Trends in energy and macronutrient intakes in non-under-reporters vary with the method used to identify under-reporters
Article first published online: 31 JAN 2006
DOI: 10.1111/j.1365-277X.2006.00663.x
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How to Cite
Warwick, P. (2006), Trends in energy and macronutrient intakes in non-under-reporters vary with the method used to identify under-reporters. Journal of Human Nutrition and Dietetics, 19: 31–40. doi: 10.1111/j.1365-277X.2006.00663.x
Publication History
- Issue published online: 31 JAN 2006
- Article first published online: 31 JAN 2006
- Abstract
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Keywords:
- dietary intake;
- dietary methodology;
- trends;
- under-reporting
Abstract
Objective To investigate effects of using different methods to identify under-reporters on trends in dietary intake and physical activity level (PAL) in non-under-reporters.
Design Dietary intake and activity pattern were recorded by 887 female university students from 1988 to 2003. Energy expenditure (EE) and PAL were measured using a factorial method. Nine methods were used to identify under-reporters. Trends between 1988 and 2003 were determined from linear regression of median data for each year.
Results Prevalence of under-reporting varied with the method used, ranging from 22.2% to 66.7%. Trends that were consistent using all methods were a decrease in per cent of energy from fat and no change in alcohol intake or PAL (P < 0.05). Trends in energy and macronutrient intakes varied with the method used. Using the four methods that excluded the most under-reporters there were increases in energy and gram carbohydrate (CHO) intakes (P < 0.05), but no change in gram fat intake. Using the four methods that excluded the fewest under-reporters there was no change in energy or gram CHO intake, but a decrease in gram fat intake (P < 0.05).
Conclusion Trends in energy, fat and CHO intakes in non-under-reporters varied with the method used to identify under-reporters.

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