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The Association of Olfactory Function with BMI, Appetite, and Prospective Weight Change in Dutch Community-Dwelling Older Adults

Artikel i vetenskaplig tidskrift
Författare Kristina S. Fluitman
H. J. Nadar
D. S. Roos
H. W. Berendse
B. J. F. Keijser
M. Nieuwdorp
R. G. Ijzerman
M. Visser
Publicerad i Journal of Nutrition Health & Aging
Volym 23
Nummer/häfte 8
Sidor 746-752
ISSN 1279-7707
Publiceringsår 2019
Publicerad vid Wallenberglaboratoriet
Institutionen för kliniska vetenskaper
Sidor 746-752
Språk en
Länkar dx.doi.org/10.1007/s12603-019-1241-...
Ämnesord Olfactory function, BMI, appetite, weight, older adults, smell identification test, impairment, prevalence, dysfunction, taste, undernutrition, university, quality, age, Geriatrics & Gerontology, Nutrition & Dietetics, iences, v68, p1582, iences, v72, p1072
Ämneskategorier Näringslära, Geriatrik, Endokrinologi

Sammanfattning

Objectives: The olfactory decline that often accompanies aging is thought to contribute to undernutrition in older adults. It is believed to negatively affect eating pleasure, appetite, food intake and subsequently nutritional status. We have evaluated the associations of olfactory function with BMI, appetite and prospective weight change in a cohort of Dutch community-dwelling older adults. Design Cross-sectional cohort study. Participants Dutch community-dwelling older adults from the ongoing Longitudinal Aging Study Amsterdam (LASA). Measurements and setting In 2012-2013, the 40-item University of Pennsylvania Smell Identification Test (UPSIT) was administered to 824 LASA participants to evaluate their olfactory function. Body weight, height, appetite, comorbidity, cognitive status and socio-demographic factors were also assessed. Follow-up weight was measured after three years. Results 673 participants (aged 55-65 years) were included in the regression analyses. Median UPSIT-score was 33. When adjusted for potential confounders, lower UPSIT-score (indicative of poorer olfactory function) was not associated with poor appetite (OR = 1.062, p = 0.137) or prospective weight change (B = -0.027, p = 0.548). It was, however, associated with lower BMI in smokers (B = 0.178, p = 0.032), but not in non-smokers (B = -0.015, p = 0.732). Conclusion Lower olfactory function scores were associated with lower BMI in community-dwelling older adults who smoke, but not with appetite or prospective weight change. Therefore, smoking older adults with olfactory impairments may pose as a vulnerable group with respect to developing undernutrition.

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