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Kanazawa's (2006) national- and individual-level analyses seem to support his hypothesis that: IQ scores are better predictors of health than wealth or inequality, except in 'evolutionarily familiar' sub-Saharan Africa which offers limited selection for intelligence (British Journal of Health Psychology 11: 623-42). However, the present paper exposes the(More)
Background Numerous studies have reported inverse associations between birth weight and a range of diseases in later life. These have led to the development of the 'foetal origins of adult disease hypothesis'. However, many such studies have only been able to demonstrate a statistically significant association between birth weight and disease in later life(More)
The four models proposed for exploring the foetal origins of adult disease (FOAD) hypothesis use the product term between size at birth and current size to determine the relative importance of pre- and post-natal growth on disease in later life. This is a common approach for testing the interaction between an exposure (in this instance size at birth) and an(More)
BACKGROUND To clarify the nature of the relationship between food deprivation/undernutrition during pre- and postnatal development and cardiovascular disease (CVD) in later life, this study examined the relationship between birth weight (as a marker of prenatal nutrition) and the incidence of hospital admissions for CVD from 1997-2005 amongst 873 Guernsey(More)
Aims: To establish the relationship between household composition and sleep, we: 1) used latent class analysis (LCA) to classify households; 2) examined the reliability and stability of household composition classes over time; 3) conducted multinomial logistic regression analyses to determine the relationship between household class and the self-reported(More)
BACKGROUND Emergency Care Practitioners (ECPs) have recently been deployed to provide out-of-hours primary care home visits - a practice development that has been supported by policy makers. The aim of the study was to evaluate the care provided to patients receiving out-of-hours home visits from ECPs in London from the patients' perspective and to assess(More)
Weinberg (1) highlights the challenges and pitfalls faced when statistically analyzing data from observational (nonrandomized) studies to explore causal hypotheses. She reminds us that statistically significant associations between variables in such studies can be ambiguous. Extreme caution is required when statistical modeling of data from observational(More)
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