To delay impacts of aging, optimal nutritional status is essential. Several factors can reduce food intake, such as isolation, income, and cognitive/physical decline. Additionally, chewing and swallowing difficulties, or dysphagia, often disrupt the ability to consume life-long favorite dishes. Food and liquids could require modification of texture or consistency to ensure a comfortable or safe swallow. The food industry, foodservices facilities, and caregivers need quality control benchmarks to provide adequate nourishment and meet these new feeding challenges. The International Dysphagia Diet Standardisation Initiative (IDDSI) is proposing the IDDSI framework and testing methods to describe food used in nutritional care plans to circumvent dysphagia and improve communication among caregivers. This systematic review assesses the validity and reliability of the IDDSI testing methods using the Consensus-based Standards for the selection of health Measurement Instruments (COSMIN). Two publications presented content validity whereas 19 publications looked at construct validity or reliability for the IDDSI testing methods. One study was conducted in older adults presenting dysphagia. This review concludes that there is insufficient evidence to recommend the IDDSI testing methods. Further research, conducted with robust methodological design and reporting, is needed to develop and assess nutritious adapted food for frail older populations.
L’International Dysphagia Diet Standardisation Initiative (IDDSI) propose un cadre de référence assorti de méthodes d’évaluation pour la catégorisation et la mesure des aliments et breuvages pour les patients dysphagiques afin de faciliter la comparaison d’études scientifiques internationales et améliorer le traitement de la dysphagie des nouveau-nés aux adultes âgés. La documentation des qualités métrologiques de ces outils est essentielle. Il s’agit d’un prérequis à une pratique clinique basée sur les données probantes.
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