根据口服葡萄糖耐量试验将每组分为正常糖耐量亚组(NGT)和糖耐量减低亚组(IGT)。

Every group was divided into normal glucose tolerance subgroup (NGT) and impaired glucose tolerance subgroup (IGT) according to oral glucose tolerance test.

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结论：治疗组优于对照组，降糖乐对糖耐量减低患者有明显的改善作用。

Conclusion: Treatment group was superior to the control group, while Hypoglycemic music on patients with impaired glucose tolerance (IGT) has significant improvement.

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