Tai Chi Chuan for the Primary Prevention of Stroke in Middle-Aged and Elderly Adults: A Systematic Review

Table 4

The effect of TCC on blood pressure.

Outcome or subgroup title	Number of; studies	Number of; participants	Effect size; std. mean difference (IV, random, 95% CI)	P value		PHeterogeneity
Tai Chi Chuan versus nonintervention for blood pressure
SBP (mmHg)
Intervention for less than half a year	9	634	−11.98 [−17.50, −6.47]	<0.0001	90℅	<0.00001
Intervention for more than 1 year	3	198	−9.58 [−14.54, −4.61]	0.0002	0℅	0.45
DBP (mmHg)
Intervention for less than half a year	9	634	−6.11 [−9.92, −2.29]	0.002	90℅	<0.00001
Intervention for more than 1 year	3	198	−4.00 [−7.44, −0.56]	0.02	11℅	0.32
Tai Chi Chuan plus other interventions versus same other interventions
SBP (mmHg)
Intervention for less than half a year	7	406	−14.21 [−17.54, −10.88]	<0.00001	43℅	0.11
Intervention for more than 1 year	3	624	−8.29 [−9.63, −6.95]	<0.00001	0℅	0.92
DBP (mmHg)
Intervention for less than half an year	7	406	−7.08 [−9.06, −5.09]	<0.00001	47℅	0.08
Intervention for more than 1 year	3	624	−4.56 [−6.45, −2.67]	0.0002	38℅	0.20

SBP: systolic blood pressure; DBP: diastolic blood pressure.