Validation and evaluation of a tablet-based dietary record app for adults aged 70 and above.

ABSTRACT:

Objective

This study aimed at validating the dietary recording functionality of the NuMob-e-App, developed for adults aged 70 and above, against the 24-hour dietary recall reference standard.

Methods

104 independently living adults (mean age 75.8 ± 4.1 years; 58% female) from northwest Germany participated. They recorded their dietary intake on three consecutive days using the App. In parallel, we conducted a structured 24-hour dietary recall via telephone. Nutritional intake was analysed for energy, macronutrients, and food groups defined by the German Nutrition Society. Data were analysed for equivalence using Two One-Sided Tests (TOST), agreement using Intraclass Correlation Coefficients (ICC), and systematic differences using Bland-Altman plots.

Results

Equivalenc

SUBMITTER: Hinrichsen J 

PROVIDER: S-EPMC12646446 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature