Table 6 Summary of 24-HDR and their characteristics
| Â | Population | Purpose | Method of admin | Structure | Prompts | Portion size |
|---|---|---|---|---|---|---|
Adults | ||||||
Adults 30–70 years | Provide comparable food consumption data between several European countries | Computerised, face-to-face interview | 1. ‘Quick list’ Chronological entry of all foods and recipes consumed during day 2. Foods are entered per meal 3. Each ‘quick list’ item is described and quantified | Yes Program mediated Checklist of foods which are easily forgotten is displayed on screen | Estimated 6 quantification methods including photos (2–6 portion sizes), shapes, household measurements, standard units, standard portions, volume method. If the portion size estimation methods is unknown this can be entered by the interviewer | |
 Van Diepen et al. [54] | Adults/Students Age range not reported | Examine relationship between Mediterranean diet and obesity | Not reported | Not reported | Not reported | Not reported |
Adolescents | ||||||
Adolescents 13–17 years | Assess food and nutrient intake | Computerised, self-administered | Divided into 6 meal occasions. For each occasion the user selects all food and beverages consumed from a standardised food list. Foods and beverages which are not included in the list can be added | Yes Program mediated When appropriate, a text box appears on the screen probing for food items which are often eaten in combination with other items (for example, chips, ‘Don’t forget mayonnaise/ ketchup etc.!’) When extreme amounts are entered; a warning is given i.e. zero values are not accepted. At the end of the 24-h recall, the program checks entries for occurrence of fruit, vegetables and sweets. If one of these items has not been entered, the adolescent is asked whether it really was not consumed | Estimated Information on quantities was gathered by using household measurements or pictures of portion sizes | |
Children | ||||||
 EYHS [60] | Children 9 years 15 years | Examine personal, environmental, and lifestyle influences on cardiovascular risk factors | Face-to-face interview | A qualitative 1-day record completed at home with help from parents if needed A face-to-face interactive 24-HDR interview was performed on the following day | Differences between the interview data and the record data were discussed with the participant | Estimated Portion size was estimated using pictures of portion sizes |
 IDEFICS SACINA [61] | Children 2–9 years (parents or guardians as proxies) | Determine the aetiology of overweight, obesity and related disorders | Computerised, face-to-face interview Hungary: self-admin. 24-HDR at home | 6 meal occasions | Yes Program mediated | Estimated Photos |