Table 8.

Random-effects model and heterogeneity statistics of meta-analysis of mtDNA-cn in ASD/ADHD patients and controls based of age-matched, non-blood samples (k = 3).

Random-effects model
	Estimate	SE	Z	95% CI Lower Bound	95% CI Upper Bound	p-value
Intercept	0.174	0.18	4.13	0.39	1.08	< 0.001
Heterogeneity statistics
Tau	Tau2	I2	H2	R2	df	Q	p-value
0.31	0.094 (SE = 0.095)	99.9%	16,741		2.00	38,458	<0.001