Journal of the American Academy of Child and Adolescent Psychiatry · 2004
Etiologies of associations between childhood sleep and behavioral problems in a large twin sample.
СтатьяПоддержка исследования: вне правительства СШАTwin StudyНазвание и аннотация: Перевод пока не подготовлен
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Gregory Alice M, Eley Thalia C, O'Connor Thomas G, Plomin Robert
Аннотация
OBJECTIVE: To examine the etiologies of covariation of childhood sleep problems and other behavioral/emotional problems in young children.
METHOD: The parents of more than 6,000 twin pairs provided information on their twins' anxiety, conduct, and hyperactivity at ages 3, 4, and 7 by completing the Strengths and Difficulties Questionnaire. Information on sleep problems was obtained at age 3/4.
RESULTS: Phenotypic correlations in preschool years between sleep problems and anxiety, conduct, and hyperactivity ranged from 0.17 to 0.22. These correlations were largely due to shared environmental factors (0.72-0.96) and less to heredity (0.05-0.26) and nonshared environment (0.00-0.06). Sleep problems at age 3/4 years predicted at age 7 years anxiety (beta =.12, p <.001), conduct problems (beta =.09, p <.001), and hyperactivity (beta =.07, p <.001), after accounting for stability of these problems. These predictive associations were also mainly mediated by shared environment (0.16-0.91), although genetic (0.02-0.84) and nonshared environmental (-0.03-0.09) factors were also influential.
CONCLUSIONS: The modest associations between early sleep problems and later behavioral/emotional problems are largely accounted for by common psychosocial risk factors. Further research on which specific risks may mediate these connections is needed.
METHOD: The parents of more than 6,000 twin pairs provided information on their twins' anxiety, conduct, and hyperactivity at ages 3, 4, and 7 by completing the Strengths and Difficulties Questionnaire. Information on sleep problems was obtained at age 3/4.
RESULTS: Phenotypic correlations in preschool years between sleep problems and anxiety, conduct, and hyperactivity ranged from 0.17 to 0.22. These correlations were largely due to shared environmental factors (0.72-0.96) and less to heredity (0.05-0.26) and nonshared environment (0.00-0.06). Sleep problems at age 3/4 years predicted at age 7 years anxiety (beta =.12, p <.001), conduct problems (beta =.09, p <.001), and hyperactivity (beta =.07, p <.001), after accounting for stability of these problems. These predictive associations were also mainly mediated by shared environment (0.16-0.91), although genetic (0.02-0.84) and nonshared environmental (-0.03-0.09) factors were also influential.
CONCLUSIONS: The modest associations between early sleep problems and later behavioral/emotional problems are largely accounted for by common psychosocial risk factors. Further research on which specific risks may mediate these connections is needed.