@article {Amalia49, author = {Beladenta Amalia and Xiaoqiu Liu and Alessandra Lugo and Marcela Fu and Anna Odone and Piet A van den Brandt and Sean Semple and Luke Clancy and Joan B Soriano and Esteve Fern{\'a}ndez and Silvano Gallus}, editor = {, and , and Fern{\'a}ndez, Esteve and Castellano, Yolanda and Fu, Marcela and Ballb{\`e}, Montse and Amalia, Beladenta and Tigova, Olena and L{\'o}pez, Maria Jos{\'e} and Continente, Xavier and Arechavala, Teresa and Henderson, Elisabet and Gallus, Silvano and Lugo, Alessandra and Liu, Xiaoqiu and Bosetti, Cristina and Borroni, Elisa and Davoli, Enrico and Colombo, Paolo and Semple, Sean and O{\textquoteright}Donnell, Rachel and Dobson, Ruaraidh and Clancy, Luke and Keogan, Sheila and Byrne, Hannah and Behrakis, Panagiotis and Tzortzi, Anna and Vardavas, Constantine and Vyzikidou, Vergina Konstantina and Bakelas, Gerasimos and Mattiampa, George and Boffi, Roberto and Ruprecht, Ario and Marco, Cinzia De and Borgini, Alessandro and Veronese, Chiara and Bertoldi, Martina and Tittarelli, Andrea and Gorini, Giuseppe and Carreras, Giulia and Cortini, Barbara and Verdi, Simona and Lachi, Alessio and Chellini, Elisabetta and Nicol{\'a}s, {\'A}ngel L{\'o}pez and Trapero-Bertran, Marta and Guerrero, Daniel Celdr{\'a}n and Radu-Loghin, Cornel and Nguyen, Dominick and Starchenko, Polina and Soriano, Joan B and Ancochea, Julio and Alonso, Tamara and Pastor, Mar{\'\i}a Teresa and Erro, Marta and Roca, Ana and P{\'e}rez, Patricia and Castillo, Elena Garc{\'\i}a}, title = {Exposure to secondhand aerosol of electronic cigarettes in indoor settings in 12 European countries: data from the TackSHS survey}, volume = {30}, number = {1}, pages = {49--56}, year = {2021}, doi = {10.1136/tobaccocontrol-2019-055376}, publisher = {BMJ Publishing Group Ltd}, abstract = {Introduction Exposure to secondhand aerosol from e-cigarette (SHA) may pose harmful effects to bystanders. This study aims to investigate the prevalence, duration and determinants of SHA exposure in various indoor settings in 12 European countries.Methods In 2017{\textendash}2018, we conducted a cross-sectional study, the TackSHS survey, on a representative sample of the population aged >=15 years in 12 European countries (Bulgaria, England, France, Germany, Greece, Ireland, Italy, Latvia, Poland, Portugal, Romania and Spain). We described the prevalence and duration of exposure to SHA in several indoor settings among 11 604 e-cigarette non-users. Individual-level and country-level characteristics associated with SHA exposure were also explored using multilevel logistic regression analyses.Results Overall, 16.0\% of e-cigarette non-users were exposed to SHA in any indoor setting at least weekly, ranging from 4.3\% in Spain to 29.6\% in England. The median duration of SHA exposure among those who were exposed was 43 min/day. {\textquoteleft}Other indoor settings{\textquoteright} (eg, bar and restaurant) was reported as the place where most of e-cigarette non-users were exposed (8.3\%), followed by workplace/educational venues (6.4\%), home (5.8\%), public transportation (3.5\%) and private transportation (2.7\%). SHA exposure was more likely to occur in certain groups of non-users: men, younger age groups, those with higher level of education, e-cigarette past users, current smokers, those perceiving SHA harmless and living in countries with a higher e-cigarette use prevalence.Conclusions We found inequalities of SHA exposure across and within European countries. Governments should consider extending their tobacco smoke-free legislation to e-cigarettes to protect bystanders, particularly vulnerable populations such as young people.Trial registration number NCT02928536.}, issn = {0964-4563}, URL = {https://tobaccocontrol.bmj.com/content/30/1/49}, eprint = {https://tobaccocontrol.bmj.com/content/30/1/49.full.pdf}, journal = {Tobacco Control} }