Abstract
Psoriasis is a chronic, inflammatory skin disease that is often accompanied by multiple comorbidities. Obesity is considered an independent risk factor for the development of psoriasis. However, most of the related data are derived from epidemiological studies conducted in the United States of America and Europe. This study aimed to compare the clinical characteristics of patients with psoriasis who are overweight/obese and patients with psoriasis with normal weight in China. We reviewed the medical records of 208 patients with psoriasis. Based on their body mass index (BMI), the patients were divided into two groups: patients with psoriasis who were overweight/obese and patients with psoriasis with normal weight. The most patients enrolled in this study were men (77.40%). Patients with psoriasis who were overweight/obese had a higher mean age, longer disease duration, and significantly higher Psoriasis Area and Severity Index (PASI) values (P=0.032). Additionally, the incidence of fatty liver, hyperlipidemia, hyperuricemia, and abnormal liver function was higher among patients with psoriasis who were overweight/obese (P<0.05). Linear regression analysis revealed a linear relationship between PASI values and BMI (P=0.016). Moreover, patients with psoriasis who were overweight/obese had significantly higher levels of serum alanine transaminase (ALT), aspartate transaminase (AST), uric acid (UC), total cholesterol (TC), low-density lipoprotein (LDL), and fasting plasma glucose (FPG) (P<0.05) and lower serum high-density lipoprotein (HDL) levels and absolute lymphocyte count (ALC) (P<0.05). Patients with psoriasis who are overweight/obese have more severe psoriatic lesions and metabolic comorbidities. Detailed assessment of the BMI of patients with psoriasis revealed that weight loss may be necessary for patients who are overweight/obese to reduce the risk of metabolic disorders.
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