Table 2. Main characteristics of the sample.

		Total Group (n = 172)
Age (years)			15.60±2.19
Pigmentation (Melanin Index)			36.50±3.46
European Ancestry			0.69±0.08
African Ancestry			0.21±0.07
Amerindian Ancestry			0.10±0.03
Sum of intensities			8.8
	White		54 (31.4%)
“Color”	Brown		104 (60.5%)
	Black		14 (8.1%)

Data presented as mean ± standard deviation or frequencies.