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. 2017 Apr 9;2017(4):CD004022. doi: 10.1002/14651858.CD004022.pub4

1010 Myers 1982.

Methods Op
 CO
Participants N 136
 Norm
 Age 39
Interventions SR 130
 Dur 14
Outcomes SBP 
 DBP
Notes Included 182
 LoFo: 46
 IT: yes (results not shown, but reported to be "similar")
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Insufficient information
Allocation concealment (selection bias) Unclear risk Insufficient information
Blinding (performance bias and detection bias) 
 All outcomes High risk Open study
Incomplete outcome data (attrition bias) 
 All outcomes High risk Lost to follow‐up 46/182
Selective reporting (reporting bias) Low risk No distinct selective outcome reporting
Blinding of participants and personnel (performance bias) 
 All outcomes High risk Open study: Performance bias due to knowledge of the allocated interventions by participants and personnel during the study.
Blinding of outcome assessment (detection bias) 
 All outcomes High risk Open study: Detection bias due to knowledge of the allocated interventions by outcome assessors