Table 1.

Genotypes of the PD-1 genes in two groups

		TB patients		Controls		χ2	P-value
		n	%	n	%
rs2227982	GG	128	25.45	131	26.52	0.171	0.918
	GA	274	54.47	267	54.05
	AA	101	20.08	96	19.43
HWE-P				0.055
rs36084323	AA	143	28.43	122	24.70	1.921	0.383
	AG	260	51.69	264	53.44
	GG	100	19.88	108	21.86
HWE-P				0.121
rs7568402	GG	223	44.33	270	54.66	12.037	0.002*
	GA	233	46.32	195	39.47
	AA	47	9.34	29	5.87
HWE-P				0.423

HWE-P, Hardy–Weinberg equilibrium-P value.

*P < 0.05.