| Methods |
P
SB |
| Participants |
N 122 (B/W/A.67/55/0)
Hypertension
Age 62 |
| Interventions |
SR 45 (187‐142)
Dur 90 |
| Outcomes |
SBP, DBP |
| Notes |
LoFo: 36. 122 of 158 completed the study. IT: No |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Low risk |
random number table, randomisation procedure stratified by race |
| 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 LS:24/106; US: 12/52 |
| 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 |
Low risk |
Outcome detection blinded |
