Qualitative validation of the FACIT-Fatigue scale in systemic lupus erythematosus

Validation of the Functional Assessment of Chronic Illness Therapy-Fatigue Scale in Patients with Moderately to Severely Active Systemic Lupus Erythematosus, Participating in a Clinical Trial

(2011) J.-S. LAI et al.   JOURNAL OF RHEUMATOLOGY

Content Validity—Establishing and Reporting the Evidence in Newly Developed Patient-Reported Outcomes (PRO) Instruments for Medical Product Evaluation: ISPOR PRO Good Research Practices Task Force Report: Part 1—Eliciting Concepts for a New PRO Instrument

(2011) Donald L. Patrick et al.   VALUE IN HEALTH

Measures of fatigue: Bristol Rheumatoid Arthritis Fatigue Multi-Dimensional Questionnaire (BRAF MDQ), Bristol Rheumatoid Arthritis Fatigue Numerical Rating Scales (BRAF NRS) for Severity, Effect, and Coping, Chalder Fatigue Questionnaire (CFQ), Checklist

(2011) Sarah Hewlett et al.   ARTHRITIS CARE & RESEARCH

Interference with activities due to pain and fatigue: accuracy of ratings across different reporting periods

(2010) Joan E. Broderick et al.   QUALITY OF LIFE RESEARCH

EQ-5D and SF-36 Quality of Life Measures in Systemic Lupus Erythematosus: Comparisons with Rheumatoid Arthritis, Noninflammatory Rheumatic Disorders, and Fibromyalgia

(2009) F. WOLFE et al.   JOURNAL OF RHEUMATOLOGY

Qualitative research and content validity: developing best practices based on science and experience

(2009) Meryl Brod et al.   QUALITY OF LIFE RESEARCH

The accuracy of pain and fatigue items across different reporting periods

(2008) Joan E. Broderick et al.   PAIN