Table 3.

Pearson's correlation coefficient matrix of teeth and skin colour at different locations.

Location	Values	Group 1	Group 2	Group 3	Group 4
Earlobe	L	0.275∗	0.192	−0.399∗∗	−0.275
	a	−0.240∗	−0.268∗	0.348∗∗	0.037
	b	0.029	−0.142	0.479∗∗	−0.341
Forehead	L	0.217	0.271∗	−0.415∗∗	0.041∗
	a	0.038	−0.164	0.285∗∗	0.024
	b	−0.022	−0.065	0.502∗∗	−0.351
Malar	L	0.186	0.261∗	−0.390∗∗	−0.193
	a	0.087	−0.185	0.447∗∗	0.083
	b	0.061	−0.094	0.483∗∗	−0.354

 ∗Significant at P = 0.05. ∗∗Significant at P = 0.01.