Table 1: Prevalence of the analyzed polymorphisms (n = 72). Extended Western Region of Minas Gerais, MG, Brazil, 2015.

	Percentage	N	p-value*
TaqIA polymorphism
Genotypes
Homozygous for the C allele	51.4	37	0.0454
Heterozygous	41.7	30
Homozygous for the T allele	6.9	5
Alleles
C	72.2	104
T	28.0	40
-141C polymorphism
Genotypes
Homozygous for the Del C allele	68.1	49	0.0000
Heterozygous	25.0	18
Homozygous for the Ins C allele	6.9	5
Alleles
Del C	80.5	116
Ins C	19.4	28
rs6280 polymorphism
Genotypes
Homozygous for the C allele	23.6	17	0.0032
Heterozygous	41.7	30
Homozygous for the T allele	34.7	25
Alleles
C	55.5	80
T	44.4	64

N: observed frequencies * p-value: chi-square test