Table 3.

Results of WOMAC subgroup analysis (type of exercise).

Measurements	Number of included studies	Subgroup	I2 value (%)	SMD (95% CI)	P value
WOMAC (pain)	2	Wuqinxi	89.7	−0.27 (−0.79, 0.25)	.313
	10	Tai Chi	59.6	−0.56 (−0.79, −0.34)	.0001
	1	Yijinjing	None	−0.49 (−1.10, 0.12)	.114
	2	Baduanjin	60.5	−0.11 (−0.61, 0.39)	.664
WOMAC (stiffness)	2	Wuqinxi	63.7	−0.36 (−0.64, −0.08)	.012
	10	Tai Chi	63.1	−0.43 (−0.67, −0.20)	.0001
	1	Yijinjing	None	1.05 (0.41, 1.69)	.001
	1	Baduanjin	None	−0.68 (−1.56, 0.21)	.132
WOMAC (function)	1	Wuqinxi	None	0.04 (−0.39, 0.47)	.855
	9	Tai Chi	63.3	−0.68 (−0.92, −0.43)	.0001
	1	Yijinjing	None	−0.07 (−0.67, 0.53)	.822
	2	Baduanjin	12.4	−0.17 (−0.49, 0.14)	.282

Bold values in the tables indicate meaningful results with P < .05.

WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.