Table 3. Pearson correlation coefficient analysis: Correlation of CA age and dental age derived by all three methods for boys and girls in the age group 3-18 years.

		MD	AA	D
Male CA	Pearson correlation N	0.860 (0.000) 251	0.385 (0.000) 251	0.854 (0.000) 251
Female CA	Pearson correlation N	0.859 (0.000) 271	0.718 (0.000) 271	0.789 (0.000) 271

Correlation is significant at the 0.01 level (2-tailed).