Validation of a Diet Quality Screening Tool for Use in the Oldest Old *

Yi Hsuan Liu, Xiang Gao, Diane C. Mitchell, G. Craig Wood, Regan K. Bailey, Christopher D. Still, Gordon L. Jensen

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Abstract

The oldest old (aged ≥80 years) are often the population subgroup at high nutritional risk due to age-related metabolic changes. We performed a validation analysis of a dietary screening tool (DST) which was developed for older adults among the oldest old. We examined dietary intakes using three 24-hour dietary recalls and the DST among 122 participants (aged 82–97) of the Geisinger Rural Aging Study. DST scores were compared with the Health Eating Index (HEI)-2015 scores, which were calculated based on three-day dietary recalls. Pearson correlations were used to characterize concurrent validity and Bland-Altman plots were used to identify potential bias. DST scores were significantly correlated with HEI scores (adjusted r = 0.68; p < 0.001) in an age- and sex-adjusted model. Those within the not-at-risk DST group had significantly higher HEI scores (adjusted means = 79.6 ± 3.68) compared with those who were in the at-risk (adjusted means = 51.2 ± 1.56) and the possibly-at-risk (adjusted means = 66.3 ± 1.79) groups (p-trend < 0.001). The DST appears to be a valid measure of diet quality in the oldest old when compared with the HEI and may be a potential tool to assess overall diet quality in this population.

Original languageEnglish (US)
JournalJournal of Nutrition in Gerontology and Geriatrics
DOIs
StatePublished - Jan 1 2019

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All Science Journal Classification (ASJC) codes

  • Nutrition and Dietetics
  • Geriatrics and Gerontology

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