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Construct Validity and Responsiveness of EQ-5D-3L in Patients With Rheumatic Disease

NCT06568029 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 77651

Last updated 2025-03-06

No results posted yet for this study

Summary

The aim of this study is to investigate the construct validity (convergent and known-groups) and responsiveness of EQ-5D-3L in patients with rheumatoid arthritis, polyarthritis, psoriatic arthritis, and ankylosing spondylitis. The study is based on retrospective registry data from the Swedish Rheumatology Registry (SRQ).

Conditions

Interventions

OTHER

Questionnaire

In the study, the validity and responsiveness of EQ-5D-3L will be assessed. The EQ-5D-3L measures HRQoL and consists of two parts. The first part contains five questions about mobility, daily activities, self-care, pain/discomfort, and anxiety/depression (EuroQoL 1990, Brooks 1996). Each question can be answered with no problem (1), some/moderate problem (2) unable to perform certain activities/having extreme problems (3). The answers can be summarized in an index value based on an existing preference-based value set. In this study, the EQ-5D-3L value set by Dolan (Dolan 1997) will be used for the main analyses and a Swedish experience-based value set in a sensitivity analysis (Burström, Sun et al. 2014). For the EQ-5D-3L index, 1 represents full health and 0 represents a value equal to being dead. EQ VAS measures the persons health today on a visual analogue scale (VAS) from 0 (worst imaginable health) to 100 (best imaginable health) (EuroQoL 1990, Brooks 1996).

Sponsors & Collaborators

Principal Investigators

  • Emelie Heintz, PhD · Karolinska Institutet

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-08-16
Primary Completion
2024-09-30
Completion
2024-09-30

Countries

  • Sweden

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06568029 on ClinicalTrials.gov