Preventive medicine
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Preventive medicine · Apr 2008
Review Meta AnalysisVitamin D and calcium intake in relation to risk of endometrial cancer: a systematic review of the literature.
In response to a recent ecologic study of UV exposure and endometrial cancer incidence, we present the epidemiologic evidence on the relation between intake of vitamin D and its metabolically related nutrient, calcium, and the occurrence of endometrial cancer. ⋯ The limited epidemiological evidence suggests no relation between endometrial cancer in the ranges of dietary vitamin D examined, and suggests a possible inverse association for calcium from supplements. Prospective studies, ideally including plasma 25(OH) D to estimate vitamin D input from diet and sun exposure, are needed to further explore these hypotheses.
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Research evidence addressing effectiveness of tobacco use prevention interventions has accumulated since the 1970s. Systematic reviews 1985-2006 were considered, building on previous syntheses and spanning tobacco control and prevention efforts to date. Practitioners' experience was drawn upon to supplement research evidence. ⋯ There is strong evidence that school-based tobacco use prevention programs are largely effective for most tobacco use related outcomes, at least in the short term.
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To examine associations between household income, access to sports facilities and gyms, and physical activity in an English city. ⋯ People in low income households, who are more likely to adopt low levels of activity, are least well served by affordable facilities that would enable them to become more active. If the British Government is to meet targets for improving levels of physical activity, it may need to consider how market forces might be creating an inequitable distribution of facility provision.
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Preventive medicine · Apr 2008
Health locus of control beliefs and socio-economic differences in self-rated health.
Social inequalities in health are well documented in the social epidemiology literature. However, less is known about the mechanisms linking individual and area-level socio-economic status to health. In this paper we examine whether health locus of control (HLC) beliefs can help to explain socio-economic differences in self-rated health using the multidimensional HLC scale. ⋯ Some evidence was found that HLC forms part of the pathway between individual and neighbourhood socio-economic status and health. Future research should further explore the psychological consequences of living in economically deprived conditions, alongside material, social and behavioural processes, and examine how this impacts upon people's health and well-being.