Fodproblemer og leddegigt


Foot problems in people with rheumatoid arthritis, prevalence and validation of a patient-reported outcome measure



June 2019


The aim of this study was twofold:

  1. To study the validity and reliability of the SEFAS in people with RA and foot problems (non- surgical referral).
  2. To study the prevalence of self-reported foot problems in people with RA attending a specialist rheumatology clinic in Denmark.


300 patients with an RA diagnosis and over the age of 18 years attending the Danish Hospital for Rheumatic diseases will be consecutively enrolled in the study.

Validity and reliability of the SEFAS will be studied according to the COSMIN guidelines, and in this project, face, content, construct and structural validity together with internal consistency and test-retest reliability will be assessed. The prevalence of foot problems will be studied in a cross-sectional study. Physician reported data (swollen/tender 12-joint foot count, DAS28, medication), and patient reported data (pain, physical function, global health and SEFAS) are assessed during a clinical visit to study the prevalence of foot problems.

Interne samarbejdspartnere 

Kim Hørslev-Petersen, Kirsten Frøhlich, Randi Petersen

Patientrepræsentant: Sonja Schulz

Eksterne samarbejdspartnere 

Morten Bilde Simonsen, M.Sc., Sport sciences, Department of Health Science and Technology, Aalborg University, Aalborg, and Centre for Clinical Research, North Denmark Regional Hospital

Maria C Cöster, MD, PhD, Department of Orthopedics and Clinical Sciences, SUS Malmö, Sweden

Carsten Jensen, PhD,  Department of Orthopaedic Surgery and Traumatology, Kolding Hospital a Part of Hospital Lillebaelt, and Department of Regional Health Research, University of Southern Denmark, Odense


Ann Bremander, PT, PhD,  Danish Hospital for Rheumatic Diseases, University of Southern Denmark, Sønderborg and Department of Regional Health Research, University of Southern Denmark, Odense