The validation of the dairy intake in higher income South African adults

Paper-based dietary assessment tools such as food frequency questionnaires (FFQs) and especially dietary screeners are making way for versions that use technology. Amidst low intakes of dairy and dairy-related nutrients in South Africa and to increase public awareness thereof, this research aimed to develop and evaluate the usability of an application (app), namely the Dairy Diary, to screen for dairy intake in higher income South African adults (Phase 1) Thereafter, the screener was evaluated in terms of test-retest reliability and comparative validity (Phase 2)

In a diagnostic accuracy study, undergraduate dietetics/nutrition student volunteers from three South African universities completed three non-consecutive days of weighed food records (reference standard) within a seven-day period (comparative validity), followed by two administrations, two weeks apart, of the screener (index test) (reliability).

1. The food records (phase 2) submitted by the student participants are attached.
2. The Code Book for phase 1 and phase 2 of the study are attached.
3. The Data Set for phase 1 and phase 2 of the study are attached.