American journal of preventive medicine
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High school physical activity and nutrition policies can substantially affect student behavior and outcomes. Although public health officials and legislators have advocated for policy improvements, the extent to which policies have changed at local levels is not well understood. This study identifies latent classes of physical activity and nutrition policy environments and explores changes in prevalence of these classes from 2000 to 2016. ⋯ The estimated proportion of school districts with satisfactory physical activity and nutrition policy environments increased from 2000 to 2016, possibly because of legislative and policy advocacy efforts. However, many areas for improvement remain. Unsatisfactory latent classes that remained prevalent though 2016 may highlight policy domains that should be targeted by future interventions or subject to further research.
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Gun ownership is associated with firearm mortality, although this association differs across victim-offender relationships. This study examines the relationship between gun ownership and domestic versus nondomestic homicide rates by victim sex. ⋯ State-level firearm ownership rates are related to rates of domestic but not nondomestic firearm homicide.
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Observational Study
Feasibility of Automated Cameras to Measure Screen Use in Adolescents.
The influence of screens and technology on adolescent well-being is controversial and there is a need to improve methods to measure these behaviors. This study examines the feasibility and acceptability of using automated wearable cameras to measure evening screen use in adolescents. ⋯ Automated cameras offer a feasible, acceptable method of measuring prebedtime screen behavior, including environmental context and aspects of media multitasking in adolescents.
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This study assessed U.S. adults' attitudes toward lowering the nicotine levels in cigarettes to make them less addictive. ⋯ Most adults favor requiring cigarette makers to lower the nicotine levels in cigarettes, including 8 in 10 current cigarette smokers. These findings can help inform the U.S. Food and Drug Administration's recent proposal to pursue a nicotine reduction standard for cigarettes.