Table 2.

Mean Chronological and Dental age calculated using the Cameriere formulae for South African Black and Indian population group of KZN (in years).

Formula	Sample Size	Age Range	Sex	Population Group	Maxillary						Mandibular
					Mean CA	Mean DA	Mean CA–DA	MAE	Correlation (R2)	p-Value	Mean CA	Mean DA	Mean CA–DA	MAE	Correlation (R2)	p-Value
Cameriere (2006) Italian [8]	440	5.00 – 15.99	B	SA Black & Indian	10.49	9.88	0.61	1.00	−0.68	<0.001	10.49	10.05	0.44	1.04	−0.67	<0.001
	220		F	SA Black & Indian	10.50	9.85	0.65	1.01	−0.68	<0.001	10.50	9.98	0.52	1.05	−0.66	<0.001
	220		M	SA Black & Indian	10.48	9.90	0.58	0.99	−0.68	<0.001	10.48	10.12	0.36	1.04	−0.68	<0.001
	220		B	SA Black	10.48	9.91	0.57	1.05	−0.66	<0.001	10.48	10.04	0.44	1.13	−0.65	<0.001
	110		F	SA Black	10.48	9.86	0.62	1.03	−0.67	<0.001	10.48	9.94	0.54	1.14	−0.67	<0.001
	110		M	SA Black	10.48	9.96	0.52	1.08	−0.64	<0.001	10.48	10.15	0.33	1.12	−0.65	0.006
	220		B	SA Indian	10.48	9.83	0.65	0.94	−0.70	<0.001	10.48	10.04	0.44	0.96	−0.69	<0.001
	110		F	SA Indian	10.53	9.85	0.68	0.99	−0.69	<0.001	10.53	10.02	0.51	0.96	−0.66	<0.001
	110		M	SA Indian	10.49	9.83	0.66	0.90	−0.71	<0.001	10.49	10.09	0.40	0.96	−0.72	<0.001
Bayesian SA Black Cameriere (2017) [26]	360	6.00 – 14.99	B	SA Black & Indian	10.49	10.65	−0.16	0.88	0.82	<0.001	10.49	10.74	−0.25	0.80	0.83	<0.001
	180		F	SA Black & Indian	10.50	10.68	−0.18	0.91	0.82	0.000	10.50	10.74	−0.24	0.83	0.83	<0.001
	180		M	SA Black & Indian	10.47	10.61	−0.14	0.89	0.82	0.000	10.47	10.73	−0.26	0.77	0.84	<0.001
	180		B	SA Black	10.46	10.71	−0.25	0.89	0.83	0.005	10.46	10.68	−0.22	0.87	0.83	<0.001
	90		F	SA Black	10.47	10.65	−0.18	0.84	0.83	0.139	10.47	10.63	−0.16	0.89	0.83	0.020
	90		M	SA Black	10.46	10.77	−0.31	0.94	0.82	0.006	10.46	10.72	−0.26	0.85	0.84	0.004
	180		B	SA Indian	10.52	10.58	−0.06	0.86	0.82	0.009	10.52	10.79	−0.27	0.72	0.83	<0.001
	90		F	SA Indian	10.53	10.71	−0.18	0.87	0.82	0.012	10.53	10.84	−0.31	0.75	0.83	0.001
	90		M	SA Indian	10.50	10.45	0.05	0.86	0.82	0.014	10.50	10.75	−0.25	0.70	0.83	0.003

B—both (male and female); F—female; M—male; SA—South African; CA—chronological age; DA—dental age; MEA—mean absolute error.