Table 1– Patient characteristics on admission for the entire cohort defined by a hospitalisation for chronic obstructive pulmonary disease or pneumonia and for those who died in hospital
Entire cohortIn-hospital deaths
Patients n323 89532 414
Age at cohort entry years mean±sd75.1±9.178.7±8.6
Cohort entry after year 200048.447.9
Prior hospitalisations
Day of admission
Modified chronic disease score#
 First quartile25.024.7
 Second quartile25.323.4
 Third quartile24.724.7
 Fourth quartile25.024.7
  • Data are presented as % unless otherwise stated. #: at least one dispensed prescription, among the 94% of patients with available medication information in the year prior to cohort entry.