Table 2

Factors associated with exacerbations and all-cause mortality at multivariate analysis

FactorOR (95% CI)P values
At least one exacerbation/year
 ACT score0.87 (0.82 to 0.93)0.000
 Number of baseline exacerbations*1.28 (1.04 to 1.57)0.018
At least three exacerbations/year
 ACT score0.93 (0.88 to 0.99)0.021
 Number of baseline exacerbations*1.35 (1.11 to 1.66)0.005
All-cause mortality
 Recent FEV1*0.30 (0.14 to 0.65)0.002
  • *Log transformed because of skewness, interpretation should be done at the log scale. Note: analysis considers only the first year of follow-up.

  • ACT, Asthma Control Test.