Abstract

Therapeutic options may be limited for patients with psoriasis who have concomitant liver disease (PsL). We aimed to report the frequency of liver disease among patients with psoriasis, and describe the clinical features, treatment modalities and quality of life. This was a multicentre cross-sectional study of patients with psoriasis notified to the Malaysian Psoriasis Registry (MPR) from January 2007 to December 2018. Of 21 735 patients with psoriasis, 174 (0.8%) had liver disease. The three most common liver diseases were viral hepatitis (62.1%), fatty liver (14.4%) and liver cirrhosis (10.9%). The male-to-female ratio was 3.8 : 1. Mean age (SD) of onset of psoriasis was higher in those with liver disease vs. those without [37.25 years (13.47) vs. 33.26 years (16.96), P < 0.001]. Patients with PsL, compared with those without liver disease, had a higher rate of dyslipidaemia (27.5% vs. 16.4%, P < 0.001), hypertension (33.9% vs. 23.7%, P = 0.002), diabetes mellitus (22.4% vs. 15.9%, P = 0.021) and HIV infection (5.3% vs. 0.4%, P < 0.001). Those with PsL were also more likely than those without liver disease to have severe disease [body surface area > 10% and/or Dermatology Life Quality Index (DLQI) > 10] (59.3% vs. 49.9%, P = 0.027), psoriatic arthropathy (21.1% vs. 13.0%, P = 0.002) and nail involvement (78.2% vs. 56.1%, P < 0.001). Also significantly higher in the group with PsL were the use of phototherapy (8.4% vs. 2.6%, P < 0.001), acitretin (7.3% vs. 2.8%, P < 0.001) and ciclosporin (3.0% vs. 0.7%, P < 0.001). Mean DLQI was similar in both groups [9.69 (7.20) vs. 9.62 (6.75), P = 0.88]. The frequency of patients with PsL in the MPR was 0.8%. Patients with PsL were more likely to be male, had a higher rate of comorbidities, severe disease, and nail and joint involvement than those without liver disease.

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