From: Metformin: an old but still the best treatment for type 2 diabetes
Study
Randomized
Country
N
Duration years
Mean change in risk MET (%)
Mean change in risk LSM (%)
DPP [7]
yes
USA
3234
3
−31%
−58%
IDPP [9]
India
522
−26.4%
−28.2%
Yang et al.[10]
China
321
2.5
−77%
-
DPPOS [11]
2766
5.7
−18%
−34%