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Meta-Analysis
. 2022 Jan 28;19(3):1515.
doi: 10.3390/ijerph19031515.

Alcohol Consumption, Bone Mineral Density, and Risk of Osteoporotic Fractures: A Dose-Response Meta-Analysis

Justyna Godos  1 , Francesca Giampieri  2 , Emanuele Chisari  3 , Agnieszka Micek  4 , Nadia Paladino  1 , Tamara Y Forbes-Hernández  5 , José L Quiles  2   5 , Maurizio Battino  6   7 , Sandro La Vignera  8 , Giuseppe Musumeci  1   9 , Giuseppe Grosso  1
Affiliations
Meta-Analysis

Alcohol Consumption, Bone Mineral Density, and Risk of Osteoporotic Fractures: A Dose-Response Meta-Analysis

Justyna Godos et al. Int J Environ Res Public Health. .

Abstract

Excess alcohol consumption is known to be detrimental to human health. However, the role of light-to-moderate alcohol intake is under investigation for potential certain health benefits-mostly related to the cardiovascular system. Nevertheless, there is no univocal agreement on this matter, and research is still ongoing to clarify whether there might be other potential outcomes affected by alcohol intake. In this regard, there is evidence that excess alcohol intake may negatively influence the risk of osteoporotic fractures. However, there is no comprehensive evidence of literature assessing the role of alcohol consumption in bone mineral density (BMD) and the risk of osteoporotic fractures. Thus, the aim of this study was to quantitatively assess the dose-response relationship between alcohol intake and BMD and risk of osteoporotic fractures. The Embase and MEDLINE electronic databases were searched from their inception to December 2021 for articles providing a quantifiable measurement of alcohol consumption for at least three categories and (1) a measurement of BMD (and dispersion as continuous variables) in some area of the body or (2) risk of osteoporotic fracture provided as relative risk (RR) or hazard ratio (HR), with a 95% confidence interval (CI) as the measure of the association of each category with alcohol intake. A total of 11 studies including 46,916 individuals with BMD assessment and 8 studies including 240,871 individuals with risk of fracture analysis were included. Compared to non-drinkers, consumption of up to two standard drinks of alcohol per day was correlated with higher lumbar and femur neck BMD values, while up to one standard drink of alcohol was correlated with higher hip BMD compared to no alcohol consumption. Higher risk of hip fractures was found starting from three standard drinks of alcohol per day (RR = 1.33, 95% CI: 1.04; 1.69 for three alcoholic drinks/d, and RR = 1.59, 95% CI: 1.23; 2.05 for four alcoholic drinks/d) compared to no alcohol consumption, with no evidence of heterogeneity. Concerning the risk of any osteoporotic fractures, the risk steadily increased with higher intake of alcohol, although never reaching statistical significance. In conclusion, there is consistent evidence that increased alcohol consumption is associated with higher risk of osteoporotic hip fracture; however, the role of alcohol at lower doses is uncertain, as BMD was even higher in light drinkers compared to abstainers.

Keywords: alcohol; bone health; bone mineral density; fractures; meta-analysis; osteoporosis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flowchart of the study selection process.
Figure 2
Figure 2
Graphical representation of summary mean differences of bone mineral density in different body segments between various doses of alcohol consumption vs. no consumption.
Figure 3
Figure 3
Graphical representation of the dose–response meta-analysis of the risk of hip and any fracture for various doses of alcohol consumption.
Figure 4
Figure 4
Meta-analysis of the risk of hip and any fracture for the highest vs. lowest categories of alcohol consumption.
See this image and copyright information in PMC

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