Fig. 3. Meta-analysis results for each assessed outcome. (A) Comparison between decaffeinated green tea extract and placebo, outcome: glycosylated hemoglobin (HbA1c, %). (B) Comparison between decaffeinated green tea extract and green tea extract, outcome: fasting glucose. (C) Comparison between decaffeinated green tea extract and green tea extract, outcome: fasting insulin. (D) Comparison between decaffeinated green tea extract and green tea extract versus placebo, outcome: homeostatic model assessment for insulin resistance (HOMA-IR). SD, standard deviation; IV, independent variable; CI, confidence interval.
