Table 3

Multivariate Cox regression analysis of predictors of mortality among COPD population

BSEDfSig.HR95% CI for HR
Basal mMRC dyspnoea scale0.3480.10210.001*1.421.161.73
FEV1% predicted−0.0970.08110.2310.910.781.06
Pseudomonas aeruginosa infection0.4640.16510.005*1.591.152.20
Blood eosinophils ≥300 cells/uL−0.3400.16610.040*0.710.520.99
ICS use−0.5930.43510.1720.550.241.30
ICS dose†0.2830.11010.010*1.331.071.65
  • *Significant p≤0.05.

  • †Fluticasone propionate equivalents (daily dose).

  • COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 s; ICS, inhaled corticosteroids; mMRC, modified medical research council.