Computerized dietary assessments compare well with interviewer administered diet histories for patients with type 2 diabetes mellitus in the primary healthcare setting

Abstract

Computerized dietary assessments compare well with interviewer administered diet histories for patients with type 2 diabetes mellitus in the primary healthcare setting, Patient Education and Counseling, 72(1), 2008, 49-55. Copyright Elsevier 2008. Computerized dietary assessments compare well with interviewer administered diet histories for patients with type 2 diabetes mellitus in the primary healthcare setting AbstractUsing a context-based case-control trial, 41 adults with type 2 diabetes mellitus were randomized into four groups to complete dietary assessments (computerized or interviewer administered) at 0, 2 and 8 weeks and food records at 0 and 2 weeks. Repeatability of reported energy, total fat, saturated, polyunsaturated and monounsaturated fatty acids between the computerized and interviewer administered methods were assessed using repeated measures ANOVA. Paired t-tests and Pearson's correlations determined relative validity of the assessments. Methods: Using a context based case-control trial, forty-one adults with type 2 diabetes mellitus were randomized into four groups to complete dietary assessments (computerized or interviewer administered) at zero, two and eight weeks and food records at zero and two weeks. Repeatability of reported energy, total fat, saturated, polyunsaturated and monounsaturated fatty acids between the computerized and interviewer administered methods were assessed using repeated measures ANOVA. Paired t-tests and Pearson's correlations determined relative validity of the assessments.Results: Thirty-one patients completed all visits. Statistically significant differences were found between computerized and interviewer administered data for total fat (p=0.048) and saturated fatty acids (p=0.019) between zero and two weeks. Computerized assessments correlated better with food records (r=0.16-0.52) compared with interviewer administered assessments (r=-0.02-0.51). Conclusion:Computerized assessments saw a learning effect with repeated use indicating that users were becoming more familiar with the website with repeated use. Relative validity suggests that the website may capture more foods though this requires further investigation.Practice Implications: By allowing patients to self-report their intakes on a computer, dietitians will have the ability to spend increased time with their patients counseling them toward change.

Technology-based methods of dietary assessment: recent developments and considerations for clinical practice

“…)- [12]. Similar results were obtained in patients with type 2 diabetes who reported higher intake for most nutrients using a web-based automated dietary assessment than an interviewer-assisted 24 h recall [13]. The results from the web-based assessment also correlated better with a foodrecord than the interviewer-assisted assessment.…”

General principles for the collection of national food consumption data in the view of a pan-European dietary survey

“…In the literature there are many studies (Kohlmeier et al, 1997;Bakker et al, 2003;Slattery et al, 2008;Probst & Tapsell, 2007;Probst et al, 2008) that have examined the use of computer software to assist in the dietary interview (see section 5.2 of this document). In the literature there are many studies (Kohlmeier et al, 1997;Bakker et al, 2003;Slattery et al, 2008;Probst & Tapsell, 2007;Probst et al, 2008) that have examined the use of computer software to assist in the dietary interview (see section 5.2 of this document).…”

Accuracy and reliability of self-reported weight and height in the Sister Study

“…Fewer studies have assessed reliability of self-reported measures and results were inconsistent (14, 15) .…”