Sources and Biomarkers of Secondhand Tobacco Smoke Exposure in Urban Adolescents.

ABSTRACT:

Objective

In an urban adolescent population, we evaluated sources of exposure to secondhand smoke exposure (SHS), examined differences in exposure by race/ethnicity, age and sex, and determined the relationship between exposure source(s) and the biomarkers cotinine and NNAL.

Methods

Participants were recruited from a public hospital-based outpatient clinic in San Francisco, CA, USA.

Results

Of a sample of N = 298 adolescents screened, 235 were biologically confirmed to be exposed to tobacco smoke. Of those, N = 16 were active smokers and N = 219 were exposed to SHS; 91 (39%) were heavily SHS exposed (median cotinine = 0.76 ng/mL) and 128 (54%) had light SHS exposure (median cotinine = 0.11 ng/mL). Within those SHS exposed, the most common source of exposure was in a p

SUBMITTER: Nardone N 

PROVIDER: S-EPMC7967984 | biostudies-literature | 2020 May - Jun

REPOSITORIES: biostudies-literature