Angiotensin converting enzyme (ACE) inhibitors or angiotensin II receptor antagonists (AIIRAs) v placebo or no treatment (control)*

Outcomes at at 6–96 monthsNumber of trials (n)Intervention v controlWeighted event ratesRRR (95% CI)NNT (CI)
*Abbreviations defined in glossary; weighted event rates, RRR, RBI, NNT, and CI calculated from data in article using a random effects model.
†NS  =  not significant.
All cause mortality20 (2383)ACE inhibitors11.5% v 12.2%21% (1 to 37)157 (44 to ∞)
5 (3409)AIIRAs15.4% v 15.6%1% (−16 to 15)NS†
Progression from microalbuminuria to macroalbuminuria16 (2010)ACE inhibitors11% v 22%54% (29 to 70)10 (6 to 23)
3 (761)AIIRAs7.1% v 15%51% (25 to 68)14 (9 to 35)
Doubling of serum creatinine3 (3251)AIIRAs18% v 22%21% (9 to 31)32 (14 to ∞)
End stage renal disease3 (3251)AIIRAs17% v 19%22% (9 to 33)37 (16 to ∞)
RBI (CI)NNT (CI)
Regression from microalbuminuria to normoalbuminuria15 (1888)ACE inhibitors28% v 10%202% (83 to 398)6 (4 to 10)
2 (670)AIIRAs26% v 18%42% (5 to 93)13 (8 to 57)