It's Not JUST Idiopathic Pulmonary Fibrosis Study

Inclusion Criteria

• Male or female aged ≥ 18 years old
• Able and willing to give written informed consent
• Recently diagnosed [defined as diagnostic CT scan or surgical lung biopsy (ifapplicable) >1st May 2017]
• An MDT diagnosis of fibrotic interstitial lung disease (reticulation, traction +/-honeycombing) Sub Groups
• Rheumatoid arthritis (rheumatologist diagnosed with anti-CCP antibodies and/orRheumatoid Factor positive)
• Asbestosis (appropriate occupational history and radiological evidence of asbestosexposure)
• Chronic HP in accordance with consensus criteria (appropriate exposure history,radiological features +/- avian and fungal precipitins)
• Unclassifiable fibrotic lung disease (fibrotic lung disease otherwise unclassifiabledespite extensive clinical and radiological examination)
• IPF in accordance with consensus criteria (ATS/ERS/JRS/ALAT guidelines) as controls

Exclusion Criteria:

• Participating in an interventional clinic trial
• Asymptomatic Interstitial Lung Abnormalities (ILA) and normal lung function.
• Change in clinical phenotype from initial radiological diagnosis to screening
• Acute Hypersensitivity Pneumonitis.
• Participants who do not possess a smartphone or have a valid email address (necessaryfor the home FVC readings)