Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study

Abstract Background The waist-calf circumference ratio (WCR) has been suggested as a potential indicator of visceral adiposity. Nevertheless, the relationship between WCR and the risk of frailty remains unclear. Therefore, our study aimed to investigate the association between WCR and longitudinal c...

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Main Authors: Miao Dai, Quhong Song, Jirong Yue, Taiping Lin, Wei Jie, Xiang Wang, Ning Ge
Format: Article
Language:English
Published: BMC 2023-08-01
Series:BMC Geriatrics
Subjects:
Online Access:https://doi.org/10.1186/s12877-023-04182-9
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author Miao Dai
Quhong Song
Jirong Yue
Taiping Lin
Wei Jie
Xiang Wang
Ning Ge
author_facet Miao Dai
Quhong Song
Jirong Yue
Taiping Lin
Wei Jie
Xiang Wang
Ning Ge
author_sort Miao Dai
collection DOAJ
description Abstract Background The waist-calf circumference ratio (WCR) has been suggested as a potential indicator of visceral adiposity. Nevertheless, the relationship between WCR and the risk of frailty remains unclear. Therefore, our study aimed to investigate the association between WCR and longitudinal changes in WCR with frailty risk in older adults. Methods We included 2359 participants aged ≥ 65 years without frailty (frailty index [FI] ≤ 0.21) from the Chinese Longitudinal Healthy Longevity Survey in the 2014 wave. The follow-up was conducted in 2018. We investigated the relationship of WCR, waist circumference (WC), and calf circumference (CC) with frailty using both the Cox proportional hazards model and the generalized estimating equation (GEE). Results During a median follow-up of 4.0 years, 668 (28.2%) frailty occurred. Those with higher WCR and WC had a significantly increased risk of frailty (fifth quintile compared with first quintile: hazard ratio [HR] = 1.59, 95% confidence interval [CI] 1.24–2.04 for WCR; HR = 1.69, 95% CI 1.27–2.24 for WC), whereas those in the fourth quintile of CC had a lower likelihood of developing frailty compared to those in the first quintile (HR = 0.67, 95% CI 0.50–0.89). Interaction analyses showed that the effects of WCR on frailty were more pronounced in females (P-interaction = 0.016). GEE analyses revealed that increased WCR and WC were associated with a higher risk of frailty (odds ratio [OR] = 1.74, 95% CI 1.43–2.12 for WCR; OR = 1.03, 95% CI 1.02–1.04 for WC), while CC showed opposite results (OR = 0.95, 95% CI 0.93–0.97). Conclusions A higher WCR and WC, as well as a lower CC, were significantly associated with higher frailty. Of these measures, WCR demonstrated the strongest association with frailty, suggesting that having a combination of high central fat and low lean body mass may increase the risk of developing frailty.
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spelling doaj.art-8ed4555bcae64c8897a7385f3d12e17f2023-11-26T14:10:08ZengBMCBMC Geriatrics1471-23182023-08-012311910.1186/s12877-023-04182-9Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort studyMiao Dai0Quhong Song1Jirong Yue2Taiping Lin3Wei Jie4Xiang Wang5Ning Ge6Department of Geriatrics, Jiujiang First People’s HospitalDepartment of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan UniversityDepartment of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan UniversityDepartment of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan UniversityDepartment of Geriatrics, Jiujiang First People’s HospitalDepartment of Cardiology, Jiujiang First People’s HospitalDepartment of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan UniversityAbstract Background The waist-calf circumference ratio (WCR) has been suggested as a potential indicator of visceral adiposity. Nevertheless, the relationship between WCR and the risk of frailty remains unclear. Therefore, our study aimed to investigate the association between WCR and longitudinal changes in WCR with frailty risk in older adults. Methods We included 2359 participants aged ≥ 65 years without frailty (frailty index [FI] ≤ 0.21) from the Chinese Longitudinal Healthy Longevity Survey in the 2014 wave. The follow-up was conducted in 2018. We investigated the relationship of WCR, waist circumference (WC), and calf circumference (CC) with frailty using both the Cox proportional hazards model and the generalized estimating equation (GEE). Results During a median follow-up of 4.0 years, 668 (28.2%) frailty occurred. Those with higher WCR and WC had a significantly increased risk of frailty (fifth quintile compared with first quintile: hazard ratio [HR] = 1.59, 95% confidence interval [CI] 1.24–2.04 for WCR; HR = 1.69, 95% CI 1.27–2.24 for WC), whereas those in the fourth quintile of CC had a lower likelihood of developing frailty compared to those in the first quintile (HR = 0.67, 95% CI 0.50–0.89). Interaction analyses showed that the effects of WCR on frailty were more pronounced in females (P-interaction = 0.016). GEE analyses revealed that increased WCR and WC were associated with a higher risk of frailty (odds ratio [OR] = 1.74, 95% CI 1.43–2.12 for WCR; OR = 1.03, 95% CI 1.02–1.04 for WC), while CC showed opposite results (OR = 0.95, 95% CI 0.93–0.97). Conclusions A higher WCR and WC, as well as a lower CC, were significantly associated with higher frailty. Of these measures, WCR demonstrated the strongest association with frailty, suggesting that having a combination of high central fat and low lean body mass may increase the risk of developing frailty.https://doi.org/10.1186/s12877-023-04182-9Waist-calf circumference ratioWaist circumferenceCalf circumferenceFrailtyOlder adult
spellingShingle Miao Dai
Quhong Song
Jirong Yue
Taiping Lin
Wei Jie
Xiang Wang
Ning Ge
Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study
BMC Geriatrics
Waist-calf circumference ratio
Waist circumference
Calf circumference
Frailty
Older adult
title Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study
title_full Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study
title_fullStr Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study
title_full_unstemmed Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study
title_short Is waist-calf circumference ratio associated with frailty in older adults? Findings from a cohort study
title_sort is waist calf circumference ratio associated with frailty in older adults findings from a cohort study
topic Waist-calf circumference ratio
Waist circumference
Calf circumference
Frailty
Older adult
url https://doi.org/10.1186/s12877-023-04182-9
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