Table 3.

Linear regression correlation results between baseline serum selenium (X) and post-supplementation serum selenium level (Y), stratified by single-nucleotide polymorphism (SNP) genotypes.

Genotype		11	12	22
GPX1 rs1050450 C>T	r 2	0.023	0.014	0.137
	slope	0.186	0.151	0.516
	p	0.019 *	0.095	0.031 *
	n	240	202	34
SEL15 rs5845 C>T	r 2	0.016	0.030	0.007
	slope	0.149	0.228	0.126
	p	0.031 *	0.026*	0.761
	n	300	164	15
MnSOD rs4880 T>C	r 2	0.030	0.027	0.008
	slope	0.226	0.207	0.105
	p	0.060	0.011 *	0.321
	n	121	236	120
AKR1C3 rs12529 C>G	r 2	0.018	0.080	0.000
	slope	0.167	0.356	−0.007
	p	0.075	<0.0001 *	0.965
	n	180	196	64
KLK3 rs17632542 T>C	r 2	0.019	0.028
	slope	0.176	0.193
	p	0.006 *	0.288
	n	391	42

1 Major allele, 2 Variant allele, r² = coefficient of determination, p = statistical significance of slope (regression coefficient), n = number of individuals tested; * indicates statistically significant.