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Table 1 Baseline characteristics and outcomes

From: Infections of respiratory or abdominal origin in ICU patients: what are the differences?

Characteristic

All patients

(n = 542)

Abdominal infection

(n = 162)

Respiratory infection

(n = 380)

P-value

Age, years

63.2 ± 15.7

65.1 ± 15.0

62.4 ± 16.0

0.11

Male

314 (58.4%)

89 (55.3%)

225 (59.7%)

0.34

SAPS II score

43.6 ± 17.1

43.1 ± 17.7

43.9 ± 16.8

0.42

SOFA score

6.5 ± 4.1

6.4 ± 4.0

6.6 ± 4.2

0.65

Co-morbidities

    

   Cancer

79 (14.6%)

34 (21.0%)

45 (11.8%)

0.006

   Hematologic cancer

26 (4.8%)

2 (1.2%)

24 (6.3%)

0.01

   COPD

107 (19.7%)

19 (11.7%)

88 (23.2%)

0.002

   Cirrhosis

26 (4.8%)

10 (6.2%)

16 (4.2%)

0.32

   HIV and/or AIDS

7 (1.3%)

0

7 (1.8%)

0.10

   Heart failure

42 (7.7%)

8 (4.9%)

34 (8.9%)

0.11

   Diabetes

35 (6.5%)

9 (5.6%)

26 (6.8%)

0.57

Admission category

    

   Medical

333 (61.4%)

32 (19.8%)

301 (79.2%)

< 0.001

   Surgical

209 (38.6%)

130 (80.2%)

79 (20.8%)

< 0.001

Elective

82 (15.1%)

35 (21.6%)

47 (12.4%)

 

Emergency

127 (23.4%)

95 (58.6%)

32 (8.4%)

 

Source of admission

   

< 0.001

   ER/Ambulance

118 (24.0%)

17 (11.6%)

101 (29.3%)

 

   Hospital floor

191 (38.9%)

40 (27.4%)

151 (43.8%)

 

   OR/Recovery

126 (25.7%)

82 (56.2%)

44 (12.8%)

 

   Hospital other

56 (11.4%)

7 (4.8%)

49 (14.2%)

 

Admission diagnosis

   

< 0.001

   Monitoring

15 (2.8%)

7 (4.5%)

8 (2.1%)

 

   Neurologic

51 (9.5%)

3 (1.9%)

48 (12.7%)

 

   Respiratory

229 (42.8%)

15 (9.6%)

214 (56.6%)

 

   Cardiovascular

123 (23.0%)

53 (33.8%)

70 (18.5%)

 

   Renal

14 (2.6%)

9 (5.7%)

5 (1.3%)

 

   Digestive/liver

73 (13.6%)

63 (40.1%)

10 (2.6%)

 

   Trauma

16 (3.0%)

4 (2.5%)

12 (3.2%)

 

   Others

14 (2.7%)

3 (2.0%)

11 (2.9%)

 

Sepsis syndromes

    

   Severe sepsis

391 (72.1%)

113 (69.8%)

278 (73.2%)

0.41

   Septic shock

177 (32.7%)

65 (40.1%)

112 (29.5%)

0.01

Length of ICU stay (days)

6 (3 - 13)

6 (2 - 15)

6 (3 - 13)

0.95

Length of hospital stay (days)

21 (10 - 44)

27 (13 - 48)

20 (10 - 41)

0.02

ICU mortality

157 (29.0%)

47 (29.0%)

110 (28.9%)

0.98

Hospital mortality

204 (37.6%)

60 (37.5%)

144 (38.1%)

0.89

  1. Data are expressed as mean ± standard deviation, number (percentage), or median (interquartile range). AIDS: acquired immune deficiency syndrome; COPD: chronic obstructive pulmonary disease; ER: emergency room; HIV: human immunodeficiency virus; ICU: intensive care unit; OR: operating room; SAPS II: Simplified Acute Physiology Score; SOFA: Sequential Organ Failure Assessment