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Table 2 Matching criteria and clinical characteristics of the study population

From: Thrombocytopenia in critically ill surgical patients: a case-control study evaluating attributable mortality and transfusion requirements

 

Cases

Control patients

 

Parameter

(n = 36)

(n = 36)

P

Matching criteria

   

     Primary diagnosis

  

0.99

        Septic shock [n (%)]

12 (33)

12 (33)

 

        Postoperative bleeding, gastrointestinal hemorrhage, trauma [n (%)]

14 (39)

13 (36)

 

        Acute respiratory failure [n (%)]

3 (8)

3 (8)

 

        Complication during post partum [n (%)]

2 (6)

2 (6)

 

        Cardiac failure [n (%)]

1 (3)

2 (6)

 

        Miscellaneous [n (%)]*

4 (11)

4 (11)

 

    Duration of stay in ICU (days)

8.3± 8.4

6.5± 6.4

0.29

    APACHE II score (points)

22.7± 8.6

20.9± 8.3

0.35

    Age (years)

60.7± 19.1

60.6± 17.4

0.97

Characteristics

   

    Sex (male/female)

20/16

22/14

0.63

    Severity of underlying disease

  

0.81

        Fatal or ultimately fatal [n (%)]

19 (53)

18 (50)

 

        Nonfatal [n (%)]

17 (47)

18 (50)

 

    Previous health status

  

0.80

        No functional or moderate limitation [n (%)]

25 (69)

26 (72)

 

        Serious limitation or bedridden or institutionalized [n (%)]

11 (31)

10 (28)

 

    SAPS II score (points)

49.7 ± 18.9

46.7 ± 21.9

0.54

    Expected mortality (%)

46.0

39.1

    ODIN model on admission

  

        Cardiac failure [n (%)]

22 (61)

21 (58)

 

        Respiratory failure [n (%)]

30 (83)

30 (83)

 

        Haematologic failure [n (%)]

20 (55)

13 (36)

 

        Neurologic failure [n (%)]

6 (17)

10 (28)

 

        Hepatic failure [n (%)]

1 (3)

2 (5)

 

        Presence of infection [n (%)]

19 (53)

16 (44)

 

Total no. of organ system failure

2.8 ± 1.2

2.9 ± 1.2

0.60

  1. *Miscellaneous included two cases of nosocomialpneumonia, one case of acute pancreatitis, and one case of undetermined shock.†Calculated from the equation proposed by La Gall et al. [18] APACHE, Acute Physiology and Chronic Health Evaluation;ODIN, organ dysfunstion and/or infection; ICU, intensive care unit; SAP,Simplified Acute Physiology Score.