Impact of social networks and norms on e-cigarette use among adolescents in Southern California: a prospective cohort study.
| Autor: | Piombo SE; Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, California, USA., Barrington-Trimis J; Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, California, USA., Valente TW; Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, California, USA. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | BMJ public health [BMJ Public Health] 2023; Vol. 1 (1). Date of Electronic Publication: 2023 Nov 25. |
| DOI: | 10.1136/bmjph-2023-000163 |
| Abstrakt: | Objective: Using social network analysis, we assessed the mechanisms of social influence that promote e-cigarette use in adolescent networks. Methods: Data on health behaviours and friendship networks from a cohort of 10 high schools in Southern California (N=1599) were collected in grade 9 Spring 2021 (W1), grade 10 Fall 2021 (W2) and Spring 2022 (W3). Two mixed effects logistic regression models were estimated (full sample and subsample of non-vapers only) to evaluate the associations of W1 and W2 pro-vaping norms, peer e-cigarette use exposure and prior e-cigarette use (full sample) on past 6-month vaping at W3, adjusting for demographic covariates and school clustering. Results: Previous vaping was the strongest predictor of past 6-month vaping at W3 among the full sample. Greater exposure to friend e-cigarette use at W2 (adjusted OR (AOR)=12.2, 95% CI 4.04 to 36.5) and greater pro-vaping norms at W2 (AOR=2.63, 95% CI 1.24 to 5.55) were significantly and positively associated with increased odds of initiating e-cigarette use at W3 among students with no lifetime e-cigarette use. Conclusion: Peer network exposure and pro-vaping norms are significant predictors of vaping initiation even when network vaping prevalence is low. Competing Interests: Competing interests None declared. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|