Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
All-cause mortality
[107] Systematic review	8021 people with diastolic heart failure 3 RCTs in this analysis	All-cause mortality 745/4005 (19%) with ACE inhibitors or angiotensin II receptor blockers 726/3996 (18%) with placebo	OR 1.03 95% CI 0.92 to 1.15 P = 0.62		Not significant