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. 2008 Oct 8;2008(4):CD003823. doi: 10.1002/14651858.CD003823.pub2

Whelton 1992.

Methods 2‐week single‐blind placebo run‐in; inclusion criteria= sitting DBP 95‐114 mm Hg during run‐in; 4‐week double‐blind treatment
Participants Enalapril 10 mg: n=36(24 males,12 females); mean age=53 years; baseline sitting SBP=152.9 mm Hg, DBP=100.5 mm Hg; 
 Lisinopril 10 mg: n=37(22 males,15 females); mean age=51 years; baseline sitting SBP=146.9 mm Hg, DBP=99.1 mm Hg; 
 Placebo: n=37(23 males,14 females); mean age=50 years; baseline sitting SBP=149.9 mm Hg, DBP=99.5 mm Hg
Interventions Enalapril 10 mg once daily; 
 Lisinopril 10 mg once daily; 
 Placebo; 
 administered between 8 AM and 9 AM
Outcomes Baseline adjusted mean change from baseline in trough sitting SBP/DBP using mercury sphygmomanometer; 
 WDAE
Notes BP change and SE of change reported, endpoint BP and SD not reported; calculated SD of change from N and change SE; BP data from Table II, p. 328; Jadad score=3; funding source= ICI Americas Inc.
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment? Unclear risk B ‐ Unclear