PMID- 33665348 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240330 IS - 2352-8729 (Print) IS - 2352-8729 (Electronic) IS - 2352-8729 (Linking) VI - 13 IP - 1 DP - 2021 TI - Body weight changes and longitudinal associations with cognitive decline among community-dwelling older adults. PG - e12163 LID - 10.1002/dad2.12163 [doi] LID - e12163 AB - INTRODUCTION: We aim to investigate the longitudinal associations between changes in body weight (BW) and declines in cognitive function and risk of mild cognitive impairment (MCI)/dementia among cognitively normal individuals 65 years or older. METHODS: Data from the Age Gene/Environment Susceptibility-Reykjavik Study (AGES-Reykjavik Study) including 2620 participants, were examined using multiple logistic regression models. Cognitive function included speed of processing (SP), executive function (EF), and memory function (MF). Changes in BW were classified as; weight loss (WL), weight gain (WG), and stable weight (SW). RESULTS: Mean follow-up time was 5.2 years and 61.3% were stable weight. Participants who experienced WL (13.4%) were significantly more likely to have declines in MF and SP compared to the SW group. Weight changes were not associated with EF. WL was associated with a higher risk of MCI, while WG (25.3%) was associated with a higher dementia risk, when compared to SW. DISCUSSION: Significant BW changes in older adulthood may indicate impending changes in cognitive function. CI - (c) 2021 The Authors. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring published by Wiley Periodicals, LLC on behalf of Alzheimer's Association. FAU - Eymundsdottir, Hrafnhildur AU - Eymundsdottir H AD - Food Science and Nutrition University of Iceland Reykjavik Iceland. AD - The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland. FAU - Ramel, Alfons AU - Ramel A AD - Food Science and Nutrition University of Iceland Reykjavik Iceland. AD - The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland. FAU - Geirsdottir, Olof G AU - Geirsdottir OG AD - Food Science and Nutrition University of Iceland Reykjavik Iceland. AD - The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland. FAU - Skuladottir, Sigrun S AU - Skuladottir SS AD - Food Science and Nutrition University of Iceland Reykjavik Iceland. AD - The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland. FAU - Gudmundsson, Larus S AU - Gudmundsson LS AD - Pharmaceutical Sciences School of Health Sciences University of Iceland Iceland. FAU - Jonsson, Palmi V AU - Jonsson PV AD - The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland. AD - Medicine University of Iceland Reykjavik Iceland. AD - Department of Geriatrics the National University Hospital of Iceland Reykjavik Iceland. FAU - Gudnason, Vilmundur AU - Gudnason V AD - Medicine University of Iceland Reykjavik Iceland. AD - Icelandic Heart Association Kopavogur Iceland. FAU - Launer, Lenore AU - Launer L AD - Laboratory of Epidemiology and Population Sciences National Institute on Aging National Institutes of Health Bethesda Maryland USA. FAU - Jonsdottir, Maria K AU - Jonsdottir MK AD - Department of Psychology Reykjavik University Reykjavik Iceland. AD - Mental Health Services Landspitali-The National University Hospital of Iceland Iceland. FAU - Chang, Milan AU - Chang M AD - The Icelandic Gerontological Research Center the National University Hospital of Iceland Reykjavik Iceland. AD - Health Promotion Sport, and Leisure Studies School of Education University of Iceland Reykjavik Iceland. LA - eng PT - Journal Article DEP - 20210220 PL - United States TA - Alzheimers Dement (Amst) JT - Alzheimer's & dementia (Amsterdam, Netherlands) JID - 101654604 PMC - PMC7896555 OTO - NOTNLM OT - APOE epsilon4 OT - body weight changes OT - cognitive function OT - dementia OT - executive function OT - memory function OT - mild cognitive impairment OT - nutrition OT - speed of processing COIS- The authors declare no conflicts of interest. EDAT- 2021/03/06 06:00 MHDA- 2021/03/06 06:01 PMCR- 2021/02/20 CRDT- 2021/03/05 06:08 PHST- 2021/01/07 00:00 [received] PHST- 2021/01/21 00:00 [revised] PHST- 2021/01/26 00:00 [accepted] PHST- 2021/03/05 06:08 [entrez] PHST- 2021/03/06 06:00 [pubmed] PHST- 2021/03/06 06:01 [medline] PHST- 2021/02/20 00:00 [pmc-release] AID - DAD212163 [pii] AID - 10.1002/dad2.12163 [doi] PST - epublish SO - Alzheimers Dement (Amst). 2021 Feb 20;13(1):e12163. doi: 10.1002/dad2.12163. eCollection 2021.