We aim at investigation the impact of chronic air pollution exposure on non-cystic fibrosis bronchiectasis outcome.

• Patient files will be search for time of death and cause of death.
• Other variables will be collected: bacterial culture results, therapy, gender, age, etc.
• These data will be linked with pollution data: trafic load, distance to major road, etc.

Inclusion Criteria:

• HRCT diagnosis of bronchiectasis
• recurrent infections or chronic sputum production
• patients between 18 and 65 years old.

Exclusion Criteria:

• Cystic Fibrosis
• Tumoral disease
• Traction bronchiectasis due to interstitial lung disease
• patients older than 65 years or younger than 18 years at recruitment
• COPD

Patients with a HRCT diagnosis of bronchiectasis and do not have a diagnosis of cystic fibrosis. They also need to have typical bronchiectatic disease (recurrent infections and sputum).