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Table 3 Possible predictors of therapeutic angiography.

From: Selection of patients with severe pelvic fracture for early angiography remains controversial

Possible predictors

Patients

Sensitivity

(95% CI)

Specificity

(95% CI)

Positive predictive value

(95% CI)

Negative predictive value

(95% CI)

Likelihood

ratio

P value

 

with therapeutic angiography

no therapeutic angiography

      

Age

        

   Age ≥ 55

3/20

20/86

0.85

0.23

0.20

0.87

1.1

0.55

   

(0.62-0.97)

(0.15-0.34)

(0.12-0.31)

(0.66-0.97)

  

Initial systolic BP

        

   < 90

3/20

7/86

0.15

0.92

0.30

0.83

1.84

0.39

   

(0.03-0.38)

(0.84-0.97)

(0.07-0.65)

(0.73-0.89)

  

Initial BE

        

   ≤ -4

15/20

24/83

0.75

0.71

0.38

0.92

2.59

0.0002

   

(0.51-0.91)

(0.60-0.80)

(0.23-0.55)

(0.83-0.97)

  

   ≤ -6

8/20

14/83

0.40

0.83

0.36

0.85

2.37

0.03

   

(0.19-0.64)

(0.73-0.90)

(0.17-0.59)

(0.76-0.92)

  

GCS

        

   ≤ 13

10/20

26/86

0.50

0.70

0.28

0.85

1.65

0.12

   

(0.27-0.73)

(0.59-0.79)

(0.14-0.45)

(0.75-0.93)

  

   ≤ 8

5/20

14/86

0.25

0.84

0.26

0.83

1.54

0.35

   

(0.09-0.49)

(0.74-0.91)

(0.09-0.51)

(0.73-0.90)

  

PC per hour

        

   0.5 ≤

19/20

10/86

0.95

0.88

0.65

0.99

8.17

< 0.0001

   

(0.75-1.0)

(0.80-0.94)

(0.46-0.82)

(0.93-1.0)

  

   1 ≤

15/20

7/86

0.75

0.92

0.68

0.94

9.2

< 0.0001

   

(0.51-0.91)

(0.84-0.97)

(0.45-0.86)

(0.87-0.98)

  

   1.5 ≤

13/20

3/86

0.65

0.96

0.81

0.92

18.63

< 0.0001

   

(0.41-0.85)

(0.90-0.99)

(0.54-0.96)

(0.85-0.97)

  

   2 ≤

11/20

3/86

0.55

0.97

0.79

0.90

15.77

< 0.0001

   

(0.32-0.77)

(0.90-0.99)

(0.49-0.95)

(0.82-0.95)

  

Pelvic AIS

        

   4-5

20/20

54/86

1.0

0.37

0.27

1.0

1.59

0.0004

   

(0.83-1.0)

(0.27-0.48)

(0.17-0.39)

(0.89-1.0)

  

   5

11/20

11/86

0.55

0.87

0.50

0.89

4.3

0.0001

   

(0.32-0.77)

(0.78-0.93)

(0.28-0.72)

(0.80-0.95)

  

ISS

        

   25 ≤

17/20

61/86

0.85

0.29

0.22

0.89

1.20

0.27

   

(0.62-0.97)

(0.20-0.40)

(0.13-0.33)

(0.72-0.98)

  

   50 ≤

6/20

12/86

0.30

0.86

0.33

0.84

2.15

0.10

   

(0.12-0.54)

(0.77-0.93)

(0.13-0.59)

(0.75-0.91)

  
  1. BP: Blood Pressure; BE: base excess on presentation; GCS: Glasgow Coma Scale on presentation; PC: packed red blood cell units; AIS: Abbreviated Injury Score