Statin use and the risk of chronic kidney disease in patients with psoriasis: A nationwide cohort study in Taiwan.

• Main Authors: Kwei-Lan Liu, Wen-Chien Tsai, Hung-Pin Tu, Chih-Hung Lee
• Format: Article
• Language: English
• Published: Public Library of Science (PLoS) 2020-01-01
• Series: PLoS ONE
• Online Access: https://doi.org/10.1371/journal.pone.0237816

<h4>Background</h4>Psoriasis is associated with hyperlipidemia. Few studies have examined the association among psoriasis, hyperlipidemia, and chronic kidney disease (CKD). It remains a topic of debate whether statin treatment for hyperlipidemia prevents the development of CKD in patients with psoriasis.<h4>Objective</h4>We investigated whether there is an association among psoriasis, hyperlipidemia and CKD. If so, we asked whether statin treatment for hyperlipidemia reduces the risk of CKD in patients with psoriasis.<h4>Methods</h4>A Taiwan nationwide population-based cohort study between 1997 and 2010 included 2,912 patients with psoriasis and 8,736 matched patients without psoriasis (1:3 propensity score matched according to age, sex, and region); 104,609 patients without psoriasis but with hyperlipidemia and 104,609 matched patients without psoriasis or hyperlipidemia (1:1). The hazard ratios, relative risks, and 95% confidence intervals were calculated using Cox proportional hazards model.<h4>Results</h4>Psoriasis significantly increased the risk of CKD (adjusted hazard ratio 2.48, 95% confidence interval 1.81-3.40), and so did hyperlipidemia (adjusted hazard ratio 2.93, 95% confidence interval 2.79-3.08). Compared to treatment without statins, statin treatment for hyperlipidemia reduced the risk of CKD in patients with psoriasis (adjusted relative risk 0.58, 95% confidence interval 0.55-0.62).<h4>Conclusion</h4>As well as hyperlipidemia, psoriasis significantly increased the risk of CKD. Statin treatment for hyperlipidemia reduced the risk of CKD in patients with psoriasis.