Defining severity of disease and prognosis
In contrast with other respiratory diseases like COPD, pulmonary fibrosis and pneumonia, which have well established disease severity scores,.[69-71] assessment of disease severity is relatively new concept in bronchiectasis. A combination of clinical, radiological and microbiological features can be used to assess severity and members of EMBARC recently described a scoring system which has been validated in 1310 patients across 5 European bronchiectasis centres. The bronchiectasis severity index was found to give excellent predictions of mortality and hospital admissions and was also predictive of exacerbations and quality of life giving a broad assessment of disease severity.