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- W3010409777 abstract "Abstract Starting university is an important time with respect to dietary changes. This study reports a novel approach to assessing student diet by utilising student-level food transaction data to explore dietary patterns. First-year students living in catered accommodation at the University of Leeds (UK) received pre-credited food cards for use in university catering facilities. Food card transaction data were obtained for semester 1, 2016 and linked with student age and sex. k-Means cluster analysis was applied to the transaction data to identify clusters of food purchasing behaviours. Differences in demographic and behavioural characteristics across clusters were examined using χ 2 tests. The semester was divided into three time periods to explore longitudinal changes in purchasing patterns. Seven dietary clusters were identified: ‘Vegetarian’, ‘Omnivores’, ‘Dieters’, ‘Dish of the Day’, ‘Grab-and-Go’, ‘Carb Lovers’ and ‘Snackers’. There were statistically significant differences in sex ( P < 0·001), with women dominating the Vegetarian and Dieters, age ( P = 0·003), with over 20s representing a high proportion of the Omnivores and time of day of transactions ( P < 0·001), with Dieters and Snackers purchasing least at breakfast. Many students ( n 474, 60·4 %) changed dietary cluster across the semester. This study demonstrates that transactional data present a feasible method for dietary assessment, collecting detailed dietary information over time and at scale, while eliminating participant burden and possible bias from self-selection, observation and attrition. It revealed that student diets are complex and that simplistic measures of diet, focusing on narrow food groups in isolation, are unlikely to adequately capture dietary behaviours." @default.
- W3010409777 created "2020-03-13" @default.
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- W3010409777 date "2020-03-05" @default.
- W3010409777 modified "2023-09-26" @default.
- W3010409777 title "Assessing diet in a university student population: a longitudinal food card transaction data approach" @default.
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- W3010409777 doi "https://doi.org/10.1017/s0007114520000823" @default.
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