title: Hyperkinesis and maternal smoking.
abstract: Mothers of methylphenidate-sensitive hyperkinetic children reported smoking two to three times as many cigarettes as the mothers of dyslexic and normal controls; the reported cigarette consumptions of the fathers showed no significant differences. These findings are consistent with the hypothesis that smoking during pregnancy is an important cause of the hyperkinetic syndrome.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000188:drug therapy / Q000209:etiology*; D008297:Male; D008774:Methylphenidate / Q000627:therapeutic use; D011247:Pregnancy; D011248:Pregnancy Complications; D012907:Smoking / Q000150:complications*
chemical_list: D008774:Methylphenidate