Browsing by Author "Craig, Leone CA"

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Assessing the relative validity of the Scottish Collaborative Group FFQ for measuring dietary intake in adults
(2017-02-01) Hollis, Jenna L; Craig, Leone CA; Whybrow, Stephen; Clark, Heather; Kyle, Janet AM; McNeill, Geraldine; University of Aberdeen.Rowett Institute; University of Aberdeen.Grampian Data Safe Haven (DaSH); University of Aberdeen.Other Applied Health Sciences; University of Aberdeen.Institute of Applied Health Sciences
Repeatability and validity of a food frequency questionnaire in free-living older people in relation to cognitive function
(Editions Serdi, 2008) Jia, Xueli; Craig, Leone CA; Aucott, Lorna S; Milne, Anne C; McNeill, Geraldine
Objectives: To determine the repeatability and validity of a self-administered, 175-item food frequency questionnaire (FFQ) in free-living older people and to assess whether these are influenced by cognitive function. Participants and setting: 189 free-living people aged 64-80y were recruited from participants in a previous study. Design: To assess repeatability, 102 (52M, 50F) participants completed the FFQ on two occasions three months apart. To assess validity, another 87 participants (44 M, 43 F) completed the FFQ and a four-day weighed diet record three months later. 25 nutrients were studied. Results: For repeatability, Spearman rank correlation coefficients were above 0.35 (p<0.05) for all nutrients. Cohen’s weighted Kappa was above 0.4 for all nutrients except starch, riboflavin, retinol, β-carotene, and calcium. There were no substantial differences in correlation coefficients between sub-groups divided by short-term memory test score. There was no clear pattern for correlation coefficients in sub-groups divided by executive function test score. For validity, the Spearman rank correlation coefficients were above 0.2 (p<0.05) for all nutrients except fat, mono-unsaturated fatty acids, niacin equivalents and vitamin D, and Cohen’s weighted kappa was above 0.4 for alcohol and was above 0.2 for 13 other nutrients. Participants in the lowest-score groups of short-term memory and executive function had the lowest median Spearman correlation coefficient. Conclusions: The FFQ had reasonable repeatability and validity in ranking nutrient intakes in this population though the results varied between nutrients. Poor short-term memory or executive function may affect FFQ validity in ranking nutrient intakes.
Socio-economic differences in diet, physical activity and leisure-time screen use among Scottish children in 2006 and 2010 : are we closing the gap?
(2017-04) McNeill, Geraldine; Masson, Lindsey F; Macdiarmid, Jennifer I; Craig, Leone CA; Wills, Wendy J; Bromley, Catherine; University of Aberdeen.Other Applied Health Sciences; University of Aberdeen.Environment and Food Security; University of Aberdeen.Rowett Institute; University of Aberdeen.Grampian Data Safe Haven (DaSH)