Table 2.

Genotypes and allelic frequencies of PTPN22 1858 for the case and control groups

Type		Case group	Control group	OR (95% CI)	p-value
Genotype
	TT	0 (0)	0 (0)
	CC	136 (68)	157 (78.5)
	CT	64 (32)	43 (21.5)	1.72 (1.07-2.76)	0.01
Allele
	C	336 (84)	357 (89.25)
	T	64 (16)	43 (10.75)	1.58 (1.02-2.44)	0.02
Data presented as n (%). Chi-square test and p $<$ 0.05 was considered significant. OR: Odds ratio, CI: Confidence interval