Society of Diabetic Nephropathy Prevention Journal of Preventive Epidemiology 2476-3934 5 1 2020 01 01 Incidence of psoriasis in patients with active systemic lupus erythematosus e07 e07 10.34172/jpe.2020.07 EN Mansoor Karimifar https://orcid.org/0000-0003-4688-991X Hamidreza Mousavi https://orcid.org/0000-0002-2163-7890 Ali Safaei https://orcid.org/0000-0001-8718-6650 Ali Hajihashemi https://orcid.org/0000-0002-9203-5707 Ziba Farajzadegan https://orcid.org/0000-0001-8548-2843 Fariba Iraji https://orcid.org/0000-0002-0206-0352 Journal Article 10.34172/jpe.2020.07 2020 07 11 2020 08 24 Introduction: Concomitant onset of active systemic lupus erythematosus (SLE) and psoriasis is rare; however, due to the common skin involvement in both and exacerbation of psoriasis with antimalarial medications used for SLE, it is crucial to investigate the concomitant occurrence of both diseases. Objectives: The present study aims to investigate the incidence of psoriasis in people with active SLE. Patients and Methods: The present cross-sectional study was performed on 148 patients with active SLE from 2015 to 2017. Lupus activity was evaluated based on systemic lupus erythematosus disease activity index-2K (SLEDAI-2K), and then, the incidence of psoriasis in patients was investigated. Patients’ demographic information was recorded in the relevant checklist. Results: The mean score of SLEDAI-2K was 14.10±19.77. The duration of SLE was significantly associated with the SLEDAI-2K score (P=0.001, r = 0.294). Psoriasis incidence was remarkably correlated with the gender of patients with SLE (P=0.019). An insignificant association was found between the coincidences of SLE with psoriasis considering the factors, including age, SLE duration, and mean SLEDAI-2K score. Conclusion: Patients’ mean age, SLE duration, and disease activity score were not correlated with concomitant psoriasis among SLE patients; however, we found that males were more prone to concomitant SLE and psoriasis.