Abstract
The association between alcohol consumption and kidney function is intriguing, but study results are mixed and controversial. We examined the association of alcohol consumption with the overall change in kidney function over 12 years. We analyzed data from a population-based cohort that was part of the Korean Genome and Epidemiology Study. Primary exposure was total alcohol intake (non-drinkers, 0 to < 10 g/day, 10 to < 30 g/day, and ≥ 30 g/day). Main outcome was decline in kidney function over 12 years. Our study included 5729 participants (mean [SD] age, 51 [8] years; 46% males). Compared to non-drinkers, higher alcohol intake groups had lesser reduction in estimated glomerular filtration rate (eGFR) over 12 years; fully adjusted beta coefficients and 95% confidence intervals were 0.45 (− 0.27, 1.18), 1.87 (0.88, 2.87), and 3.08 (1.93, 4.24) for participants with alcohol intake of < 10, 10 to < 30, and ≥ 30 g/day, respectively. However, this association was attenuated among women, smoker, and age ≥ 60 year. Compared with not drinking, more frequent alcohol consumption and binge drinking were associated with lesser reduction in eGFR. Our findings suggest that alcohol consumption may have a favorable effect on kidney function among the general population.
Highlights
The association between alcohol consumption and kidney function is intriguing, but study results are mixed and controversial
Data from 10,030 participants were extracted from a de-identified dataset for analysis, and 9724 participants who had baseline data on alcohol consumption were included in our cohort
Drinkers; the fully adjusted odds ratios and 95% confidence intervals (CIs) were 1.0 (0.84, 1.19), 0.90 (0.72, 1.14), and 0.65 (0.50, 0.86) for those with a baseline total alcohol intake of < 10 g/day, 10 to < 30 g/day, and ≥ 30 g/day, respectively (Fig. 4). In this population-based cohort study, we found that alcohol consumption was negatively associated with decline in kidney function in general population, independently of baseline kidney function and comorbidities
Summary
The association between alcohol consumption and kidney function is intriguing, but study results are mixed and controversial. Compared to non-drinkers, higher alcohol intake groups had lesser reduction in estimated glomerular filtration rate (eGFR) over 12 years; fully adjusted beta coefficients and 95% confidence intervals were 0.45 (− 0.27, 1.18), 1.87 (0.88, 2.87), and 3.08 (1.93, 4.24) for participants with alcohol intake of < 10, 10 to < 30, and ≥ 30 g/day, respectively. This association was attenuated among women, smoker, and age ≥ 60 year. We sought to examine the association of alcohol consumption with the change and rapid decline in kidney function over 12 years in a South Korean population-based cohort study
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