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Table 1 Comparison of variables of culture-positive and culture-negative septic shock

From: Characteristics and outcomes of patients with culture negative septic shock compared with patients with culture positive septic shock: a retrospective cohort study

Variable

   

Sex

  

0.3725

   Female

2,565 (42.6)

1,157 (43.6)

 

   Male

3,454 (57.4)

1,494 (56.4)

 

Age

  

<0.0001

   Mean

62.0 (16.1)

63.9 (16.3)

 

   Median

64.0

67.0

 

   Range

16 to 102

16 to 101

 

Admit source

  

0.0567

   Surgery

86 (3.2)

53 (4.3)

 

   ER

2,245 (84.1)

990 (80.5)

 

   Medical

334 (12.5)

180 (14.7)

 

   TxER

3 (0.1)

3 (0.2)

 

   TxICU

2 (0.1)

2 (0.2)

 

   TxWard

0 (0)

1 (0.1)

 

Survival

   

   15

3,785 (62.9)

1,598 (60.3)

0.0213

   30

3,275 (54.4)

1,399 (52.8)

0.1585

   90

2,906 (48.3)

1,283 (48.4)

0.9204

   ICU

3,583 (59.5)

1,545 (58.3)

0.2760

   Overall

2,895 (48.1)

1,276 (48.1)

0.9760

ICU LOS

  

<0.0001

   Missing (%)

0

0

 

   Mean

11.0 (13.4)

9.8 (13.7)

 

   Median

7.0

6.0

 

   Range

1.0 to 215.0

1.0 to 314.0

 

Hospital LOS

  

<0.0001

   Missing (%)

0

0

 

   Mean

26.3 (34.1)

23.1 (31.1)

 

   Median

15.0

12.2

 

   Range

0.5 to 370.0

0.3 to 314.0

 

APACHE

  

0.4450

   Missing (%)

375 (6.2)

179 (6.8)

 

   Mean

25.7 (8.1)

25.7 (8.3)

 

   Median

25.0

25.0

 

   Range

4 to 70

6 to 54

 

Days to extubation

  

0.2414

   Mean

6.5 (9.5)

6.2 (9.2)

 

   Median

4.0

3.0

 

   Range

0.0 to 117.0

0.0 to 100.0

 

Days on pressors

  

0.1927

   Missing (%)

1,878

892

 

   Mean

3.6 (3.7)

3.3 (3.2)

 

   Median

3.0

2.0

 

   Range

0.0 to 54.0

0.0 to 34.0

 

Temperature

  

<0.0001

   Mean

37.6 (1.7)

37.4 (1.7)

 

   Median

38.0

36.2

 

   Range

27.3 to 42.7

30.4 to 42.7

 

   <36°C

869 (15.3)

473 (18.9)

<0.0001

   >38°C

2,707 (47.7)

1,075 (42.9)

<0.0001

   >38.3°C

2,264 (39.9)

878 (35.0)

<0.0001

Infection source

  

<0.0001

   Community

3,491 (58.0)

1,677 (63.3)

 

   Nosocomial

2,528 (42.0)

974 (36.7)

 

Lactate - baseline

  

0.2377

   Missing (%)

5,328 (88.5)

2,328 (87.8)

 

   Mean

4.3 (3.8)

4.4 (4.5)

 

   Median

3.1

2.8

 

   Range

0.3 to 26.4

0.3 to 26.7

 

Lactate - 6 hours

  

0.2214

   Missing (%)

5,132 (85.3)

2,204 (83.1)

 

   Mean

4.1 (3.7)

4.0 (3.8)

 

   Median

2.8

2.6

 

   Range

0.1 to 25.8

0.4 to 23.1

 

Lactate - 24 hours

  

0.4919

   Missing (%)

5,164 (85.8)

2,236 (84.3)

 

   Mean

3.7 (4.1)

4.1 (5.0)

 

   Median

2.4

2.3

 

   Range

0.3 to 54.4

0.2 to 37.6

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