NCFBE Etiology | Prevalence | % of pts with at least 1 hospitalization during 2013 | p- value |
Idiopathic | 38% | 13% | 0.56 |
Post-infective | 28% | 20% | 0.52 |
COPD | 17% | 38% | 0.04 |
Immunodeficiency | 4% | 17% | 0.57 |
Connective tissue disease | 3% | 0% | 0.34 |
IBD | 2% | 0% | 0.59 |
Severe asthma | 2% | 20% | 0.67 |
Others | 6% | 27% | 0.5 |