1. Exposure to Road Traffic Noise and Behavioral Problems in 7-Year-Old Children: A Cohort Study.
- Author
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Hjortebjerg, Dorrit, Andersen, Anne Marie Nybo, Christensen, Jeppe Schultz, Ketzel, Matthias, Raaschou-Nielsen, Ole, Sunyer, Jordi, Julvez, Jordi, Forns, Joan, and Sorensen, Mette
- Subjects
AIR pollution ,AUTOMOBILES ,BEHAVIOR disorders in children ,CONFIDENCE intervals ,NOISE ,QUESTIONNAIRES ,RESEARCH funding ,MULTIPLE regression analysis ,DATA analysis software ,DESCRIPTIVE statistics ,ODDS ratio ,CHILDREN - Abstract
BACKGROUND: Exposure to traffic noise has been associated with adverse effects on neuro-psychological outcomes in children, but findings with regard to behavioral problems are inconsistent. OBJECTIVE: We investigated whether residential road traffic noise exposure is associated with behavioral problems in 7-year-old children. METHODS: We identified 46,940 children from the Danish National Birth Cohort with complete information on behavioral problems at 7 years of age and complete address history from conception to 7 years of age. Road traffic noise (L
den ) was modeled at all present and historical addresses. Behavioral problems were assessed by the parent-reported Strengths and Difficulties Questionnaire (SDQ). Associations between pregnancy and childhood exposure to noise and behavioral problems were analyzed by multinomial or logistic regression and adjusted for potential confounders. RESULTS: A 10-dB increase in average time-weighted road traffic noise exposure from birth to 7 years of age was associated with a 7% increase (95% CI: 1.00, 1.14) in abnormal versus normal total difficulties scores; 5% (95% CI: 1.00, 1.10) and 9% (95% CI: 1.03, 1.18) increases in borderline and abnormal hyperactivity/inattention subscale scores, respectively; and 5% (95% CI: 0.98, 1.14) and 6% (95% CI: 0.99, 1.12) increases in abnormal conduct problem and peer relationship problem subscale scores, respectively. Exposure to road traffic noise during pregnancy was not associated with child behavioral problems at 7 years of age. CONCLUSIONS: Residential road traffic noise in early childhood may be associated with behavioral problems, particularly hyperactivity/inattention symptoms. [ABSTRACT FROM AUTHOR]- Published
- 2016
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