Table 2. Primary information for BTLA targging SNPs (rs2171513 G>A, rs3112270 A>G, rs1982809 G>A and rs16859629 T>C).

Genotyped polymorphisms	rs2171513 G>A	rs3112270 A>G	rs1982809 G>A	rs16859629 T>C
Chr	3	3	3	3
Position_38	112466080	112461797	112463893	112471533
Region	3′-UTR	Promoter	3′-UTR	intron_variant
MAF1 in database (1000 g Chinese Han populatons)	0.188	0.269	0.216	0.067
MAF in our controls (n = 1540)	0.196	0.280	0.256	0.084
P value for HWE2 test in our controls	0.625	0.114	0.796	0.898
% Genotyping value	98.34%	98.56%	98.52%	97.48%

¹MAF, minor allele frequency.

²HWE, Hardy–Weinberg equilibrium.