Table 2.

Baseline test score table

	Outcome measures	Study (Patient)	SMD(95%CI)	P-value of the intervention effect	Heterogeneity
Cognitive function	MOCA	3(n = 175)	0.103,(-0.195;0.401)	P = 0.496	I2 = 0%, P = 0.544
Depressive symptoms	HAMD	4(n = 168)	0.071,(-0.219;0.362)	P = 0.631	I2 = 2.6%, P = 0.392
Walk ability	FOG-Q	3(n = 90)	0.023,(-0.398;0.444)	P = 0.915	I2 = 0%, P = 0.967
	TUGT	5(n = 178)	-0.182,(-0.470; 0.106)	P = 0.216	I2 = 4%, P = 0.108;
	UPDRSIII	11(n = 489)	-0.03,(-0.203;0.142)	P = 0.730	I2 = 0%, P = 0.993