Severity classification and prognosis in hospitalized elderly patients with community-acquired pneumonia

PSI is a useful method for estimating the prognosis in elderly CAP patients. On the other hand, the A-DROP score may be inadequate in terms of judging the disease severity in these patients. With regard to the severity of pneumonia in elderly patients, we should consider not only the A-DROP score but also the underlying diseases such as malignancy, cardiac failure, cerebrovascular disease, liver disease, or renal disease.