Reliability and Construct Validity of the Physician's Global Assessment of Lung Disease in Systemic Juvenile Idiopathic Arthritis–Associated Lung Disease

Key Points

• The study aims to evaluate the reliability and construct validity of the Physician's Global Assessment of Lung Disease in the context of Systemic Juvenile Idiopathic Arthritis.
• Initial validation of PGALD was conducted to assess its psychometric properties.
• Different parameters of SJIA-related lung disease were included in the evaluation.
• Further studies are suggested to explore the responsiveness of PGALD over time.
• PGALD demonstrated acceptable levels of construct validity.
• Reliability of the assessment tool was validated, indicating consistent results across evaluations.