Abstract

ObjectiveTo perform a systematic review and meta-analysis of randomized controlled trials (RCTs) to evaluate acupuncture's clinical effect on insulin resistance (IR) in women with polycystic ovary syndrome (PCOS). MethodsPubMed, Cochrane Library, Embase databases, and Chinese databases, including China National Knowledge Infrastructure, Technology Journal Database, and Wanfang Database, were searched without language restrictions from inception to December 20, 2021. Only RCTs in which acupuncture had been examined as the sole or adjunctive PCOS-IR treatment were included. Our primary endpoint was the homeostasis model assessment of insulin resistance (HOMA-IR). The secondary outcomes were fasting blood glucose (FBG), fasting insulin (FINS), body mass index (BMI), and adverse events. ResultsOur analysis included 17 eligible RCTs (N = 1511 participants). Compared with other treatments, acupuncture therapy yielded a greater mean reduction in HOMA-IR (MD = −0.15; 95% CI, −0.27 to −0.03; P = 0.01) and BMI (MD = −1.47; 95% CI, −2.46 to −0.47; P = 0.004). Besides acupuncture was associated with a lower risk of adverse events than other treatments (RR, 0.15; 95% CI, 0.10 to 0.22; P < 0.01). Additionally, the combination treatment of acupuncture and medicine is more effective in improving HOMA-IR (MD = −0.91; 95% CI, −1.11 to −0.71; P < 0.01), FBG (MD = −0.30; 95% CI, −0.56 to −0.04; P = 0.02), FINS (MD = −2.33; 95% CI, −2.60 to −2.06; P < 0.01) and BMI (MD = −1.63; 95% CI, −1.94 to −1.33; P < 0.01) than medicine alone. ConclusionsAcupuncture is relatively effective in improving HOMA-IR and BMI in PCOS-IR. Besides, it's safer than other treatments and could be an adjuvant strategy for improving PCOS-IR. Further large-scale, long-term RCTs with strict methodological standards are justified.

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