The COPD cohort consisted of 40,414 adults. During the observation period, 3149
patients (8%) experienced CAP, producing an incidence rate of 22.4 (95% CI 21.7e23.2) per
1000 person years. 92% of patients with pneumonia diagnosis had suffered only one episode.
Multivariate modelling of pneumonia descriptors in COPD indicate that age over 65 years
was significantly associated with increased risk of CAP. Other independent risk factors