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Validation Information: Estimated Food Diary
Validation of food diary method for assessment of dietary energy and macronutrient intake in infants and children aged 6 ± 24 months
Objectives: To compare the estimated food diary record (ED) method against weighed intake record method (WI) for assessing dietary intake in infants and children aged 6 - 24 months; additionally, to compare WI with metabolisable energy intake (ME) measured by doubly labelled water (DLW) in infants aged 6 - 12 months.
Design: Cross-over study of 5 day WI vs 5 day ED.
Subjects: Seventy-two children aged 6 - 24 months.
Methods: Subjects were randomly assigned to one method during week 1 crossing over to the alternative method in week 2. Data were coded and translated into daily nutrient intakes using COMP-EAT version 5 nutritional analysis software. The analysis compared energy, protein, fat and carbohydrate. Twenty-one infants were dosed with DLW for measurement of total energy expenditure (TEE) and ME.
Results: Mean energy intake calculated from WI and ED was 3782 and 3920 kJ/day, respectively. There was no significant difference between these values. Using WI as a reference, ED showed a mean bias of 138 kJ/day, equivalent to 3.6% of mean energy intake. Limits of agreement (± 2 s.d. of the bias) were wide at ±1385 kJ/day. There were no significant differences between methods for any of the nutrient sub-classes. Using DLW as a reference, WI showed a mean bias of 243 kJ/day, equivalent to 7.3% of mean energy intake, limits of agreement were wide at ±1686 kJ=day.
Conclusion: There is no evidence from the present analysis that ED is less accurate than WI for assessing energy and nutrient sub-class intakes in groups of this age but this good agreement between methods in groups does not extend to individuals.
Total number of nutrients validated: 4
Not all of the nutrients validated in the validation studies are included in the table below, as statistical data was only selected to be displayed for a number of nutrients, this included:
- Saturated Fat
- Mono-unsaturated Fat
- Poly-unsaturated Fat
- Non‐starch polysaccharides(NSP)
- Folic Acid
- Vitamin B12
- Vitamin C
- Fruit & Vegetables
- Urinary Nitrogen
To find information on the other validated nutrients please read the validation study.
- Macronutrients: 3
- Micronutrients: 0
|Comparator||Lifestage||Sex||Nutrient Measured||Mean Difference||Standard Deviation||Correlation Coefficient||Cohen's Kappa Coefficient||Percentage Agreement||Percentage Agreement Categories||Lower Limits of Agreement||Upper Limits of Agreement|
|Weighed Food Diary||Infants and toddlers||Both||Energy (kcal)||33||165||-299||364|
Some results have been calculated using statistical techniques based on the published data.
For further information on statistical terms click on Statistical tests used in validation studies
All correlations coefficients in the table are unadjusted unless stated otherwise. For adjusted correlation coefficients and other statistical methods used in the study e.g. paired t-tests, please read the validation articles.
- # Adjusted
- † Energy adjusted.
- ‡ For loge-transformed, energy-adjusted nutrient intakes.
- ^ Adjacent included.
- ᵟ Participants provided identical responses.
- (w) = Weighted.
Lanigan JA, Wells JC, Lawson MS, Lucas A. Validation of food diary method for assessment of dietary energy and macronutrient intake in infants and children aged 6-24 months. European journal of clinical nutrition. 2001 Feb 1;55(2):124.