Table 2.

Cited studies included in the meta-analysis.

Cited study	Number	Ethnic group	Maxilla (r)	Mandible (r)
Billard&Wylle9	441	Caucasian		0.64
Motakawa22	119	Japanese		0.66
Tanaka&Johnson14	506	Caucasian	0.625	0.648
Furguson etal18	105	American Blacks	0.630	0.706
Ziberman etal23	46	Israel	0.640	0.66
Keith20	46/51 (F?M)	Hong Kong Chinese	0.79/0.65 F/M	0.77/0.69 F/M
Ver-der-merwe21	127/73 (F/M)	South African (Whites)	0.72/0.56 F/M	0.70/0.68 F/M

r=coefficient of correlation