These results suggest that fetal alcohol exposure should be considered a possible factor in the pathogenesis of childhood psychiatric disorders. These data provide clinically relevant information about the mental health problems that children with fetal alcohol exposure are likely to face.

Background This study examined whether thirdhand smoke (THS) persists in smokers’ homes after they move out and nonsmokers move in, and whether new nonsmoking residents are exposed to THS in these homes. Methods Homes of 100 smokers and 50 nonsmokers were visited before the residents moved out. Dust, surfaces, and air and participants’ fingers were measured for nicotine and children’s urine samples were analyzed for cotinine. The new residents who moved into these homes were recruited if they were nonsmokers. Dust, surfaces, and air, and new residents’ fingers were examined for nicotine in 25 former smoker and 16 former nonsmoker homes. A urine sample was collected from the youngest resident. Results Smoker homes’ dust, surface, and air nicotine decreased after the change of occupancy (p<.001); yet dust and surfaces showed higher contamination levels in former smoker homes than former nonsmoker homes (p<.05). Nonsmoking participants’ finger nicotine was higher in former smoker homes compared to former nonsmoker homes (p<.05). Finger nicotine levels among nonsmokers living in former smoker homes were significantly correlated with dust and surface nicotine and urine cotinine. Conclusions These findings indicate that THS accumulates in smokers’ homes and persists when smokers move out even after homes remain vacant for two months and are cleaned and prepared for new residents. When nonsmokers move into homes formerly occupied by smokers, they encounter indoor environments with THS polluted surfaces and dust. Results suggest that nonsmokers living in former smoker homes are exposed to THS in dust and on surfaces.

OBJECTIVE-There is no safe level of exposure to tobacco smoke. Thirdhand smoke is residual tobacco smoke contamination that remains after the cigarette is extinguished. Children are uniquely susceptible to thirdhand smoke exposure. The objective of this study was to assess health beliefs of adults regarding thirdhand smoke exposure of children and whether smokers and nonsmokers differ in those beliefs. We hypothesized that beliefs about thirdhand smoke would be associated with household smoking bans.METHODS-Data were collected by a national random-digit-dial telephone survey from September to November 2005. The sample was weighted by race and gender within Census region on the basis of US Census data. The study questions assessed the level of agreement with statements that breathing air in a room today where people smoked yesterday can harm the health of children.RESULTS-Of 2000 eligible respondents contacted, 1510 (87%) completed surveys, 1478 (97.9%) answered all questions pertinent to this analysis, and 273 (18.9%) were smokers. Overall, 95.4% of nonsmokers versus 84.1% of smokers agreed that secondhand smoke harms the health of children, and 65.2% of nonsmokers versus 43.3% of smokers agreed that thirdhand smoke harms children. Strict rules prohibiting smoking in the home were more prevalent among nonsmokers: 88.4% vs 26.7%. In multivariate logistic regression, after controlling for certain variables, belief

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