Study

Publication

Intervention

Cumulative Incidences (%)

RRR (%)

US DPP

2002

Metformin 1073

Control 1082

21.7

28.9

31

Indian DPP

2006

Metformin 133

Control 136

40.5

55

26

STOP NIDDM

2002

Acarbose 714

Control 715

32

42

25

ACT-NOW

2009

Pioglitazone 213

Control 228

3.1

8.2

81

US DPP@

2005

Troglitazone 585

Control 582

30

35

45

TRIPOD**

1998

Troglitazone 133

Control 133

20

45

55

DREAM

2006

Rosiglitazone 2635

Control 2634

11.6

26

60