Table 3.

Random-effects model and heterogeneity statistics of overall meta-analysis of mtDNA-cn in ASD/ADHD patients and controls (k = 14).

Random-effects model
	Estimate	SE	Z	95% CI Lower Bound	95% CI Upper Bound	p-value
Intercept	0.25	0.11	0.20	0.03	0.48	0.0275
Heterogeneity statistics
Tau	Tau2	I2	H2	R2	df	Q	p-value
0.42	0.1777 (SE = 0.0716)	99.9%	8234.3		13.00	171751.8	< 0.001