Preventive medicine
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Preventive medicine · Dec 2022
Randomized Controlled TrialE-cigarette and combusted tobacco abstinence among young adults: Secondary analyses from a U.S.-based randomized controlled trial of vaping cessation.
To examine patterns of abstinence from e-cigarettes, combusted tobacco products (CTPs), both, or neither among young adults enrolled in a U.S.-based randomized trial of a text message vaping cessation intervention. ⋯ A text message vaping cessation intervention was effective in promoting dual abstinence from e-cigarettes and CTPs among young adults. The advantage of treatment over control was equivalent for Exclusive E-cigarette Users and Dual Users. Rates of dual abstinence were higher among exclusive vapers than dual users, signaling the need for more research to optimize cessation programs for poly-tobacco users.
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Preventive medicine · Dec 2022
Neighborhood segregation, tree cover and firearm violence in 6 U.S. cities, 2015-2020.
Neighborhood segregation by race and income is a structural determinant of firearm violence. Addressing green space deficits in segregated neighborhoods is a promising prevention strategy. This study assessed the potential for reducing firearm violence disparities by increasing access to tree cover. ⋯ A 1-SD increase in tree cover was associated with a 9% reduction (IRR = 0.91, 95% CI [0.86, 0.97], p < 0.01). Simulated achievement of 40% baseline tree cover was associated with reductions in firearm violence, with the largest reductions in highly-deprived neighborhoods. Advancing tree equity would not disrupt the fundamental causes of racial disparities in firearm violence exposure, but may have the potential to help mitigate those disparities.
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Preventive medicine · Dec 2022
Type of household firearm ownership and firearm suicide among adolescents, 1976-2018.
After declining steadily for almost two decades, the rate of firearm suicide among adolescents (aged 15-19 years) has increased nearly every year since 2007. At the same time, overall levels of household firearm ownership have been declining. In this paper, we examined whether and how types of firearms in the homes of adolescents have changed over time, and the extent to which such changes are associated with trends in firearm suicides among adolescents. ⋯ We found no significant relationship between firearm suicide among Black adolescents and firearm ownership among Black households, regardless of gun type, which is potentially unsurprising given that firearm ownership is substantially lower in Black households compared to White households. Possibly reflecting race and gender differences in household gun ownership, our findings also show that rates of firearm suicide were lower for Black and female adolescents and highest for White male adolescents. Taken together, these findings provide new evidence on the relationship between trends in firearm ownership and adolescent firearm suicide and address important questions about the influence of race and gender for understanding firearm suicide among adolescents.
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Preventive medicine · Dec 2022
Relating individual differences in the reinforcing value of smoking and dependence severity to nicotine exposure levels in vulnerable populations.
Cigarette smoking is overrepresented in populations with psychiatric conditions and socioeconomic disadvantage. Greater understanding of the role of reinforcement and nicotine dependence in smoking among vulnerable populations may facilitate development of better targeted interventions to reduce smoking. Prior research demonstrated that individual differences in the reinforcing value of smoking and nicotine-dependence severity predicted total nicotine-exposure in vulnerable populations. ⋯ The CPT, FTND, and B-WISDM models accounted for 23.76%, 32.45%, and 29.61% of the variance in COT+3HC levels, respectively. Adding CPT to the FTND model failed to increase the variance accounted for and adding it to the B-WISDM model did so by only 1.2% demonstrating considerable overlap in the variance in nicotine exposure levels accounted for by these three instruments. These results provide new knowledge on the relationship between individual differences in the reinforcing value of smoking and nicotine-exposure levels and suggest differences in reinforcing value may underpin a considerable portion of the variance in nicotine exposure accounted for by dependence severity.
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Preventive medicine · Dec 2022
Heterogeneous effects of spatially proximate firearm homicide exposure on anxiety and depression symptoms among U.S. youth.
The burden of firearm homicide in the United States is not evenly distributed across the population; rather, it disproportionately affects youth in disadvantaged and marginalized communities. Research is limited relevant to the impacts of exposure to firearm violence that occurs near where youth live or attend school - spatially proximate firearm violence - on youths' mental health and whether those impacts vary by characteristics that shape youths' risk for experiencing that exposure in the first place. Using a dataset linking the Fragile Families and Child Wellbeing Study with the Gun Violence Archive (N = 3086), we employed propensity score matching and multilevel stratification to examine average and heterogeneous associations between spatially proximate firearm homicide exposure and anxiety and depression among all youth and then separately for boys and girls. ⋯ Furthermore, heterogeneous effects analyses yielded evidence that the average association is driven by youth, and particularly boys, who are the most disadvantaged and have the highest risk of firearm homicide exposure. The results of this study suggest that the accumulation of stressors associated with structural disadvantage and neighborhood disorder, coupled with exposure to spatially proximate and deadly firearm violence, may make boys and young men, particularly Black boys and young men, uniquely vulnerable to the mental health impacts of such exposure. Ancillary analyses of potential effect moderators suggest possible future areas of investigation.