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

Drayer 1983.

Methods 4‐ to 6‐week placebo run‐in; inclusion criteria= supine DBP 95‐115 mm Hg on 2 consecutive visits after beginning of placebo run‐in; 8‐week double‐blind treatment
Participants Captopril 25 mg twice daily: n=77(60 males,17 females); mean age=52 years; baseline supine SBP=156 mm Hg, DBP=101 mm Hg; 
 Captopril 50 mg twice daily: n=71(50 males,21 females); mean age=52 years; baseline supine SBP=154 mm Hg, DBP=101 mm Hg; 
 Captopril 100 mg twice daily: n=69(44 males,25 females); mean age=55 years; baseline supine SBP=158 mm Hg, DBP=102 mm Hg; 
 Placebo: n=77(53 males,24 females); mean age=53 years; baseline supine SBP=157 mm Hg, DBP=102 mm Hg
Interventions Captopril 25 mg twice daily; 
 Captopril 50 mg twice daily; 
 Captopril 100 mg twice daily; 
 Placebo
Outcomes Percent change from baseline in trough supine SBP/DBP using mercury sphygmomanometer; 
 WDAE
Notes BP change reported, SD of change not reported, endpoint BP and SD not reported; baseline SD not reported; imputed overall trial mean SD of change for SBP and DBP; percent change in SBP data from text, p. III‐110; percent change in DBP data from Figure 1, p. III‐110; percent change in BP has been converted to absolute BP change data; Jadad score=3; funding source= not reported
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment? Unclear risk B ‐ Unclear