Dataset Information

Prevalence and characteristics of secondhand smoke and secondhand vapour exposure among youth.

ABSTRACT: BACKGROUND:It is well established that secondhand smoke (SHS) is harmful, and concern about the potential dangers associated with secondhand vapour (SHV) (ie, vapour from electronic vapour products, EVP) is growing. The present study examines the prevalence and characteristics associated with SHS and SHV exposure. METHODS:Data from youth aged 11-17 who completed the 2016 Florida Youth Tobacco Survey (n=58?616) were analysed. Demographics, past 30?day SHS and SHV exposure, environmental factors, cigarette and EVP use status, SHS and SHV harm perceptions, and tobacco susceptibility were assessed. Weighted multivariable logistic regressions were performed to examine characteristics associated with SHS and SHV exposure, and SHS and SHV exposure with tobacco susceptibility. RESULTS:Overall, 42% of Florida youth reported SHS exposure and 29% reported SHV exposure during the past 30 days. Living in a home where tobacco use was permitted (vs not permitted) was positively associated with SHS (adjusted OR (AOR) 2.57) and SHV exposure (AOR 1.56). Perceived SHS as harmful (vs not harmful) was positively associated with SHS (AOR 1.73) and SHV exposure (AOR 1.97), while perceived SHV as harmful was negatively associated with SHS (AOR 0.86) and SHV exposure (AOR 0.56). SHS and SHV exposure was significantly associated with susceptibility to cigarette and EVP use (AOR 1.40 and 2.08, respectively). CONCLUSIONS:Almost one-third of Florida youth reported SHV exposure. Factors associated with SHS and SHV exposure are somewhat similar, and exposure to SHS and SHV is associated with tobacco susceptibility in youth. Promoting tobacco-free homes is needed to protect youth from SHS and SHV exposure.

SUBMITTER: Bayly JE

PROVIDER: S-EPMC6338527 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Prevalence and characteristics of secondhand smoke and secondhand vapour exposure among youth.

Bayly Jennifer Ellen JE Bernat Debra D Porter Lauren L O'Dare Kellie K Choi Kelvin K

Tobacco control 20180718 3

<h4>Background</h4>It is well established that secondhand smoke (SHS) is harmful, and concern about the potential dangers associated with secondhand vapour (SHV) (ie, vapour from electronic vapour products, EVP) is growing. The present study examines the prevalence and characteristics associated with SHS and SHV exposure.<h4>Methods</h4>Data from youth aged 11-17 who completed the 2016 Florida Youth Tobacco Survey (n=58 616) were analysed. Demographics, past 30 day SHS and SHV exposure, environm ...[more]

PMID: 30021870

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Project description:BackgroundAirports may represent significant sources of secondhand smoke (SHS) exposure for both travelers and employees. While previously common smoking rooms have largely disappeared from US airports, smoking continues to occur outdoors at terminal entrances. SHS may be especially high at arrival areas, since they oftentimes are partially enclosed by overhead departures, creating stagnant microenvironments. This study assessed particulate matter <2.5 microns in diameter (PM2.5), a common surrogate for SHS, at airport terminal locations to evaluate both outdoor exposure risk and possible indoor drift of SHS from outdoor sources.MethodsA convenience sample of nine airport terminal arrival areas in the US state of Florida was surveyed between February and July 2018. PM2.5 levels were assessed outdoors and indoors at terminal entrances and at control areas far into terminal interiors. We also examined the impact of smoking location on SHS exposure by correlating cigarette and passing vehicle counts with PM2.5 levels at terminals with contrasting proximity of designated smoking locations to terminal entrances.ResultsAlthough outdoor PM2.5 levels (mean 17.9, SD 6.1 µg/m3) were significantly higher than indoors (p < 0.001), there was no difference between indoor areas directly inside terminal entrances and areas much further interior (mean 8.8, SD 2.6 vs mean 8.5, SD 3.0 µg/m3, p=0.49). However, when smoking areas were in close proximity to terminal entrances, the number of lit cigarettes and vehicular traffic per minute predicted 70% of the variance of PM2.5 levels (p < 0.001), which was attributable mostly to the cigarette number (β = 0.83; 95% CI (0.55 to 1.11); p < 0.001). This effect was not observed at smoking areas further away.ConclusionPM2.5 data did not suggest indoor drift from outside smoking. Nevertheless, absolute exposure outdoors was high and correlated with the location of designated smoking areas. Further studies are needed to examine the effect of microclimate formation on exposure risk.

Dataset Information

Prevalence and characteristics of secondhand smoke and secondhand vapour exposure among youth.

Publications

Prevalence and characteristics of secondhand smoke and secondhand vapour exposure among youth.

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