Several studies in adults demonstrated a positive relationship between the number of cigarettes smoked and the urinary @entity4874 . The aim of this work was to analyze the passive and active smoking exposure of 333 sixteen-year-old students, demonstrated by their urinary @entity4874 , in comparison with the smoking habits of all the cohabitants. This last information was obtained from a questionnaire and urinary @entity4874 in mothers. The second purpose of this work was to observe whether the smoking habits of parents can promote the voluntary active exposure to @entity286 smoke in @entity1 . The considered students represent a particular group of @entity1 (16 years old) having a life-style still strictly bound to the smoking habit of parents. In fact, the nonactive smokers show urinary @entity4874 levels described by the following means: 28.81, 39.35, 39.62, and 57.67 ng/mL. This finding demonstrates a trend of exposure from no exposure to a maximum level of passive exposure. Similar results can be observed by considering the urinary @entity4874 of mothers. Finally, the active smoking habit potentially acquired by the adolescents seems to be induced also by emulation of the smoking habits of fathers. This possibility is demonstrated by a light positive and statistically significative correlation with the number of cigarettes actively smoked and, consequently, with urinary @entity4874 .

XXXX smoke habits in a group of adolescents: responsibility of the cohabitants in the active and passive exposure.

@entity1 :: ('9606', 'Species') :: ['people', 'children'] @entity286 :: ('4097', 'Species') :: ['tobacco'] @entity4874 :: ('MESH:D003367', 'Chemical') :: ['cotinine']
@entity286 :: (4097,Species) :: ['Tobacco']
