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Table 1 Tile classification and interobserver reliability for pelvic fractures (n = 228)

From: Association of pelvic fracture patterns, pelvic binder use and arterial angio-embolization with transfusion requirements and mortality rates; a 7-year retrospective cohort study

Categories and sub-categories

Spontaneous agreement

n (%)

158 (69)

Classified by consensus

n (%)

70 (31)

p

Main

1st order

2nd order

(k = 0.83)

(k = 0.75)

(k = 0.70)

A (n = 52)

  

46 (89)

6 (11)

0.001

 

A1 (n = 2)

 

2 (100)

0

0.47

  

A1.1 (n = 1)

1 (100)

0

1

  

A1.2 (n = 1)

1 (100)

0

1

 

A2 (n = 41)

 

36 (88)

5 (12)

0.002

  

A2.1 (n = 18)

15 (83)

3 (17)

0.13

  

A2.2 (n = 17)

15 (88)

2 (12)

0.06

  

A2.3 (n = 6)

6 (100)

0

0.11

 

A3 (n = 9)

 

8 (89)

1 (11)

0.28

  

A3.1 (n = 1)

1 (100)

0

1

  

A3.2 (n = 5)

4 (80)

1 (20)

0.51

  

A3.3 (n = 3)

3 (100)

0

0.55

B (n = 71)

  

44 (62)

27 (38)

0.12

 

B1 (n = 5)

 

2 (40)

3 (60)

0.33

  

B1.1 (n = 3)

2 (67)

1 (33)

1

  

B1.2 (n = 2)

0

2 (100)

0.09

 

B2 (n = 56)

 

41 (73)

15 (27)

0.51

  

B2.1 (n = 45)

33 (73)

12 (27)

0.59

  

B2.2 (n = 11)

8 (73)

3 (27)

1

 

B3 (n = 8)

 

1 (13)

7 (87)

0.001

  

B3.1 (n = 1)

0

1 (100)

0.31

  

B3.3 (n = 7)

1 (14)

6 (86)

0.004

 

Bxa (n = 2)

 

0

2 (100)

0.09

C (n = 105)

  

68 (65)

37 (35)

0.2

 

C1 (n = 65)

 

45 (69)

20 (31)

1

  

C1.1 (n = 1)

1 (100)

0

1

  

C1.2 (n = 22)

13 (59)

9 (41)

0.33

  

C1.3 (n = 42)

31 (74)

11 (26)

0.58

 

C2 (n = 14)

 

7 (50)

7 (50)

0.13

  

C2.2 (n = 8)

4 (50)

4 (50)

0.25

  

C2.3 (n = 6)

3 (50)

3 (50)

0.37

 

C3 (n = 25)

 

16 (64)

9 (36)

0.65

  

C3.1 (n = 5)

2 (40)

3 (60)

0.33

  

C3.2 (n = 2)

2 (100)

0

0.57

  

C3.3 (n = 18)

12 (67)

6 (33)

0.49

 

Cxa (n = 1)

 

0

1 (100)

0.3

  1. Fisher’s exact test was used. Unless stated otherwise, data are displayed as numbers (%). k = Cohen’s Kappa
  2. afracture type not further specified