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Validation Information: 24h Recall (French adults)

Touvier 2011

Comparison between an interactive web-based self-administered 24h dietary record and an interview by a dietitian for large-scale epidemiological studies

Online self-administered data collection, by reducing the logistic burden and cost, could advantageously replace classical methods based on dietitian's interviews when assessing dietary intake in large epidemiological studies. Studies comparing such new instruments with traditional methods are necessary. Our objective was to compare one NutriNet-Santé web-based self-administered 24 h dietary record with one 24 h recall carried out by a dietitian. Subjects completed the web-based record, which was followed the next day by a dietitian conducted 24 h recall by telephone (corresponding to the same day and using the same computerised interface for data entry). The subjects were 147 volunteers aged 48-75 years (women 59.2 %). The study was conducted in February 2009 in France. Agreement was assessed by intraclass correlation coefficients (ICC) for foods and energy-adjusted Pearson's correlations for nutrients. Agreement between the two methods was high, although it may have been overestimated because the two assessments were consecutive to one another. Among consumersonly, the median of ICC for foods was 0.8 in men and 0.7 in women (range 0.5-0.9). The median of energy-adjusted Pearson's correlations for nutrients was 0.8 in both sexes (range 0.6-0.9). The mean Pearson correlation was higher in subjects ≤60 years (P= 0.02) and in those who declared being 'experienced/expert' with computers (P =0.0003), but no difference was observed according to educational level P= 0.12). The mean completion time was similar between the two methods (median for both methods: 25 min). The web-based method was preferred by 66.1% of users. Our web-based dietary assessment, permitting considerable logistic simplification and cost savings, may be highly advantageous for large population-based surveys.

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Validation Information

Author
Touvier
Year of Publication
2011

Tool Information

Dietary Exposure Measured
Full Nutrient, Food Groups
Tool Type
24 Hour Recall
Timeframe Tool Measures info
1 day
Portion Size Measures info
Portion sizes were estimated using photographs provided by the computerised interface
Reporting Method info
Retrospective
Format info
Online
Supplements Measured
Not reported
Administration Method info
Self administered

Study Information

Study Location
France
Associated Nutrient Database
French food composition table
Comparator Validated Against
24hr Recall

Participants

Sample Size
60 (Male), 87 (Female)
Lifestage
Adults
Age of Population

Range: 48-75 years

Sex
Male Only, Female Only
Other Notable Characteristics
Subjects were volunteers who registered their interest in participation on a specific website. The 24hour recall comparison was carried out by interview by a trained dietitian.

Total number of nutrients validated: 27 info

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:

  • Energy
  • Fat
  • Saturated Fat
  • Mono-unsaturated Fat
  • Poly-unsaturated Fat
  • Carbohydrates
  • Protein
  • Sugar
  • Non‐starch polysaccharides(NSP)
  • Sodium
  • Calcium
  • Iron
  • Zinc
  • Retinol
  • Folate
  • Folic Acid
  • Vitamin B12
  • Vitamin C
  • Fruit & Vegetables
  • Urinary Nitrogen

To find information on the other validated nutrients please read the validation study.

  • Energy
  • Macronutrients: 8
  • Micronutrients: 19
Comparator Lifestage Sex Nutrient Measured info Mean Difference Standard Deviation info Correlation Coefficient info Cohen's Kappa Coefficient Percentage Agreement Percentage Agreement Categories info Lower Limits of Agreement Upper Limits of Agreement
24hr Recall (interview by a dietitian) Adults Male Only Energy (kcal) -34.7 316 0.86 (P) -666.1 596.7
Energy (kJ) -144.8 1320 0.86 (P) -2784.0 2494.4
Protein (g) 2.2 15 0.88 (P) -27.3 31.7
Fat (g) -5 19 0.80 (P) -43.8 33.8
Saturated fat (g) -2.2 8 0.84 (P) -18.2 13.8
MUFA (g) -2.5 9 0.73 (P) -19.5 14.5
PUFA (g) -1.1 6 0.75 (P) -12.5 10.3
Carbohydrate (g) 3.3 45 0.85 (P) -85.7 92.3
Fibre (g) 2.8 16 0.77 (P) -29.6 35.2
Sodium (mg) -178.9 689 0.83 (P) -1556.6 1198.8
Calcium (mg) 23.1 186 0.89 (P) -348 394.2
Iron (mg) 0.5 6 0.85 (P) -10.7 11.7
Zinc (mg) 0.2 2 0.87 (P) -3.7 4.1
Retinol (µg) -19 1000 0.91 (P) -1820.8 1782.8
Folate (µg) 8.2 97 0.88 (P) -185 201.4
Vitamin B12 (µg) -1.6 10 0.86 (P) -21.4 18.2
Vitamin C (mg) 1.6 48 0.85 (P) -93.5 96.6
Fruits (g) -20 113 0.89 (ICC) -245.2 205.2
Vegetables (g) -6.2 138 0.82 (ICC) -283.2 270.8
24hr Recall (interview by a dietitian) Adults Female Only Energy (kcal) 5.4 311 0.85 (P) -616.6 627.4
Energy (kJ) 22.7 1300 0.85 (P) -2577.1 2622.5
Protein (g) 1 18 0.80 (P) -34.48 36.5
Fat (g) -1.7 17 0.81 (P) -36.6 33.2
Saturated fat (g) -1.3 7 0.82 (P) -15.5 12.9
MUFA (g) -1.2 8 0.79 (P) -17.4 15.0
PUFA (g) -0.9 5 0.64 (P) -11.2 9.4
Carbohydrate (g) 4.2 41 0.87 (P) -77.2 85.6
Fibre (g) 1.5 14 0.92 (P) -27.4 30.4
Sodium (mg) -194 1047 0.69 (P) -2287.5 1899.5
Calcium (mg) -33.6 280 0.71 (P) -592.8 525.6
Iron (mg) 1 6 0.85 (P) -11.2 13.2
Zinc (mg) 0 3 0.78 (P) -5.1 5.1
Retinol (µg) -13.1 291 0.54 (P) -594.9 568.7
Folate (µg) 8.9 85 0.82 (P) -160.3 178.1
Vitamin B12 (µg) 0 5 0.67 (P) -9.1 9.1
Vitamin C (mg) 5.5 34 0.91 (P) -62.9 73.9
Fruits (g) -17.4 96 0.89 (ICC) -209.4 174.6
Vegetables (g) -10.6 125 0.78 (ICC) -260.3 239.1

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.

Touvier M, Kesse-Guyot E, Mejean C, Pollet C, Malon A, Castetbon K & Hercberg S.Comparison between an interactive web-based self-administered 24h dietary record and an interview by a dietitian for large scale epidemiological studies. (2011) British Journal of Nutrition. 105 1055-1064