Kuang 1987a.

Methods	RCT
Participants	46 male essential hypertensives aged 40 to 60 years were randomly assigned to 1 of 2 arms ‐ qigong or control Inclusion criteria: DBP 100 to 120 mmHg 23 participants were randomly assigned to qigong, and 23 to control The country of publication was China
Interventions	Qigong group: developed by institute of researchers on principles of a quiet mind, a relaxed body and smooth breathing. Exercises were done in a sitting position and occasionally while standing for 20 to 30 minutes twice a day. Also given antihypertensive drugs on a regular basis Control group: given only antihypertensive drugs on a regular basis Follow‐up: 1 year
Outcomes	Blood pressure
Notes	Article was translated by MSL and was checked by JSWK
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not stated
Allocation concealment (selection bias)	Unclear risk	Not stated
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not stated
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not stated
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Information was insufficient for judgement
Selective reporting (reporting bias)	Unclear risk	Information was insufficient for judgement
Other bias	Unclear risk	Information was insufficient for judgement