Association between weight-adjusted waist index and cognitive impairment in Chinese older men: a 7-year longitudinal study.

IF 4.1 2区医学 Q2 GERIATRICS & GERONTOLOGY Frontiers in Aging Neuroscience Pub Date : 2025-01-21 eCollection Date: 2025-01-01 DOI:10.3389/fnagi.2025.1510781

Jie Lin, Hongchen Shen, Wenjuan Yang, Guojun Zhang, Jie Sun, Wenqin Shen, Li Huang, Huajian Chen

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Abstract

Background: Obesity, through mechanisms such as insulin resistance and systemic low-grade inflammation, can damage the central nervous system and impair cognitive function. Weight-adjusted waist index (WWI) is a novel measure of obesity that may offer more precise assessments of muscle and fat mass. This study aims to investigate the association between WWI and cognitive function in older Chinese men.

Methods: Data from the 2011-2018 China Longitudinal Health and Longevity Survey (CLHLS) were used in this study. WWI and cognitive function were examined in both linear and non-linear situations using Kaplan-Meier survival curves, multivariate Cox regression models, and restricted cubic spline (RCS) regression.

Results: This study included 1,392 older Chinese men aged 65 years and over for whom complete data were available. After controlling for all potential confounding variables, our analysis showed a statistically significant positive association between WWI and cognitive decline. Specifically, for every 1 cm/√kg increase in WWI, the risk of cognitive impairment increased by 17% (HR = 1.17, 95% CI: 1.02-1.35). Using 11.52 cm/√kg as the cutoff point for WWI, we found that High WWI was associated with a 44% increased risk of cognitive impairment compared with Low WWI (HR = 1.44, 95% CI: 1.07-1.96). RCS regression analysis confirmed a linear positive correlation between WWI and cognitive impairment.

Conclusion: Higher WWI is linked to worse cognitive performance in older Chinese men.

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来源期刊

Frontiers in Aging Neuroscience GERIATRICS & GERONTOLOGY-NEUROSCIENCES

CiteScore

6.30

自引率

8.30%

发文量

1426

期刊介绍： Frontiers in Aging Neuroscience is a leading journal in its field, publishing rigorously peer-reviewed research that advances our understanding of the mechanisms of Central Nervous System aging and age-related neural diseases. Specialty Chief Editor Thomas Wisniewski at the New York University School of Medicine is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, clinicians and the public worldwide.