanation based on seasonal variation in biological risk. Conclusions: The younger children in a school year are at slightly greater psychiatric risk than older children. Increased awareness by teachers of the relative age of their pupils and a more flexible approach to children's progression through school might reduce the number of children with impairing psychiatric disorders in the general population.

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Accession: 010314723

Download citation: RISBibTeXText

PMID: 12946967

DOI: 10.1136/bmj.327.7413.472



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