Secondhand tobacco smoke exposure among children under 5 years old: questionnaires versus cotinine biomarkers: a cohort study.
Nerea MourinoMónica Pérez-RíosMaria Isolina Santiago-PérezBruce LanphearKimberly YoltonJoseph M BraunPublished in: BMJ open (2021)
Concordance between mother-reported SHS exposure among children under 5 years and serum cotinine improved considerably after applying the cohort-specific and age-specific cut-points. Future studies are necessary to verify these results.
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