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Objective: To explore the use of smartphones at mealtimes by children in fast food restaurants in the city of Barcelona and to assess the variables associated with this use., Method: A cross-sectional study was carried out. Data from 1616 children of estimated ages between 4 to 10 years were collected in fast-food restaurants in the ten districts of Barcelona between October 2021 and July 2022. The percentage of smartphone use, overall and according to covariates, were calculated. Chi-squared and Fisher's exact tests, and crude and adjusted Poisson regression models with robust variance, were carried out to assess the association between use and covariates., Results: Direct observation revealed that in 28.1% of meals with children at fast food restaurants, children used smartphones. Smartphone use was significantly higher in older children if their caregivers were younger than 30 years and when there was no caregiver-child interaction. In the adjusted model, higher patterns of smartphone use were associated with older children (aPR [95% CI]: 1.36[1.20-1.55]) and younger parents (aPR [95% CI]: 1.38[1.09-1.73])., Conclusions: Almost one in three meals with children at fast-food restaurants in Barcelona involves smartphone use. This finding underlines the importance of raising awareness of responsible screen use and promoting healthier environments for children at mealtimes., (Copyright © 2024 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.)

Objective: To describe knowledge of electronic cigarettes (e-cigarettes) and their perceived harmfulness in the population of Barcelona in 2013-2014., Methods: We used participants from a longitudinal study of a representative sample of the adult population in the city of Barcelona (n=736). The field work was conducted between May 2013 and February 2014., Results: Awareness of e-cigarette was 79.2%. The average level of knowledge was 4.4 points out of 10; there were statistically significant differences according to age, educational level, tobacco consumption, and nicotine dependence. Most participants had learned about e-cigarettes through traditional media (57.8%). Nearly half (47.2%) of the participants believed that e-cigarettes are less harmful than conventional cigarettes., Conclusion: Advertising of e-cigarettes in the media should be regulated because there is still scarce scientific evidence about the usefulness and harmful effects of these devices., (Copyright © 2014 SESPAS. Published by Elsevier Espana. All rights reserved.)