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Background:  Helicobacter pylori infection has been associated with diverse extradigestive morbidity, including insulin resistance (IR) syndrome. The aim of this systematic review was to summarize the epidemiologic evidence concerning the association between H. pylori infection and IR quantitative indexes.

Materials and Methods:  A computerized literature search in PubMed electronic databases and Cochrane Central Register of Controlled Trials was performed.

Results:  Nine studies reporting data on 2120 participants were finally eligible for this systematic review. Seven of them were cross‐sectional studies and two were nonrandomized, open‐label, controlled trials investigating the effect of H. pylori eradication on IR. Homeostatic model of assessment insulin resistance (HOMA‐IR) was used in all studies to quantify IR. There seems to be a trend toward a positive association between H. pylori infection and …