Reason for exclusion | A three-arm study comparing the effects of Ketangling granules (sheng di 10g, shu di 15g, huang jing 10g, huang lian 5g, huang bai 6g, tian hua fen 10g, ze xie 15g, dan shen 10g, chuan xiong 10g, zhi da huang 6g) plus diet & lifestyle modification (n = 32) compared to diet & lifestyle alone (n = 14) and compared to no intervention (n = 16) in people with impaired glucose tolerance. The discrepancy in sampling numbers indicates that it is unlikely that the study was truly randomised. |