PEQI: A population dietary quality index for developed countries
Christopoulos, K.; Christou, C.; Eleftheriou, K.; Hassapis, C.
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BackgroundWhile there are numerous dietary quality indices for individuals, a lon-gitudinal population-level index is missing from the literature. This article presents a novel population-level dietary index, the Population Eating Quality Index (PEQI) that measures a countrys annual dietary quality. MethodsUsing data from the Food and Agriculture Organization and the Global Dietary Database, PEQI comprises of ten waste-adjusted food items for which weighted scores are assigned according to their effect on human health. Associations between the PEQI and health outcomes for a panel of developed countries were studied to further validate the instrument. ResultsThe index shows good predictive ability regarding life expectancy at birth and premature mortality for an average developed country. ConclusionsPEQI has multiple potential applications in the ecological study of health and nutrition as an exposure or even as an outcome.
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