Martínez Sánchez, José M.González Marrón, AdriánMartín Sánchez, Juan CarlosSureda, XiscaFu Balboa, MarcelaPérez Ortuño, RaúlLidón Moyano, CristinaGalán, IñakiPascual, José AntonioFernández Muñoz, Esteve2021-02-192021-02-192018-070213-9111https://hdl.handle.net/2445/174094The objective of this study was to assess the validity of two questions about the perception of intensity of exposure to secondhand smoke (SHS) at home using as a reference environmental markers (airborne nicotine and benzene) and biomarkers of exposure (cotinine in saliva and urine). This was a cross-sectional study in a convenience sample of 49 non-smoking volunteers. We found a high correlation between self-reported SHS exposure and airborne nicotine (rsp=0.806, p<0.05), salivary cotinine (rsp=0.752, p<0.05), and urinary cotinine (rsp=0.626, p<0.05). We did not find differences between the score question and the conventional ones (p >0.05). In conclusion, the significant correlation of the two questions proposed with environmental markers and personal markers indicates their potential validity to assess exposure to SHS at home.3 p.application/pdfengcc-by-nc-nd (c) Sociedad Española de Salud Pública y Administración Sanitaria (SESPAS), 2018http://creativecommons.org/licenses/by-nc-nd/3.0/esLlarNicotinaMarcadors bioquímicsHomeNicotineBiochemical markersinfo:eu-repo/semantics/article6789222021-02-19info:eu-repo/semantics/openAccess