Abstract:From energy, nutrient and food intake data obtained with 14 24-hours recalls from 43 male and 53 female employees, aged from 30 to 40 years, the authors calculated and compared the single and group means for 1, 3, 5, 7, 10 and 14 days, respectively. It is tried to deduce from them the lowest number of interviews necessary for reliable statements. As the intra-individual variances were greater than the variances within the groups, the diet of such a group cannot be characterized on the basis of a single intervi… Show more
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