Relative validity of interviewer-administered 24-hour recalls collected by telephone and in-person compared with weighed food records among rural Sri Lankan adults

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cg.authorship.typesCGIAR single centre
cg.authorship.typesCGIAR and developing country institute
cg.authorship.typesCGIAR and advanced research institute
cg.contributor.affiliationUniversity of California
cg.contributor.affiliationWayamba University of Sri Lanka
cg.contributor.affiliationUnited States Department of Agriculture
cg.contributor.affiliationInternational Food Policy Research Institute
cg.contributor.donorCGIAR Trust Fund
cg.contributor.initiativeFruit and Vegetables for Sustainable Healthy Diets
cg.contributor.initiativeResilient Cities
cg.contributor.programAcceleratorBetter Diets and Nutrition
cg.coverage.countrySri Lanka
cg.coverage.regionAsia
cg.coverage.regionSouthern Asia
cg.creator.identifierAmy Margolies: 0000-0003-3194-5632
cg.creator.identifierDeanna Olney: 0000-0002-2420-8565
cg.creator.identifierAulo Gelli: 0000-0003-4977-2549
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.cdnut.2026.107672
cg.identifier.projectIFPRI - Nutrition, Diets, and Health Unit
cg.identifier.projectIFPRI - Poverty, Gender, and Inclusion Unit
cg.identifier.publicationRankB
cg.isijournalISI Journal
cg.issn2475-2991
cg.issue4
cg.journalCurrent Developments in Nutrition
cg.reviewStatusPeer Review
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactAreaPoverty reduction, livelihoods and jobs
cg.volume10
dc.contributor.authorJoyce, Caroline A.
dc.contributor.authorStewart, Christine P.
dc.contributor.authorArnold, Charles D.
dc.contributor.authorSitisekara, Hasara
dc.contributor.authorCaswell, Bess L.
dc.contributor.authorHess, Sonja Y.
dc.contributor.authorMargolies, Amy
dc.contributor.authorRanatunga, Thilanka
dc.contributor.authorPerera, Thushanthi
dc.contributor.authorOlney, Deanna K.
dc.contributor.authorSilva, Renuka
dc.contributor.authorGelli, Aulo
dc.date.accessioned2026-04-01T20:31:24Z
dc.identifier.urihttps://hdl.handle.net/10568/182353
dc.titleRelative validity of interviewer-administered 24-hour recalls collected by telephone and in-person compared with weighed food records among rural Sri Lankan adultsen
dcterms.abstractBackground Quantitative dietary assessment is hindered by cost, time, and logistical burdens. Collecting 24-hour recall (24HR) dietary data by phone may be particularly advantageous in rural areas. Objectives To assess the criterion and relative validity and costs of phone compared with in-person 24HR compared with observed weighed food records (WFR), a reference measure for true intake. Methods We used a randomized crossover design to collect phone and in-person 24HRs from 103 rural Sri Lankan adults, each matched to a WFR collected on the reference day. Agreement was assessed using equivalence testing with 15% error bounds and concordance correlation coefficients. Memory and portion size estimation errors were examined using descriptive statistics. Activity-based costing was used to estimate 24HR costs using expenditures and micro-costing. Results Compared with WFR, respondents underreported energy intake by 263 kcal (12.6%) in phone 24HR and 229 kcal (10.9%) in in-person 24HR, primarily due to portion size misestimation. Mean intakes of protein and 6 micronutrients were equivalent between phone 24HR and WFR. Although no nutrients were equivalent for in-person recalls, the 2 recall methods had relative equivalence for energy, carbohydrates, fat, zinc, and niacin. The average concordance correlation coefficient was slightly higher for phone recalls, whereas memory error was lower for in-person recalls. Costs per respondent were $254 for in-person 24HR and $186 for phone 24HR in a most likely implementation scenario. Conclusions Among rural Sri Lankan adults, phone-based 24HR were comparable to in-person 24HR in estimating nutrient intakes, although both methods underestimated true intakes. Phone-based recalls were less expensive and performed at least as accurately as those collected in-person.en
dcterms.accessRightsOpen Access
dcterms.audienceAcademics
dcterms.available2026-03-12
dcterms.bibliographicCitationJoyce, Caroline A.; Stewart, Christine P.; Arnold, Charles D.; Sitisekara, Hasara; Caswell, Bess L.; et al. 2026. Relative validity of interviewer-administered 24-hour recalls collected by telephone and in-person compared with weighed food records among rural Sri Lankan adults. Current Developments in Nutrition 10(4): 107672. https://doi.org/10.1016/j.cdnut.2026.107672
dcterms.extent107672
dcterms.issued2026-04
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherElsevier
dcterms.subjectsurveys
dcterms.subjectdietary assessment
dcterms.subjectcost analysis
dcterms.subjectrural areas
dcterms.subjectsurvey methods
dcterms.subjectnutrient intake
dcterms.typeJournal Article

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