Exposure to second-hand smoke related to probabilities of ADHD symptoms

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(HealthDay): Secondhand smoke exposure (SHS) from pregnancy to childhood is associated with an increased likelihood of symptoms and subtypes of attention deficit / hyperactivity disorder (ADHD) , according to a study published online May 20 a JAMA network open.

Li-Zi Lin, Ph.D., of Sun Yat-sen University in Guangzhou, China, and colleagues examined the correlations of prenatal, early, or current postnatal exposure to SHS with ADHD symptoms and subtypes in a cross-sectional study with 48,612 children. from 6 to 18 years.

The researchers found that children who were always exposed or always exposed to SHS from pregnancy to childhood were more likely to have symptoms and subtypes of ADHD compared to their non-exposed counterparts (probability ratios). they ranged from 1.46 to 2.94; 1.50 for always exposed and 2.88 for always exposed). The chances of having symptoms of ADHD increased in children with SHS exposure when exposed to , early postnatal period or current period (probability ratios, 2.28, 1.47 and 1.20, respectively) compared to their unexposed counterparts. The chances of having symptoms and subtypes of ADHD increased in children whose parents smoked ten or more cigarettes a day both on weekdays and weekends compared to their unexposed counterparts (the proportions of probabilities ranged from 1.48 and 2.25).

“Our findings highlight the importance of strengthening public health efforts to reduce SHS exposure, which can reduce the health and economic burdens of people with ADHD,” the authors write.


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Citation: Exposure to second-hand smoke related to ADHD symptom probabilities (2021, May 21) Retrieved May 22, 2021 at https://medicalxpress.com/news/2021-05-secondhand-exposure-linked-odds -adhd.html

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