Table 2. The risk of psoriasis between 4 SNP-HLA PRS groups in the initial stage.

Polygenic risk score	No. Case	No. Control	OR(95%CI)	P
< = 1.64	114	853	ref.	—
1.64–2.01	148	813	1.37 (0.70–2.31)	1.96×10–2
2.01–2.56	211	846	1.87 (1.47–2.41)	6.25×10–7
>2.56	3148	836	28.20 (22.95–34.95)	<2.00×10–16

We used gender, age as covariates in this logistic regression models. ref.: reference. OR: odds ratio; 95%CI: 95% confidence interval.