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Table 1 Comparison of clinical characteristics of patients with bacteremic K. pneumoniae and S. pneumoniae community-acquired pneumonia

From: Bacteremic community-acquired pneumonia due to Klebsiella pneumoniae: Clinical and microbiological characteristics in Taiwan, 2001-2008

Characteristic

K. pneumoniae

(n = 49)

No. (%)

S. pneumoniae

(n = 44)

No. (%)

p-value

Age, mean years ± SE

73 ± 14

76 ± 11

0.893

Male sex

39 (79.6)

39 (88.6)

0.236

Predisposing condition or risk factor

   

   Diabetes mellitus

17 (34.7)

11 (25)

0.309

   Malignancy

14 (28.6)

11 (25)

0.698

   Neurologic disorders

12 (24.5)

12 (27.3)

0.759

   Chronic kidney disease stage≧4

13 (26.5)

13 (29.5)

0.746

   Chronic lung diseases

23 (46.9)

21 (47.7)

0.939

   Liver cirrhosis

4 ( 8.2)

3 ( 6.8)

1.000

   Alcoholism

5 (10.2)

1 ( 2.3)

0.207

   Autoimmune disease

3 ( 6.1)

1 ( 2.3)

0.619

No underlying diseases

3 ( 6.1)

5 (11.4)

0.470

APACHE II score > 25

35 (71.4)

13 (29.5)

<0.001

Days of hospitalization

28 ± 24

21 ± 15

0.929

Initial presentation with septic shock

25 (51)

14 (31.8)

0.061

Initial presentation with respiratory failure

30 (61.2)

14 (31.8)

0.005

PSI Risk Class V

44 (89.8)

27 (61.4)

0.001

ICU admission

28 (57.1)

14 (31.8)

0.014

Concurrent lung abscess

3 ( 6.1)

0 ( 0)

0.244

Early mortality (deaths ≦ 48 hrs)

18 (36.7)

6 (13.6)

0.011

In-hospital mortality

27 (55.1)

12 (27.3)

0.007

  1. Values given as mean ± SD or No. of patients (%).APACHE, Acute Physiologic and Chronic Health Evaluation; PSI, Pneumonia Severity Index; ICU, intensive care unit.