Two Variants in the NOTCH4 and HLA-C Genes Contribute to Familial Clustering of Psoriasis

Table 1

Description of study samples of patients with psoriasis.

Subtypes	Age of onset before removing type 2 psoriasis				Age of onset after removing type 2 psoriasis
	≤40	>40	OR		^1
PBH	1,538	184	1.82			0.061
SP	5,262	1,143

¹SD: standard deviation.