FRIDAY, May 21, 2021 (HealthDay News) – Secondhand smoke exposure (SHS) from pregnancy to childhood is associated with an increased likelihood of having symptoms and subtypes of deficit disorder of Attention / Hyperactivity Disorder (ADHD), according to a study published online May 20 in 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 ADHD symptoms were increased in children with SHS exposure when exposed in the prenatal period, the early postnatal period, or the current period (proportions, 2.28, 1.47, and 1.20, respectively). compared to its 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.
Summary / Full text