Antimicrobial Use and Serious Infections Among Patients With Psoriatic Arthritis After Initiating Tumor Necrosis Factor Inhibitors: A Nationwide Matched Cohort Study

T. Thrastardottir, PhD student, MPH, Faculty of Medicine, University of Iceland, Reykjavik, Iceland.

A.H. Bjornsson, MD, PhD student, Faculty of Medicine, University of Iceland, Reykjavik, Iceland, and Department of Rheumatology, Skåne University Hospital, Lund, Sweden.

A. Ogdie, MD, MSCE, Department of Epidemiology and Biostatistics, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Perelman School of Medicine, and Division of Rheumatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.

A. Hauksdottir, PhD, Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland.

S.Y. Kristinsson, PhD, Faculty of Medicine, University of Iceland, and Department of Hematology, Landspitali University Hospital, Reykjavik, Iceland.

B. Gudbjornsson, PhD, Faculty of Medicine, University of Iceland, and Centre for Rheumatology Research, Landspitali University Hospital of Iceland, Reykjavik, Iceland.

T.J. Love, PhD, Faculty of Medicine, University of Iceland, Reykjavik, Iceland, and Department of Science, Landspitali University Hospital of Iceland, Reykjavik, Iceland.