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Validation Information: Diet History Interview (DISHES 98)
Validity of DISHES 98, a computerised dietary history interview: energy and macronutrient intake
Objective: To estimate the relative validity of a computerised dietary history instrument (DISHES 98).
Settings: Munich and Berlin.
Subjects: A total of 148 persons aged 19–59 y recruited from two research centres.
Design: A relative validation study. Energy and macronutrient intakes obtained with DISHES 98 were compared to those assessed with 3-day weighed dietary records and with a 24 h dietary recall.
Results: Intakes of energy, total, saturated and monounsaturated fat, polysaccharides and alcohol were significantly higher and intake of dietary fibre was significantly lower with the 3-day records than with DISHES 98. For intakes of total, animal and vegetable protein, total carbohydrates, mono- and disaccharides and cholesterol the mean difference between DISHES 98 and the 3-day dietary records was less than 5% of the intake with DISHES 98. Pearson's correlation coefficients between DISHES 98 and 3-day records varied from 0.34 for intake of polyunsaturated fat to 0.69 for intake of disaccharides and from 0.27 for polyunsaturated fat to 0.65 for total carbohydrates between DISHES 98 and the 24 h recall. The proportion of participants classified into the same or adjacent quintile of intake varied between 66.9% for polyunsaturated fat and 90.4% for alcohol comparing DISHES 98 and 3-day records and between 60.2% for polyunsaturated fat and 78.4% for total carbohydrates comparing DISHES 98 and 24 h recalls.
Conclusion: The observed differences between DISHES 98 and the other methods are in an acceptable range for assessing dietary intake in epidemiologic studies.
Total number of nutrients validated: 7
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: 7
- 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||Adults||Both||Energy (kJ)||-610||2470||0.64 (P)||0.27||41.9||5||-5550||4330|
|Protein (g)||-1.5||24.6||0.61 (P)||0.07||35.8||5||-50.7||47.7|
|Fat (g)||-7.6||30.9||0.51 (P)||0.16||32.4||5||-69.4||54.2|
|Saturated fat (g)||-2.4||13.9||0.54 (P)||0.17||33.8||5||-30.2||25.4|
|MUFA (g)||-4.3||11.7||0.51 (P)||0.16||32.4||5||-27.7||19.1|
|PUFA (g)||-0.7||6.5||0.34 (P)||0.10||27.7||5||-13.7||12.3|
|Carbohydrates (g)||-7.9||75.3||0.60 (P)||0.24||39.2||5||-158.5||142.7|
|Fibre (g)||2.1||7.3||0.60 (P)||0.23||38.5||5||-12.5||16.7|
|24hr Recall||Adults||Both||Energy (kcal)||-146||590||0.64 (P)||0.27||41.9||5||-1327||1035|
|Energy (kJ)||-100||2790||0.61 (P)||0.27||41.2||5||-5680||5480|
|Protein (g)||7.0||30.1||0.46 (P)||0.24||39.2||5||-53.2||67.2|
|Fat (g)||-2.3||37.2||0.39 (P)||0.16||33.1||5||-76.7||72.1|
|Saturated fat (g)||-0.7||16.7||0.43 (P)||0.16||32.4||5||-34.1||32.7|
|MUFA (g)||-2.2||14.9||0.33 (P)||0.12||29.7||5||-32||27.6|
|PUFA (g)||0.3||8.9||0.27 (P)||0.15||23.0||5||-17.5||18.1|
|Carbohydrates (g)||-3.2||76.0||0.65 (P)||0.32||45.3||5||-155.2||148.8|
|Fibre (g)||3.0||9.5||0.51 (P)||0.16||33.1||5||-16||22|
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.
Mensink GB, Haftenberger M, Thamm M. Original Communications-Validity of DISHES 98, a computerised dietary history interview: Energy and macronutrient intake. European Journal of Clinical Nutrition. 2001;55(6):409-17