1. Alcohol consumption and accelerated biological ageing in middle-aged and older people: A longitudinal study from two cohorts.
- Author
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Hongxiang Chen, Jianzhong Yin, Yi Xiang, Ning Zhang, Zitong Huang, Yuan Zhang, Dan Tang, Ziyun Wang, Baimayangji, Liling Chen, Xiaoman Jiang, Xiong Xiao, and Xing Zhao
- Subjects
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RISK assessment , *SELF-evaluation , *RESEARCH funding , *QUESTIONNAIRES , *FRAIL elderly , *DESCRIPTIVE statistics , *LONGITUDINAL method , *AGING , *ALCOHOL drinking , *COMPARATIVE studies , *CONFIDENCE intervals , *DRINKING behavior , *BIOMARKERS , *MIDDLE age , *OLD age - Abstract
Background and aims: The relationship between alcohol consumption and age-related diseases is inconsistent. Biological age (BA) serves as both a precursor and a predictor of age-related diseases; however, longitudinal associations between alcohol consumption and BA in middle-aged and older people remain unclear. We measured whether there was a longitudinal association between drinking frequency and pure alcohol intake with BA among middle-aged and older people. Design and setting and participants: This study involved two prospective cohort studies, set in Southwestern China and the United Kingdom. A total of 8046 participants from the China Multi-Ethnic Cohort study (CMEC) and 5412 participants from the UK Biobank (UKB), aged 30-79 years, took part, with complete data from two waves of clinical biomarkers. Measurements: BA was calculated by the Klemera Doubal's method. Accelerated BA equalled BA minus chronological age. Drinking frequency and pure alcohol intake were obtained through self-reported questionnaires. Drinking frequency in the past year was classified as current non-drinking, occasional (monthly drinking) and regular (weekly drinking). Findings: Compared with consistent current non-drinkers, more frequent drinkers [CMEC: β = 0.46, 95% confidence interval (CI) = 0.13-0.80; UKB: β = 0.65, 95% CI = 0.01-1.29)], less frequent drinkers (CMEC: β = 0.62, 95% CI = 0.37-0.87; UKB: β = 0.54, 95% CI = -0.01-1.09), consistent occasional drinkers (CMEC: β = 0.51, 95% CI = 0.23-0.79; UKB: β = 0.63, 95% CI = 0.13-1.13) and consistent regular drinkers (CMEC: β = 0.56, 95% CI = 0.17-0.95; UKB: β = 0.46, 95% CI = 0.00-0.91) exhibited increased accelerated BA. A non-linear relationship between pure alcohol intake and accelerated BA was observed among consistent regular drinkers. Conclusions: In middle-aged and older people, any change in drinking frequency and any amount of pure alcohol intake seem to be positively associated with acceleration of biological ageing, compared with maintaining abstinence. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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