McFate‐Smith 1991.

Methods	2‐ to 4‐week single‐blind placebo run‐in; inclusion criteria= sitting DBP 95‐115 mm Hg after run‐in; 4‐week double‐blind treatment
Participants	All patients: n=202; mean age=70 years; baseline sitting SBP=177 mm Hg, DBP=103 mm Hg; Benazepril 2 mg BID: n=50; Benazepril 10 mg BID: n=50; Placebo: n=50
Interventions	Benazepril 2 mg twice daily; Benazepril 10 mg twice daily; Placebo
Outcomes	Mean change from baseline in sitting SBP/DBP; BP measured 10‐14 h post‐dose
Notes	BP change reported; SD of change not reported, endpoint BP and SD not reported; imputed overall trial mean SD of change; BP data from Table 1, p. IV‐81; BP measurement device not reported; Jadad score=3; funding source= Ciba‐Geigy Inc.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear