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Abstract
Purpose To study the effect of passive smoking on 52:70 months children{u2019}s motor and cognitive development. Subjects: One hundred apparent healthy volunteers{u2019} children of both sexes with age range from 52 to70 months were enrolled in the current study were classified into two groups group I (passive smoker children) and group II (non passive smoker children).Each group consisted of 50 children. Methods: Motor development was evaluated by Peabody developmental motor scale -2 and cognitive development was evaluated by Wechsler Preschool and Primary Scale of Intelligence (WPPSI) for both groups of children of smokers` and non smokers` parents. Results: There was a statistical significant difference of Wechsler Preschool And Primary Scale Of Intelligence and Peabody developmental motor scale -2 was recorded except object manipulation and stationary for group I (children of smokers` parents).Conclusion: Passive smoking has effects on motor and cognitive development in preschool passive smoking children