Table 4.

Stratified analysis for the adjusted hazard ratio (95% C.I.) stratified by age subgroups (Study 2).

Variables	Psoriasis vs Comparison (ref.)
	aHR1	95% CI	p-value
Age (year)
≤40	1.55	1.40 - 1.71	<0.001
41-64	1.30	1.21 - 1.40	<0.001
≥65	0.89	0.78 - 1.02	0.083

¹aHR, adjusted hazard ratio. Extraneous factors adjusted in the model contained all variables in Supplementary Table 4 .