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Journal Articles Appetite Year : 2024

Age related impairments in ingestion from a large population based-sample

Marie-Agnès Peyron


Objectives: Epidemiological data regarding the evolution of problems related to mastication and swallowing with age are lacking. This study aims to (i) describe changes in oral function with age, using data from a large French population, (ii) validate online, self-report uses of an ICF questionnaire in older persons, and (iii) assess whether impairment is related to avoidance of certain foods, xerostomia, body mass index (BMI) and oral health related quality of life (OHRQoL). Methods: Volunteers aged ≥18 years with internet access completed a series of questionnaires on sociodemographic, anthropometric and oral health characteristics (oral function, Xerostomia Index (XI), OHRQoL, reasons for avoidance of certain food). Oral function was assessed using items derived from the International Classification of Functioning (ICF). Five ICF items related to ingestion function and six items related to activities and participation were used. A validation study was undertaken to identify those with poor chewing ability and low salivary flow amongst older participants reporting impairment. Findings: 39 597 individuals were included. The prevalence of individuals with impairment for ICF items related to ingestion function and oral activity (eating, drinking and speaking), and the percentage of participants with poor OHRQoL increased significantly with age (p < 0.001). Each ICF item was significantly associated with OHRQoL (p < 0.001), XI (p < 0.001), BMI (p < 0.001) and avoidance of certain food due to chewing or swallowing difficulties. Conclusion: Overall, 21.5% and 13.5% of the study population had chewing and/or biting impairments respectively, which might affect food selection and consumption. These findings raise individual and population-based issues. Further studies are needed to assess whether impairment in oral function might increase frailty in older individuals, and also to compare data with those from other countries.
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licence : CC BY NC ND - Attribution - NonCommercial - NoDerivatives

Dates and versions

hal-04497878 , version 1 (11-03-2024)


Attribution - NonCommercial - NoDerivatives



Martine Hennequin, Nada El Osta, Marie-Laure Munoz-Sanchez, Mathilde Vandenberghe Descamps, Valentina A Andreeva, et al.. Age related impairments in ingestion from a large population based-sample. Appetite, 2024, 196, pp.107287. ⟨10.1016/j.appet.2024.107287⟩. ⟨hal-04497878⟩
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