Briefly describe the guidelines to be followed while conducting a diet survey using 24 hours recall method
Answers
The 24-hour diet recall relies on a trained interviewer, an accurate memory of intake, an ability to estimate portion size, and the interviewee's reliability to not misreport. This method can be administered by telephone, is suitable for large surveys, and has a low burden for respondents.[2] In the interview, participants are asked to describe the foods and drinks they have consumed in the previous 24 hours; the participant then might be asked to provide more detail than what was initially provided. The open-ended nature of the interview is intended to help produce the most detailed description of foods and drinks consumed over the previous 24 hours. Details might include time of day, source of food, and portion size of food. A 24-hour diet recall is typically completed in 20–60 minutes.[3] The 24-hour diet recall is most accurate when administered more than once for each individual.[1]
24-hour diet recall is more interactive than other techniques and so provides a way for the interviewer and interviewee to interact during the recall. The interviewer may use various props, such as a deck of cards, to indicate a weight amount for the foods and drinks consumed; however, the props might not be appropriate in cross-cultural settings. The interviewer might also use different techniques to jog memory including working chronologically, or asking the interviewee to recall all of their activities during the previous day, or asking other probing questions in an effort to make sure the interviewee remembers as much as possible.[1] The interviewer might ask the respondent to remember eating and drinking by time period or linking them to day time activities.