Table 2

Mortality following an AECOPD according to the number of exacerbations in the previous year

Frequency of AECOPD in the 12 months prior to an AECOPDNumber of deathsPerson-yearsMortality rate and 95% CI (per 1000 person-years)HR and 95% CI*
0–30 days
 0303581522 (466 to 584)(ref.)
 1164338485 (416 to 565)0.97 (0.80 to 1.18)
 279179441 (354 to 550)0.90 (0.70 to 1.15)
 3+86180477 (386 to 589)1.03 (0.81 to 1.32)
31 and up to 365 days
 09335830160 (150 to 171)(ref.)
 13591573228 (206 to 253)1.47 (1.30 to 1.66)
 21465205281 (239 to 331)1.89 (1.59 to 2.25)
 3+63266237 (185 to 303)1.59 (1.23 to 2.05)
  • Northern Denmark, 2005–2009.

  • *Adjusted for age (as a continuous variable), sex and comorbidities.

  • AECOPD, acute exacerbation of chronic obstructive pulmonary disease.