4/6/2011

Data on 2,901 youths ages 8 to 15 found that levels of cotinine -- a product of nicotine metabolism -- in their blood had a strong link to attention-deficit/hyperactivity disorder symptoms and a weak correlation with conduct disorder, major depressive disorder and generalized anxiety disorder. Cotinine levels in boys were more strongly linked to psychiatric symptoms compared with girls, the study in the Archives of Pediatrics & Adolescent Medicine found.

Related Summaries