Table 3.

Subgroup analysis for the effect of acupuncture on reducing escape latency time

		SMD	LL	HL	Degrees of freedom	Heterogeneity	Effect size
						I2	Z	P
Species	SR	−3.33	−5.18	−1.47	5	92.10%	3.52	P < 0.00001
	WR	−2.85	−3.79	−1.91	5	73.50%	5.93	P = 0.002
Modeling	2-VO	−2.97	−4.21	− 1.73	6	85.80%	4.69	P < 0.00001
	4-VO	−3.36	−8.63	1.92	1	94.30%	1.25	P = 0.212
	EO	−2.38	−3.82	−0.95	1	65.80%	3.26	P = 0.001
	MCAO	−5.19	−6.58	−3.79	0	–	7.29	P < 0.00001
Methods	EA	−3.05	−4.56	−1.53	6	90.50%	3.94	P < 0.00001
	MA	−3.11	−4.23	−2.00	4	75.90%	5.47	P = 0.002
OVERALL		−3.06	−4.04	−2.09	11	87.10%	6.04	P < 0.00001

SR Sprague–Dawley Rats, WR Wister Rats, 2-VO bilateral common carotid artery occlusion, VO 4-vessel occlusion, EO embolic occlusion, MCAO middle cerebral artery occlusion, EA Electroacupuncture, MA Manual acupuncture