Preventive medicine
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Preventive medicine · Feb 2022
Observational StudyPfizer-BioNTech vaccine effectiveness against Sars-Cov-2 infection: Findings from a large observational study in Israel.
Development of an effective vaccine against Covid-19 is crucial to reducing infection. mRNA BNT162b2, developed and manufactured by Pfizer-BioNTech, was one of the first FDA-approved vaccinations reporting high efficacy (95%) and minimal side effects. Evaluating effectiveness of BNT162b2 in a general population has been made possible after the implementation of a nation-wide vaccination program in Israel. This retrospective cohort study was carried out in Maccabi HealthCare services, Israel among 1.6 million members aged 16 and over. ⋯ BNT162b2 was found effective for the total population group for infection, hospitalization and mortality, with adjusted VE of 93·0% (CI:92·6-93·4%), 93·4% (CI:91·9-94·7%) and 91·1% (CI:86·5-94·1%) respectively. VE for infection was lower for participants aged 75 and over, and for those with hypertension, diabetes and obesity. This study strengthens the evidence that the Pfizer-BioNTech vaccination is effective in preventing infection, hospitalization and mortality.
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Preventive medicine · Feb 2022
ReviewA scoping review of adherence to WHO health promoting school framework by school-based interventions to promote physical activity and cardiorespiratory fitness among 6- to 10-year-old children.
Physical inactivity, a leading cause of mortality, tracks from childhood to adulthood. Effective interventions to promote physical activity (PA) at a young age are therefore needed. The aim of this scoping review was to provide an overview of school-based interventions for the promotion of PA, cardiorespiratory fitness (CRF), and the reduction of sedentary behaviours (SB) among six- to ten-year-old school children, and map these interventions to the WHO Health Promoting Schools framework. ⋯ A higher percentage of effective interventions were found for theory-based interventions. Some single-feature interventions were found to be effective while no specific feature combination seemed to be associated with better intervention effectiveness. Theory-based single- as well as multi-feature interventions seem to have the potential to improve effectiveness with regard to PA, CRF, and SB outcomes.
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Preventive medicine · Feb 2022
Randomized Controlled TrialEvaluation of the Swedish school-based program "tobacco-free DUO" in a cluster randomized controlled trial (TOPAS study). Results at 2-year follow-up.
Friends' and parents' tobacco use are strong predictors of tobacco uptake among adolescents, however the effectiveness of interventions based on public commitments and agreements to remain tobacco-free are not established. Here, we evaluated the effectiveness of the school-based Swedish program Tobacco-Free Duo (T-Duo) in preventing adolescents from initiating tobacco use (TOPAS study). T-Duo is a multi-component intervention witha formal agreement between a student and an adult partner to remain tobacco-free during the entire 3-year study period as core component. ⋯ Protocol: Galanti, M. R., Pulkki-Brännström, A.-M., Nilsson, M., 2020. Tobacco-free duo adult-child contract for prevention of tobacco use among adolescents and parents: protocol for a mixed-design evaluation. JMIR Res. Protoc. 9, e21100. doi:10.2196/21100.
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Preventive medicine · Feb 2022
Two randomized controlled trials for colorectal cancer screening invitations developed using a behavioral science approach.
The effectiveness of behaviorally informed, targeted invitations to standard invitations and to no invitation (control arm, primary analysis) were compared in the context of an organized colorectal cancer (CRC) screening program. Two multi-arm, pragmatic randomized controlled trials in men (arms: male-specific, unisex, standard invitation, or no invitation) and in women (arms: unisex, standard invitation, or no invitation), were conducted in Ontario, Canada. Eligible persons aged 50-74, due for CRC screening, were randomized. ⋯ In both trials, the findings were similar for the secondary outcome. Mailed invitations were effective for both men and women. With greater targeting using the behaviorally informed invitations, the magnitude of benefit relative to no invitation appeared to increase. (ClinicalTrials.gov, NCT02364895).
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Preventive medicine · Feb 2022
Changes in harm perception of ENDS and their predictors among US adolescents: findings from the population assessment of tobacco and health (PATH) study, 2013-2018.
Electronic nicotine delivery systems (ENDS) use has dramatically increased in the US. This study aimed to characterize changes in ENDS harm perception over time and associated predictors among US adolescents. Data from the 2013-2018 Population Assessment of Tobacco and Health Study (PATH) for adolescents (12-17 years) were utilized. ⋯ Additionally, having ever used ENDS or alcohol were more likely to be associated with reduced ENDS-related harm perception over time (P's < 0.05). Our results show that while ENDS-related harm perception have generally increased, this does not appear to be equally experienced across all adolescents, potentially highlighting the importance of at-risk groups and targets for intervention. This study can help identify individuals at risk of ENDS initiation because of their favorable ENDS harm perception profile, as well as guide the development of ENDS risk communication interventions for adolescents.