Chinese herbal medicines for people with impaired glucose tolerance or impaired fasting blood glucose

. Author manuscript; available in PMC: 2011 Oct 12.

Published in final edited form as: Cochrane Database Syst Rev. 2009 Oct 7;(4):CD006690. doi: 10.1002/14651858.CD006690.pub2

Reason for exclusion	Quasi-randomised study comparing the effects of a Chinese herbal medicine (huang qi 20g, shan yao 20g, dan shen 20g, sheng di huang 20g, shu di huang 20g, tian hua fen 40g, fu ling 15g, chi shao 15g, chai hu 12g, shu da huang 10g, zhi shi 10g, huang qin 10g, qu mai 10g) versus metformin in 64 people over 12 months. The method of allocation to groups was inadequate.
	From a phone call to the author it was ascertained that participants were allocated to the treatment according to the judgement of the clinician.