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  • Title: Outcomes and costs among seniors requiring hospitalization for community-acquired pneumonia in Alberta.
    Author: Carriere KC, Jin Y, Marrie TJ, Predy G, Johnson DH.
    Journal: J Am Geriatr Soc; 2004 Jan; 52(1):31-8. PubMed ID: 14687312.
    Abstract:
    OBJECTIVES: To determine the age-specific rates of hospital discharge, cost per day, and overall in-hospital 1- and 4-year mortality for seniors who required hospitalization for the treatment of community-acquired pneumonia (CAP). DESIGN: Retrospective analysis of two administrative health service databases. SETTING: Province of Alberta, Canada. PARTICIPANTS: Residents of Alberta aged 18 and older. MEASUREMENTS: Hospital abstracts and vital statistics from April 1, 1994, to March 31, 1999, were analyzed, and mortality and cost outcomes statistically modeled by regression. RESULTS: There were 8,500 annual hospital discharges for CAP costing more than $40 million per year. The overall in-hospital all-cause mortality rate was 12%, and the 1-year mortality rate was 26%. The mean age of pneumonia cases increased (P<.000) from 62.8 in 1994/1995 to 67.2 in 1998/1999. The proportion of hospital discharges in those aged 85 and older was 13% in 1994/1995, increasing to 18% in 1998/1999 (P<.000). The age-specific hospital discharge rate and length of hospitalization increased with age. After adjustment for other factors using modeling, it was found that the relative risk (RR) of in-hospital and 1-year mortality increased with age, the RR of using special medical care and higher-than-average daily hospital cost decreased with age, and the RR of greater-than-average daily hospital cost was not associated with an increase in comorbidity. Total costs per hospital stay were similar in patients aged 85 and older to those in patients aged 65 to 74, despite a one-third longer length of stay, which was consistent with reduced use of special medical care in those aged 85 and older. CONCLUSION: The increased use of hospital resources for CAP in the setting of an aging population may have been partially avoided because of limitations in care provided for seniors aged 85 and older.
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