Martínez-Sánchez, Jose M.González-Marrón, AdriánMartín-Sánchez, Juan CarlosSureda, XiscaFu, MarcelaPérez Ortuño, Raúl, 1976-Lidón-Moyano, CristinaGalán, IñakiPascual Esteban, José A.Fernández, Esteve2018-05-312018-05-312017Martínez-Sánchez JM, González-Marrón A, Martín-Sánchez JC, Sureda X, Fu M, Pérez-Ortuño R et al. Validity of self-reported intensity of exposure to second-hand smoke at home against environmental and personal markers. Gac Sanit. 2018;32(4):393-5. DOI: 10.1016/j.gaceta.2017.08.0020213-9111http://hdl.handle.net/10230/34759The 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.application/pdfeng© 2017 SESPAS. Published by Elsevier España, S.L.U. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)Tabaquisme passiuinfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.gaceta.2017.08.002CotininaCotinineHogaresHome environmentHumo de tabaco ambientalMarcadores personalesNicotinaNicotinePersonal markersSecond hand smokeValidaciónValidityinfo:eu-repo/semantics/openAccess