Table 3.

The findings of the meta-analysis.

Subgroup	r-bar	$\underset{\text{S}\text{2}}{\text{r}}$	S2e	S2p	Sp	P-value	Degree of freedom
Overall	0.655	0.001597	0.002116	−0.0052	12.07584	P=0.05	6
Maxilla	0.694	0.00436	0.004501	−0.0001	5.81208	P=0.05	2
Mandible	0.646	0.00104	0.001282	−0.0002	5.690461	P=0.05	2

r-bar=weighted mean correlation, $\underset{\text{S}\text{2=}}{\text{r}}$ variance, S²_e= sampling error, S²_p= variance in the population correlation and S_p= chi-square (for test of equality)