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Full-Text Articles in Social and Behavioral Sciences
Relative Bias In Diet History Measurements: A Quality Control Technique For Dietary Intervention Trials, Gina S. Martin, Linda C. Tapsell, Marijka Batterham, Kenneth G. Russell
Relative Bias In Diet History Measurements: A Quality Control Technique For Dietary Intervention Trials, Gina S. Martin, Linda C. Tapsell, Marijka Batterham, Kenneth G. Russell
Faculty of Health and Behavioural Sciences - Papers (Archive)
Objective: Investigation of relative bias in diet history measurement during dietary intervention trials.
Design: Retrospective analysis of human dietary data from two randomised controlled trials examining modified fat diets in the prevention and treatment of type II diabetes mellitus.
Setting: Wollongong, Australia.
Subjects: Thirty-five overweight, otherwise healthy subjects in trial 1 and 56 subjects with diabetes in trial 2.
Interventions: Diet history interviews and three-day weighed food records administered at one-month intervals in trial 1 and three-month intervals in trial 2.
Results: In a cross-sectional bias analysis, graphs of the association between bias and mean dietary intake showed that bias …