Table 2—

Multivariate logistic regression analysis of factors predictive of purulent sputum in clinically stable bronchiectasis

FactorAdjusted OR (95% CI)p-value
FEV1 <80% pred4.9 (1.7–14.3)0.004
Pseudomonas aeruginosa5.5 (1.5–20.8)0.01
Haemophilus influenzae5.8 (1.6–21.2)0.007
Other potentially pathogenic micro-organisms10.9 (2.3–50.3)0.002
Varicose or cystic bronchiectasis8.7 (2.8–26.7)<0.0001
Diagnosed aged <45 yrs3.1 (1.04–9.5)0.04
  • FEV1: forced expiratory volume in 1 s; % pred: % predicted.