RA-ILD Screening Questionnaire: A Patient-Based Case-Control and Cohort Study

Supplementary material for a study developing a 26-item patient questionnaire to screen for rheumatoid arthritis-associated interstitial lung disease (RA-ILD). The dataset likely contains questionnaire scores and clinical data from 174 ILD patients, 67 healthy controls, and 105 RA patients, as described in the associated research paper. The data was published on figshare under a CC-BY-4.0 license by 'figshare admin karger' and last updated in May 2026.

Use Cases

• Validate a patient-based screening tool for RA-ILD based on the described 26-item symptom questionnaire.
• Analyze the internal consistency and discriminatory power of clinical questionnaires based on reported McDonald's omega and Cohen's d statistics.
• Assess the sensitivity and specificity of a screening cut-off score for RA-ILD based on the reported ROC analysis.
• Study the relationship between patient-reported symptoms and objective clinical measures like lung ultrasound and pulmonary function tests.

Strengths

• Includes data from a multicenter cohort of 174 ILD patients and 67 controls, with detailed demographic statistics (e.g., mean age 62 ± 13, 46% female).
• Reports high internal consistency for the questionnaire with a McDonald's omega of 0.93.
• Validation was performed on a separate cohort of 105 RA patients with specific clinical criteria for RA-ILD.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The primary data file is a 533.8 KB PDF, suggesting the underlying structured data may not be directly accessible.

Provenance

Source

figshare

Collection Method

Data was collected via a clinical study involving item analysis, principal component analysis, and validation in patient cohorts, as described in the methods.

Freshness

Last updated 2026-05-13 11:55:12; freshness should be verified.