Estimation accuracy of bean bags as portion size estimation aids for amorphous foods.
Objective: A study was undertaken to explore the portion size estimation accuracy of bean bags as low-cost volumetric portion size estimation aids for amorphous foods. Designs: Three observational, cross-sectional and three experimental/quasi-experimental developmental evaluation sub-studies were ca...
| Publicado en: | South African Journal of Clinical Nutrition Vol. 37; no. 3; pp. 106 - 116 |
|---|---|
| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Sep2024
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=180115930&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 180115930 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 16070658 39WI jtl: South African Journal of Clinical Nutrition issn: 16070658 maglogo: N pubinfo: dt: Sep2024 vid: 37 iid: 3 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 180115930 176778213 180115930 180115930 10.1080/16070658.2024.2336290 180115930 ppf: 106 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Estimation accuracy of bean bags as portion size estimation aids for amorphous foods. aug: au: Wenhold, Friedeburg Anna Maria MacIntyre, Una Elizabeth affil: Department of Human Nutrition, University of Pretoria, Pretoria, South Africa sug: subj: Portion Size Evaluation Portion Size Equipment and Supplies Equipment and Supplies Economics Food Equipment Reliability Evaluation Nutritional Assessment Methods Nutritional Assessment Equipment and Supplies Human Male Female Adolescence Young Adult Adult Middle Age Aged Aged, 80 and Over Nonexperimental Studies Cross Sectional Studies Experimental Studies Quasi-Experimental Studies Colleges and Universities South Africa South Africa Descriptive Statistics Students, College Test-Retest Reliability Reproducibility of Results Cost Effectiveness Analysis Resource-Limited Settings Retirement Housing for Older Persons Teachers Schools, Middle Schools, Secondary Students, Middle School Students, High School Adolescent: 13-18 years Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: Objective: A study was undertaken to explore the portion size estimation accuracy of bean bags as low-cost volumetric portion size estimation aids for amorphous foods. Designs: Three observational, cross-sectional and three experimental/quasi-experimental developmental evaluation sub-studies were carried out. Settings: Observational, cross-sectional: one retirement village and four schools. Experimental/quasi-experimental: one South African university. Participants: Observational, cross-sectional: elderly persons, adult women (school educators), schoolchildren. Experimental/quasi-experimental: university students. In total N = 541; > 3 800 observations. Variables measured: Using a standardised set of bean bags (test object; volume range: 60–625 ml), volumes of different amorphous foods (reference objects: actual foods or representations) in varying portion sizes had to be estimated. Accuracy (outcome measure) was perfect if volumes of test and reference object were identical. Acceptable estimation accuracy allowed for misestimation by one bean bag size. Test–retest reproducibility was also assessed. Analysis: Descriptive statistics (proportions perfect and acceptable accuracy). Results: Across the sub-studies, perfect accuracy ranged from 22–65% depending on participants, reference food and portion size. Irrespective thereof, acceptable accuracy was noted in > 70% of observations. Reproducibility varied (range: 28–67% agreement). Conclusions and implications: Perfect portion size estimation of amorphous foods remains challenging. When misestimation by 60–125 ml still serves the purpose of a dietary assessment, bean bags show promise for cost-effective food volume quantification, especially on group level in resource-limited settings. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|