Relationship between Central Obesity and the incidence of Cognitive Impairment and Dementia from Cohort Studies Involving 5,060,687 Participants

X.Y. Tang, W. Zhao, M. Lu, X. Zhang, P. Zhang, Z. Xin, R. Sun, W. Tian, M.A. Cardoso, J.K. Yang, R. Sim, J.B. Zhou*, C.D.A. Stehouwer

*Corresponding author for this work

Research output: Contribution to journal(Systematic) Review article peer-review

2 Citations (Web of Science)

Abstract

Central obesity, measured by the waist circumference (WC) or waist-to-hip ratio, has been linked with metabolic dysfunction and structural abnormalities in the brain, two risk factors for cognitive impairment and dementia. The current analysis was performed to understand the influence of central obesity on the incidence of cognitive impairment and dementia. It included 21 studies involving 5,060,687 participants and showed that a high WC was associated with a greater risk of cognitive impairment and dementia (HR = 1.10, 95 % CI: 1.05-1.15), compared with a low WC. Sub-group analysis showed that a high WC increased the likelihood of developing cognitive impairment and dementia in individuals older than 65 years of age (HR = 1.13, 95 % CI: 1.08-1.19), whereas no association was observed in individuals younger than 65 years of age (HR = 1.04, 95 % CI: 0.93-1.16). Furthermore, dose-response meta-analysis confirmed that a high WC was a risk factor for cognitive impairment and dementia. In conclusion, central obesity, as measured by WC, was associated with a risk of cognitive impairment and dementia.
Original languageEnglish
Pages (from-to)301-313
Number of pages13
JournalNeuroscience and Biobehavioral Reviews
Volume130
DOIs
Publication statusPublished - 1 Nov 2021

Keywords

  • Central obesity
  • Cognitive impairment
  • Dementia
  • BODY-MASS INDEX
  • METABOLIC SYNDROME
  • ALZHEIMERS-DISEASE
  • WAIST CIRCUMFERENCE
  • VASCULAR DEMENTIA
  • FOLLOW-UP
  • LATE-LIFE
  • RISK
  • ADIPOSITY
  • FAT

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