Document Detail


Meta-analysis comparing Mediterranean to low-fat diets for modification of cardiovascular risk factors.
MedLine Citation:
PMID:  21854893     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Evidence from individual trials comparing Mediterranean to low-fat diets to modify cardiovascular risk factors remains preliminary.
METHODS: We systematically searched MEDLINE, EMBASE, Biosis, Web of Science, and the Cochrane Central Register of Controlled Trials from their inception until January 2011, as well as contacted experts in the field, to identify randomized controlled trials comparing Mediterranean to low-fat diets in overweight/obese individuals, with a minimum follow-up of 6 months, reporting intention-to-treat data on cardiovascular risk factors. Two authors independently assessed trial eligibility and quality.
RESULTS: We identified 6 trials, including 2650 individuals (50% women) fulfilling our inclusion criteria. Mean age of enrolled patients ranged from 35 to 68 years, mean body mass index from 29 to 35 kg/m(2). After 2 years of follow-up, individuals assigned to a Mediterranean diet had more favorable changes in weighted mean differences of body weight (-2.2 kg; 95% confidence interval [CI], -3.9 to -0.6), body mass index (-0.6 kg/m(2); 95% CI, -1 to -0.1), systolic blood pressure (-1.7 mm Hg; 95% CI, -3.3 to -0.05), diastolic blood pressure (-1.5 mm Hg; 95% CI, -2.1 to -0.8), fasting plasma glucose (-3.8 mg/dL, 95% CI, -7 to -0.6), total cholesterol (-7.4 mg/dL; 95% CI, -10.3 to -4.4), and high-sensitivity C-reactive protein (-1.0 mg/L; 95% CI, -1.5 to -0.5). The observed heterogeneity across individual trials could, by and large, be eliminated by restricting analyses to trials with balanced co-interventions or trials with restriction of daily calorie intake in both diet groups.
CONCLUSION: Mediterranean diets appear to be more effective than low-fat diets in inducing clinically relevant long-term changes in cardiovascular risk factors and inflammatory markers.
Authors:
Alain J Nordmann; Katja Suter-Zimmermann; Heiner C Bucher; Iris Shai; Katherine R Tuttle; Ramon Estruch; Matthias Briel
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Publication Detail:
Type:  Comparative Study; Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of medicine     Volume:  124     ISSN:  1555-7162     ISO Abbreviation:  Am. J. Med.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-08-22     Completed Date:  2011-10-24     Revised Date:  2012-01-27    
Medline Journal Info:
Nlm Unique ID:  0267200     Medline TA:  Am J Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  841-51.e2     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Affiliation:
Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Switzerland. nordmanna@uhbs.ch
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Body Mass Index
Cardiovascular Diseases / diet therapy*,  prevention & control
Diet, Fat-Restricted*
Diet, Mediterranean*
Diet, Reducing
Exercise
Female
Humans
Male
Middle Aged
Myocardial Infarction / diet therapy,  prevention & control
Obesity / diet therapy*
Overweight / diet therapy*
Randomized Controlled Trials as Topic
Risk Factors
Sedentary Lifestyle
Waist Circumference
Comments/Corrections
Comment In:
Ann Intern Med. 2011 Dec 20;155(12):JC6-3   [PMID:  22184704 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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