Table 2.

Subgroup analysis of exercise intervention for depressive symptoms in antenatal pregnant women.

Adjustment variables	Subgroup	Heterogeneity test		Sample size	SMD [95%CI]
		P	I2(%)
Type of Exercise Intervention	Static exercise	0.18	45.3%	154	-0.73[-1.35-0.11]
	Dynamic exercise			270	-0.23[-0.62,0.17]
Duration of Continuous Intervention	≤ 3 months	0.81	0%	296	-0.39[-0.98,0.20]
	> 3 months			228	-0.47[-0.73,-0.20]
Timing of Intervention during Pregnancy	Before 20 weeks	0.19	42.3%	402	-0.60[-0.95,-0.25]
	After 20 weeks			126	-0.10[-0.76,0.56]