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Diet quality indices and their associations with health-related outcomes in children and adolescents: An updated systematic review

  • Phoebe Dalwood
  • , Skye Marshall
  • , Tracy Burrows
  • , Ashleigh McIntosh
  • , Clare E. Collins

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

Background
To describe a-priori diet quality indices used in children and adolescents, appraise the validity and reliability of these indices, and synthesise evidence on the relationship between diet quality and physical and mental health, and growth-related outcomes.

Methods
Five electronic databases were searched until January 2019. An a-priori diet quality index was included if it applied a scoring structure to rate child or adolescent (aged 0–18-years) dietary intakes relative to dietary or nutrient guidelines. Diagnostic accuracy studies and prospective cohort studies reporting health outcomes were appraised using the Academy of Nutrition and Dietetics Quality Criteria Checklist.

Results
From 15,577 records screened, 128 unique paediatric diet quality indices were identified from 33 countries. Half of the indices’ scores rated both food and nutrient intakes (n = 65 indices). Some indices were age specific: infant (< 24-months; n = 8 indices), child (2–12-years; n = 16), adolescent (13–18 years; n = 8), and child/adolescent (n = 14). Thirty-seven indices evaluated for validity and/or reliability. Eleven of the 15 indices which investigated associations with prospective health outcomes reported significant results, such as improved IQ, quality of life, blood pressure, body composition, and prevalence of metabolic syndrome.

Conclusions
Research utilising diet quality indices in paediatric populations is rapidly expanding internationally. However, few indices have been evaluated for validity, reliability, or association with health outcomes. Further research is needed to determine the validity, reliability, and association with health of frequently utilised diet quality indices to ensure data generated by an index is useful, applicable, and relevant.
Original languageEnglish
Article number118
Number of pages43
JournalNutrition Journal
Volume19
DOIs
Publication statusPublished - 24 Oct 2020

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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  • Public health nutrition research

    Reidlinger, D. (Project Lead), Cox, G. (Associate Investigator), Marshall, S. (Associate Investigator), MacKenzie-Shalders, K. (Associate Investigator), Patterson, P. (Associate Investigator), Campbell, K. (Associate Investigator), Van Herwerden, L. (Assistant Professor), Utter, J. (Associate Professor), Mayr, H. (Associate Investigator), Van der Meij, B. (Associate Investigator), Kelly, J. (Associate Investigator), Maugeri, B. (Assistant Professor), Marx, W. (Associate Investigator), Turner, C. (Partner Investigator) & Tang, X. (Associate Investigator)

    1/01/1431/01/29

    Project: Research

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