PMID- 35907508 OWN - NLM STAT- MEDLINE DCOM- 20220908 LR - 20220908 IS - 1872-8227 (Electronic) IS - 0168-8227 (Linking) VI - 190 DP - 2022 Aug TI - Body weight variability and the risk of dementia in patients with type 2 diabetes mellitus: A nationwide cohort study in Korea. PG - 110015 LID - S0168-8227(22)00829-4 [pii] LID - 10.1016/j.diabres.2022.110015 [doi] AB - AIMS: This study aimed to examine the association between body weight variability and dementia risk using a large-scale cohort data of Korean patients with type 2 diabetes mellitus (T2DM). METHODS: A population-based cohort of 1,206,764 individuals with T2DM aged >/= 40 years who underwent >/= 3 Korean national health screenings were followed up until the end of 2019. Body weight variability was assessed using variability independent of the mean (VIM). A multivariate Cox proportional hazard regression was performed with calculating hazard ratios (HRs) with 95 % confidence intervals (CIs) of dementia incidence. RESULTS: During a median follow-up of 7.9 years, 162,615 (13.4 %) individuals developed dementia. Individuals with greater body weight variability tended to be associated with higher risk of all types of dementia (P for trend < 0.001). Individuals in the highest quartile of VIM showed 26 % (HR: 1.26, 95 % CI: 1.24-1.28), 33 % (HR: 1.33, 95 % CI: 1.30-1.36) and 28 % (HR: 1.28, 95 % CI: 1.23-1.33) higher risk for all-cause dementia, Alzheimer's disease, and vascular dementia, compared with those in the lowest quartile. These associations persisted in all body mass index categories (P for trend < 0.001). CONCLUSIONS: Maintaining an appropriate body weight may help mitigate dementia risk in patients with T2DM. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Park, Kye-Yeung AU - Park KY AD - Department of Family Medicine, Hanyang University College of Medicine, Seoul, South Korea. Electronic address: kyeyeung@naver.com. FAU - Nam, Ga Eun AU - Nam GE AD - Department of Family Medicine, Korea University College of Medicine, Seoul, South Korea. Electronic address: namgaaa@daum.net. FAU - Han, Kyungdo AU - Han K AD - Department of Statistics and Actuarial Science, Soongsil University, Seoul, South Korea. Electronic address: hkd917@naver.com. FAU - Hwang, Hwan-Sik AU - Hwang HS AD - Department of Family Medicine, Hanyang University College of Medicine, Seoul, South Korea. Electronic address: fmhwang@hanyang.ac.kr. LA - eng PT - Journal Article DEP - 20220728 PL - Ireland TA - Diabetes Res Clin Pract JT - Diabetes research and clinical practice JID - 8508335 SB - IM MH - *Alzheimer Disease MH - Body Weight MH - Cohort Studies MH - *Diabetes Mellitus, Type 2/complications/epidemiology MH - Humans MH - Incidence MH - Republic of Korea/epidemiology MH - Risk Factors OTO - NOTNLM OT - Body weight OT - Body weight variability OT - Cohort study OT - Dementia OT - Type 2 diabetes mellitus COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/07/31 06:00 MHDA- 2022/09/09 06:00 CRDT- 2022/07/30 19:22 PHST- 2022/03/01 00:00 [received] PHST- 2022/07/08 00:00 [revised] PHST- 2022/07/18 00:00 [accepted] PHST- 2022/07/31 06:00 [pubmed] PHST- 2022/09/09 06:00 [medline] PHST- 2022/07/30 19:22 [entrez] AID - S0168-8227(22)00829-4 [pii] AID - 10.1016/j.diabres.2022.110015 [doi] PST - ppublish SO - Diabetes Res Clin Pract. 2022 Aug;190:110015. doi: 10.1016/j.diabres.2022.110015. Epub 2022 Jul 28.