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Jama network open: Chinese scholar: second -hand smoke exposure will increase children’s risk

Note that defect/multi -dysfunction (ADHD) is a common neurological disorder, which is usually diagnosed during childhood, and the prevalence of global school -age children is 5%to 7%. ADHD’s onset in childhood, the impact can continue to adulthood. Its main characteristic is that the attention defects and (or) motion impulsive are not commensurate with the level of development. ADHD not only damages the learning function, but also has other various aspects of physiological and mental health damage involving the full cycle of life.

Recently, a study published in Jama Network Open magazine showed that second -hand smoke from pregnancy to childhood exposure is closely related to the symptoms of ADHD in school -age children, especially in the early and postpartum stage.

In this cross -section research, researchers conducted investigations and analysis of 48612 children 6 to 18 years old from April 2012 to January 2013. Through the questionnaire issued by the school teacher to the parents or guardians, the second -hand smoke exposure and ADHD symptom data of each child’s second -hand smoke were collected. The data was analyzed from September 14th to December 2nd, 2020. ADHD clinical symptoms and subtypes are evaluated based on effective tools developed from the “Diagnosis and Statistics Manual of Mental Diseases and Statistics” (fourth edition). It is estimated that second -hand smoke exposure is related to ADHD symptoms and subtypes.

The results of the study showed that a total of 4,5562 participants completed the questionnaire and were included in this study. The girl accounted for 50.3%, the average age was 11.0 years, and 4.8%had ADHD symptoms. Compared with children who have not touched second-hand smoke, they have been in contact with from pregnancy to childhood (probability ratio [OR], 1.50; 95%CI, 1.36-1.66) or always contact second-hand smoke (OR, 2.88; 95%CI; 95%CI , 2.55-3.25) children suffer from ADHD symptoms and subtypes higher (ORS ranges from 1.46 [95%CI, 1.31-1.62] to 2.94 [95%CI, 2.09-4.13]). Children who have exposed to second -hand cigarettes before and early after childbirth have a higher probability of adhd symptoms.

In addition, researchers have found that compared with children who have not touched second-hand cigarettes, their father smokes 10 or more smokers every day to suffer from ADHD symptoms and subtypes. ] To 2.25 [95% Ci, 1.29-3.93]).

In summary, in this large horizontal section study, researchers found that second -hand smoke from pregnancy to childhood exposure is related to ADHD symptoms and subtypes of school -age children. When considering the exposure of second -hand cigarettes, this association is more obvious in prenatal and early postpartum. In addition, the child’s smoking child has a higher chance of adhd symptoms and subtypes.

Primitive source

Li-Zi Lin, PhD1; Shu-Li Xu, MM1; Qi-Zhen Wu, MM1; et al.Association of Prenatal, Early Postnatal, or Current Exposure to Secondhand Smoke With Attention-Deficit/Hyperactivity Disorder Symptoms in Children.JAMA Netw Open. 2021; 4 (5): E2110931. Doi: 10.1001/jamnetworkOpen.2021.10931

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