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21.06.2017 | Original Contribution | Ausgabe 6/2018

European Journal of Nutrition 6/2018

Adherence to Mediterranean diet in relation to bone mineral density and risk of fracture: a systematic review and meta-analysis of observational studies

Zeitschrift:
European Journal of Nutrition > Ausgabe 6/2018
Autoren:
Hanieh Malmir, Parvane Saneei, Bagher Larijani, Ahmad Esmaillzadeh

Abstract

Purpose

We aimed to systematically review available data on the association between adherence to MD and BMD as well as risk of fractures and to summarize this information through a meta-analysis.

Methods

Previous studies in the field of adherence to MD in relation to BMD and risk of fracture were selected through searching PubMed, Scopus, ISI Web of Science and Google Scholar databases prior to June, 2016 using Mesh and non-Mesh relevant keywords.

Results

In the meta-analysis of four effect sizes, obtained from three studies, we found that adherence to MD was associated with a 21% reduced risk of hip fracture (overall RR 0.79; 95% CIs 0.72–0.87). Adherence to MD was positively associated with lumber spines (mean difference of BMD comparing highest and lowest categories of MD score 0.12; 95% CI 0.06–0.19 g/cm2), femoral neck (0.10; 0.06–0.15 g/cm2) and total hip (0.11; 0.09–0.14 g/cm2) BMD. Meta-regression of included observational studies revealed a significant inverse linear association between Mediterranean diet score and risk of hip fracture, such that one unit increase in the score of Mediterranean diet was associated with a reduction in the risk of hip fracture (RR 0.95, 95% CI 0.92–0.98 p = 0.01).

Conclusion

Adherence to MD was associated with a reduced risk of fracture as well as with a higher mean BMD.

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