Preventive medicine
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Preventive medicine · Apr 2015
Prospective association of vitamin D with frailty status and all-cause mortality in older adults: Results from the KORA-Age Study.
To assess the prospective association of serum 25-hydroxyvitamin D [25(OH)D] levels with frailty status and all-cause mortality in a cohort of community-dwelling participants of the population-based KORA [Cooperative Health Research in the Region of Augsburg]-Age Study. ⋯ Very low 25(OH)D levels were independently associated with incident pre-frailty, pre-frailty/frailty combined and all-cause mortality.
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Preventive medicine · Apr 2015
Screen time is associated with depression and anxiety in Canadian youth.
This study examined the relationships between screen time and symptoms of depression and anxiety in a large community sample of Canadian youth. ⋯ Screen time may represent a risk factor or marker of anxiety and depression in adolescents. Future research is needed to determine if reducing screen time aids the prevention and treatment of these psychiatric disorders in youth.
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Preventive medicine · Apr 2015
Is change in availability of sports facilities associated with change in physical activity? A prospective cohort study.
We examined whether change in distance to or number of sports facilities is related to change in metabolic equivalent task (MET) hours/week. ⋯ An increase in distance to and decrease in number of sports facilities were associated with a decrease in physical activity suggesting that changes in availability of facilities may affect physical activity levels.
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Preventive medicine · Apr 2015
Suicidality, internalizing problems and externalizing problems among adolescent bullies, victims and bully-victims.
The aim of this study is to compare suicidality, internalizing problems and externalizing problems among adolescent victims, bullies and bully-victims. ⋯ Early intervention for adolescents frequently involved in bullying may reduce the onset of substance use and other mental disorders. It would be advisable for bullying interventions to include a focus on substance use and mental health problems. A reduction in these chronic and detrimental problems among adolescents could potentially lead to a concomitant reduction in bullying involvement.
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Preventive medicine · Apr 2015
"Couch-potatoeism" and childhood obesity: The inverse causality hypothesis.
The bulk of cross-sectional studies suggests that lower levels of physical activity are associated with childhood obesity. Although this has led to the general understanding that "couch-potatoes" are fat on account of their inactive lifestyles, cross-sectional studies do not imply causality. On the contrary, the contribution of physical activity to obesity during childhood is currently unclear, and lately, studies have suggested that "couch-potatoeism" could be the result of obesity rather than its cause. Coupled with evidence suggesting that interventions have had little effect on children's physical activity levels as well as on obesity, this inverse causality challenges the role of physical activity in childhood obesity prevention strategies.