| Reason for exclusion | Quasi-randomised study comparing the effects of a Chinese herbal medicine formula (Shu di 20g, shan zhu yu 10g, shan yao 10g, ze xie 10g, mu dan pi 10g, fu ling 10g, ban xia 10g, chen pi 10g, dan shen 10g, gou qi zi 10g, shan zha 10g) versus metformin in 90 participants with impaired glucose tolerance over 4 months. The report stated that the study was randomised. Information obtained from phone interview indicated that allocation was based on clinician’s decision. |
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