“…The following data were collected from medical charts: age, sex, residence immediately before admission (e.g., home, hospital, nursing home, group home), comorbidity, past history, lifestyle history, blood test results, bacteriological test, the antimicrobial agent used in the initial treatment, outcome at the time of admission, or death (death within 30 days or termination of hospitalization due to death). Patients were classified into two groups, those with NHCAP [2] and those with CAP [14], according to the definitions of the JRS. A patient with NHCAP is defined as 1) an extended care unit resident or a nursing home resident; 2) a patient who was discharged from a hospital within 90 days; 3) an elderly patient or one with physical disabilities requiring nursing care; or 4) a patient who continues to receive endovascular treatment (treatments involving blood dialysis, antimicrobial agents, chemotherapy, or immunosuppressive agents) on an outpatient basis.…”