OBJECTIVE: To detect temporal case clustering in patients with pityriasis rosea in different geographic locations. DESIGN: Regression analysis of dates on which 1379 patients were diagnosed as having pityriasis rosea in 3 different geographic locations. The control data consisted of dates of diagnosis of patients with psoriasis in the same settings. SETTING: Dermatology clinics in Kuwait, Minnesota, and Diyarbakir, Turkey.Patients Patients with pityriasis rosea and psoriasis seeking care in the clinics. RESULTS: Three significant positive clusters (P = .005, P =.001, and P =.01, respectively) and 1 significant negative cluster (P<.001) were detected in these series of patients. No cluster was detected in 2 corresponding series of patients with psoriasis in Kuwait and Turkey. CONCLUSION: Temporal case clustering exists in pityriasis rosea.
OBJECTIVE: To detect temporal case clustering in patients with pityriasis rosea in different geographic locations. DESIGN: Regression analysis of dates on which 1379 patients were diagnosed as having pityriasis rosea in 3 different geographic locations. The control data consisted of dates of diagnosis of patients with psoriasis in the same settings. SETTING: Dermatology clinics in Kuwait, Minnesota, and Diyarbakir, Turkey.PatientsPatients with pityriasis rosea and psoriasis seeking care in the clinics. RESULTS: Three significant positive clusters (P = .005, P =.001, and P =.01, respectively) and 1 significant negative cluster (P<.001) were detected in these series of patients. No cluster was detected in 2 corresponding series of patients with psoriasis in Kuwait and Turkey. CONCLUSION: Temporal case clustering exists in pityriasis rosea.
Authors: Jose Contreras-Ruiz; Sandra Peternel; Carlos Jiménez Gutiérrez; Ivana Culav-Koscak; Ludovic Reveiz; Maria de Lourdes Silbermann-Reynoso Journal: Cochrane Database Syst Rev Date: 2019-10-30
Authors: Lena Wenger-Oehn; Thomas Graier; Christina Ambros-Rudolph; Robert Müllegger; Christina Bittighofer; Peter Wolf; Angelika Hofer Journal: J Dtsch Dermatol Ges Date: 2022-05-26 Impact factor: 5.231