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Table 1 Baseline characteristics of 267 hospitalized adult patients with community-acquired pneumonia

From: Etiology of community-acquired pneumonia and diagnostic yields of microbiological methods: a 3-year prospective study in Norway

Characteristics Patients
Age, years 66 (52–78)
Female/male 127 (48)/140 (52)
Nursing home resident 4 (1.5)
Patients with any comorbidity 172 (64)
 Atherosclerosisa 71 (27)
 COPD 60 (23)
 Immune disorderb 34 (13)
 Diabetes mellitus 33 (12)
 Renal disease 32 (12)
 Asthma 25 (9)
 Congestive heart failure 22 (8)
 Neurologicalc 19 (7)
 Dementia 15 (6)
 Active malignancy 13 (5)
 Innate or acquired immunodeficiencyd 11 (4)
 Liver disease 4 (1.5)
Active smoker 65 (24)
Travel historye 37 (15)
Pneumococcal vaccinef 25 (13)
Influenza vaccinef 66 (33)
Antibiotics prior to hospital admissionf 90 (36)
Immunosuppressive drugsg 37 (14)
  1. Note: Values are presented as No. (%) or median (25th–75th percentile). COPD, chronic obstructive pulmonary disease.
  2. aCoronary heart disease, cerebrovascular disease and/or peripheral artery disease.
  3. bEleven patients with rheumatoid arthritis, 1 patient with systemic lupus erythematosus, 6 patients with inflammatory bowel disease, 1 patient with autoimmune hepatitis, 3 patients with Sjogren’s disease, 14 patients with psoriasis (2 patients had 2 conditions).
  4. cCentral nervous disease and/or neuromuscular disease.
  5. dOne patient with antibody deficiency, 1 patient with HIV, 1 patient with heart transplant, 2 patients with kidney transplant, 1 patient with bone marrow transplant. Three patients had received chemotherapy and 2 had received radiation therapy within last 3 months.
  6. eTravel abroad past 4 weeks.
  7. fVaccinated against pneumococcus within previous 10 years; vaccinated against influenza virus within previous 12 months; antibiotics within previous 3 months.
  8. gImmunosuppressive drugs were defined as any use of systemic steroids, Azathioprine, TNF-alpha inhibitor, Cyclosporine, Cyclophosphamide and/or Methotrexate within previous 3 months.