Relative bias of the App-results.
<div><p>Objective</p><p>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.</p><p>Methods</p><p>104 independently living a...
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2025
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| _version_ | 1849927629510017024 |
|---|---|
| author | Jette Hinrichsen (22683252) |
| author2 | Vincent Quinten (17010107) Rebecca Diekmann (11854008) |
| author2_role | author author |
| author_facet | Jette Hinrichsen (22683252) Vincent Quinten (17010107) Rebecca Diekmann (11854008) |
| author_role | author |
| dc.creator.none.fl_str_mv | Jette Hinrichsen (22683252) Vincent Quinten (17010107) Rebecca Diekmann (11854008) |
| dc.date.none.fl_str_mv | 2025-11-25T18:25:04Z |
| dc.identifier.none.fl_str_mv | 10.1371/journal.pone.0337534.g002 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/figure/Relative_bias_of_the_App-results_/30713433 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biochemistry Neuroscience Biotechnology Evolutionary Biology Developmental Biology Science Policy Infectious Diseases seven food groups selected food groups relatively narrow limits northwest germany participated mean age 75 german nutrition society food groups defined preventive dietary self dietary recording functionality adults aged 70 app &# 8217 44 compared variables dietary intake older adults 44 variables xlink "> study aimed sided tests particularly strong nutritional intake icc variated icc ), findings support achieved across 1 years |
| dc.title.none.fl_str_mv | Relative bias of the App-results. |
| dc.type.none.fl_str_mv | Image Figure info:eu-repo/semantics/publishedVersion image |
| description | <div><p>Objective</p><p>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.</p><p>Methods</p><p>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.</p><p>Results</p><p>Equivalence could be shown in 20 of the 44 compared variables, ICC variated between 0.677 to 0.951 for the four macronutrients and between 0.714 and 0.968 for the seven food groups. The Bland-Altman plots showed tendency to underestimation by the app in most variables and relatively narrow limits of agreement.</p><p>Conclusions</p><p>The NuMob-e-App demonstrated good relative validity for assessing energy, carbohydrate, and protein intake, as well as selected food groups in older adults. While equivalence was not achieved across all 44 variables, agreement was particularly strong for protein and beverages. A general tendency toward intake underestimation by the app was observed. These findings support the app’s potential for use in preventive dietary self-monitoring among seniors.</p></div> |
| eu_rights_str_mv | openAccess |
| id | Manara_2b0169581c80a82726aada1e7dc76f93 |
| identifier_str_mv | 10.1371/journal.pone.0337534.g002 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/30713433 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Relative bias of the App-results.Jette Hinrichsen (22683252)Vincent Quinten (17010107)Rebecca Diekmann (11854008)BiochemistryNeuroscienceBiotechnologyEvolutionary BiologyDevelopmental BiologyScience PolicyInfectious Diseasesseven food groupsselected food groupsrelatively narrow limitsnorthwest germany participatedmean age 75german nutrition societyfood groups definedpreventive dietary selfdietary recording functionalityadults aged 70app &# 821744 compared variablesdietary intakeolder adults44 variablesxlink ">study aimedsided testsparticularly strongnutritional intakeicc variatedicc ),findings supportachieved across1 years<div><p>Objective</p><p>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.</p><p>Methods</p><p>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.</p><p>Results</p><p>Equivalence could be shown in 20 of the 44 compared variables, ICC variated between 0.677 to 0.951 for the four macronutrients and between 0.714 and 0.968 for the seven food groups. The Bland-Altman plots showed tendency to underestimation by the app in most variables and relatively narrow limits of agreement.</p><p>Conclusions</p><p>The NuMob-e-App demonstrated good relative validity for assessing energy, carbohydrate, and protein intake, as well as selected food groups in older adults. While equivalence was not achieved across all 44 variables, agreement was particularly strong for protein and beverages. A general tendency toward intake underestimation by the app was observed. These findings support the app’s potential for use in preventive dietary self-monitoring among seniors.</p></div>2025-11-25T18:25:04ZImageFigureinfo:eu-repo/semantics/publishedVersionimage10.1371/journal.pone.0337534.g002https://figshare.com/articles/figure/Relative_bias_of_the_App-results_/30713433CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/307134332025-11-25T18:25:04Z |
| spellingShingle | Relative bias of the App-results. Jette Hinrichsen (22683252) Biochemistry Neuroscience Biotechnology Evolutionary Biology Developmental Biology Science Policy Infectious Diseases seven food groups selected food groups relatively narrow limits northwest germany participated mean age 75 german nutrition society food groups defined preventive dietary self dietary recording functionality adults aged 70 app &# 8217 44 compared variables dietary intake older adults 44 variables xlink "> study aimed sided tests particularly strong nutritional intake icc variated icc ), findings support achieved across 1 years |
| status_str | publishedVersion |
| title | Relative bias of the App-results. |
| title_full | Relative bias of the App-results. |
| title_fullStr | Relative bias of the App-results. |
| title_full_unstemmed | Relative bias of the App-results. |
| title_short | Relative bias of the App-results. |
| title_sort | Relative bias of the App-results. |
| topic | Biochemistry Neuroscience Biotechnology Evolutionary Biology Developmental Biology Science Policy Infectious Diseases seven food groups selected food groups relatively narrow limits northwest germany participated mean age 75 german nutrition society food groups defined preventive dietary self dietary recording functionality adults aged 70 app &# 8217 44 compared variables dietary intake older adults 44 variables xlink "> study aimed sided tests particularly strong nutritional intake icc variated icc ), findings support achieved across 1 years |