Outcome Measures
The assessed outcomes of the studies are shown in Table 2. There is great heterogeneity regarding the measurement values of each outcome. Ten studies 7,19–21,23–26,28,29 assessed insulin levels in serum before and after treatment, 9 studies7,19,20,23–26,28,29 assessed glucose levels in serum before and after treatment, 6 8,20,27,28,30,31 studies assessed adiponectin levels in serum before and after treatment. Finally, 6 studies 7,8,19,20,22,29 estimated HOMA-IR before and after treatment, while in 5 studies23–26,28 the latter was calculated by the reviewers EP and GNK.