Preventive medicine
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Preventive medicine · Feb 2021
Review Meta AnalysisObjectively measured physical activity and all cause mortality: A systematic review and meta-analysis.
Current physical activity recommendations have been based on evidence from systematic reviews of questionnaire-based data. Questionnaire-based physical activity data are subject to both random and non-random error. If the estimated association between physical activity and health outcomes was different when a more accurate, objective measure was used, this would have important health policy implications for physical activity. ⋯ Individuals in the highest category of light, moderate-to-vigorous, and total physical activity had 40% (95%CI 20% to 55%), 56% (95%CI 41% to 67%), and 67% (95%CI 57% to 75%), respectively, lower risk for mortality compared to individuals in the lowest category of light, moderate-to-vigorous, and total physical activity. The summary hazard ratio for objectively measured physical activity and all cause mortality is lower than previously estimated from questionnaire based studies. Current recommendations for physical activity that are based on subjective measurement may underestimate the true reduction in mortality risk associated with physical activity.
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Medicaid expansion under the Patient Protection and Affordable Care Act (ACA) has the potential to improve reproductive health by allowing low-income women access to healthcare before and early in pregnancy. The aim of this study was to examine the effects of Oregon's Medicaid expansion on timely and adequate prenatal care. We included live births in Oregon from 2012 to 2015 and used individually-linked birth certificate and Medicaid eligibility data. ⋯ Pre-pregnancy Medicaid enrollment increased following Medicaid expansion (β = 0.55, p < 0.001) and was associated with both timely (β = 0.48, p < 0.001) and adequate receipt of prenatal care (β = 0.14, p < 0.001). Using two years of post-ACA data we found that Medicaid expansion had significant positive associations with Medicaid enrollment prior to pregnancy, which subsequently increased receipt of timely and adequate prenatal care. Our study provides evidence that expanding Medicaid has positive effects on women's use of healthcare.
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Preventive medicine · Feb 2021
Comparative StudyImpact of COVID-19 lockdown policy on homicide, suicide, and motor vehicle deaths in Peru.
Although lockdown measures to stop COVID-19 have direct effects on disease transmission, their impact on violent and accidental deaths remains unknown. Our study aims to assess the early impact of COVID-19 lockdown on violent and accidental deaths in Peru. Based on data from the Peruvian National Death Information System, an interrupted time series analysis was performed to assess the immediate impact and change in the trend of COVID-19 lockdown on external causes of death including homicide, suicide, and traffic accidents. ⋯ The slope in homicide in men during the lock-down period increased by 6.66 deaths per million men per year (95% CI:3.18, 10.15). External deaths presented a sudden drop after the lockdown was implemented and an increase in homicide in men was observed. Falls in mobility have a natural impact on traffic accidents, however, the patterns for suicide and homicide are less intuitive and reveal important characteristics of these events, although we expect all of these changes to be transient.
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Preventive medicine · Feb 2021
Core functions, knowledge bases and essential services: A proposed prescription for the evolution of the preventive medicine specialty.
The pandemonium from the 2020 pandemic calls for a greater emphasis on prevention, public health and population health. Yet the role of preventive medicine specialists, ideally qualified to lead this charge, remains difficult to situate within the houses of medicine and public health. To overcome this challenge to its identity and evolve to better tackle novel and on-going public health and population health problems, the authors propose that the specialty of preventive medicine should assert 3 core functions within preventive care; expand and modernize its knowledge base; and enhance its residency training accordingly. The authors also propose 10 essential services, not otherwise systematically provided by other specialties, that the preventive medicine specialty can optimally fulfill as its unique contributions within medicine and public health.
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Preventive medicine · Feb 2021
ReviewCharacteristics and impact of theory of planned behavior interventions on smoking behavior: A systematic review of the literature.
Theoretical frameworks such as the theory of planned behavior (TPB) can be applied to design and evaluate smoking behavior interventions. The present systematic review aimed to: (i) determine the characteristics of TPB-based interventions and their reported impact on smoking behavior and TPB variables, (ii) evaluate the level of methodological quality in the included studies, and (iii) assess the quality of the theoretical implementation. Studies were eligible for inclusion if the intervention targeted smoking behavior, was explicitly based on the TPB, and if smoking behavior or intention was measured at least at post-intervention. ⋯ Regarding methodological quality, unclear or high risks of bias were notably found regarding the selection of participants, data collection methods, withdrawal and drop-outs, and blinding. Regarding theoretical implementation, the reciprocal link between intervention techniques and TPB variables targeted remain unclear for a majority of studies. To better inform tobacco prevention and TPB research, future studies should more systematically use rigorous methods when designing, implementing, and reporting TPB-based interventions.