ArticleFrontiers in nutrition2026
Associations of changes in waist-to-height ratio with all-cause mortality among Chinese older adults: a national cohort study.
Article in Frontiers in nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Waist-to-height ratio, as an anthropometric indicator, is considered a valid tool for assessing the health status of older adults. However, little is known about the associations between changes in waist-to-height ratio and all-cause mortality in older adults. The aim of the study was to investigate the association between changes in waist-to-height ratio and all-cause mortality in Chinese older adults. Method: This study was based on the Chinese Longitudinal Healthy Longevity Survey from 2011 to 2018, including a sample of 4,065 participants aged 60 years and over. Changes in waist-to-height ratio were divided into quintiles, with waist-to-height ratio-stable group (change less than 0.01) defined as the reference group. Cox proportional hazards models were used to examine the associations between changes in waist-to-height ratio and all-cause mortality, adjusted for covariates including demographic characteristics, health behaviors, and health status. Kaplan-Meier survival curves were used to study the associations between changes in different categories of waist-to-height ratio and all-cause mortality. Results: The study documented 1,449 deaths among the 4,065 participants. Changes in waist-to-height ratio were significantly associated with all-cause mortality (adjusted hazard ratio: 0.30, 95% confidence interval: 0.13, 0.68). Compared with participants within waist-to-height ratio-stable group, a decline in waist-to-height ratio of ≥ 0.06 was associated with increased all-cause mortality (adjusted hazard ratio: 1.45; 95% confidence interval: 1.24, 1.71). The Log-rank statistic showed the largest decrease in waist-to-height ratio and the lowest cumulative survival. There was no significant interaction between the study subgroups. Conclusion: There was an inverse association between changes in waist-to-height and all-cause mortality. Compared with waist-to-height ratio-stable group, participants who had a decline more than 0.06 in waist-to-height ratio had an increased risk of all-cause mortality. This suggested that changes in waist-to-height ratio may be a simple and effective indicator of mortality risk for older adults.
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