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Table 5 Mortality by body region injured, complications and mechanism of injury

From: Outcomes of polytrauma patients with diabetes mellitus

Injury/Complication

Present/Mechanism

Diabetes

P-values

Known PMC no diabetes

P-values

Definitely no PMC

P-values

  

Outcome

 

Outcome

 

Outcome

 
  

Alive

Dead

 

Alive

Dead

 

Alive

Dead

 

Head AIS 3+

Yes (95% CI)

74

58

<0.001

1161

374

<0.001

1163

273

<0.001

  

56.1 (47.6 - 64.5)

43.9 (35.5 - 52.4)

 

75.6 (13.2 - 17.3)

24.4 (22.2 - 26.5)

 

81 (3.7 - 6.3)

19 (17 - 21)

 

Abdo AIS 3+

Yes (95% CI)

19

6

0.466

373

128

0.002

523

76

0.944

  

76 (59.3 - 92.7)

24 (7.3 - 40.7)

 

74.5 (70.6 - 78.3)

25.5 (21.7 - 29.4)

 

87.3 (84.6 - 90)

12.7 (10 - 15.4)

 

Chest AIS 3+

Yes (95% CI)

112

55

0.911

1583

460

<0.001

1664

279

<0.001

  

67.1 (59.9 - 74.2)

32.9 (25.8 - 40.1)

 

77.5 (75.7 - 79.3)

22.5 (20.7 - 24.3)

 

85.6 (84.1 - 87.2)

14.4 (12.8 - 15.9)

 

Extremity AIS 3+

Yes

         

(95% CI)

84

24

0.003

1114

255

0.022

1174

136

<0.001

 
  

77.8 (69.9 - 85.6)

22.2 (14.4 - 30.1)

 

81.4 (79.3 - 83.4)

18.6 (16.6 - 20.7)

 

89.6 (88 - 91.3)

10.4 (8.7 - 12)

 

Any complication

Yes (95% CI)

69

38

0.422

956

281

0.007

1306

187

0.588

  

64.5 (55.4 - 73.6)

35.5 (26.4 - 44.6)

 

77.3 (74.9 - 79.6)

22.7 (20.4 - 25.1)

 

87.5 (85.8 - 89.2)

12.5 (10.8 - 14.2)

 

ARDS, DVT, PE

Yes (95% CI)

6

6

0.308

49

16

0.487

55

6

0.602

  

50 (21.7 - 78.3)

50 (21.7 - 78.3)

 

75.4 (64.9 - 85.9)

24.6 (14.1 - 35.1)

 

90.2 (82.7 - 97.6)

9.8 (2.4 - 17.3)

 

Pneumonia, wound infection, sepsis, UTI

Yes (95% CI)

18

5

0.357

181

45

0.913

153

15

0.145

  

78.3 (61.4 - 95.1)

21.7 (4.9 - 38.6)

 

80.1 (74.9 - 85.3)

19.9 (14.7 - 25.1)

 

91.1 (86.8 - 95.4)

8.9 (4.6 - 13.2)

 

Renal Failure

Yes

4

3

 

25

13

0.055

16

3

 
     

65.8%

34.2%

 

84.2%

15.8%

 
     

(50.7 - 80.9)

(19.1 - 49.3)

 

(60.4 - 96.6)a

(3.4 - 39.6)a

 

MI, arrhythmia, arrest

Yes

4

9

 

41

78

<0.001

14

40

<0.001

     

34.5%

65.5%

 

25.9%

74.1%

 
     

(25.9 - 43)

(57 - 74.1)

 

(14.2 - 37.6)

(62.4 - 85.8)

 

Injury mechanism

RTC (95% CI)

85

32

0.194a

1173

264

0.001

1608

235

0.787

  

72.6%

27.4%

 

81.6%

18.4%

 

87.2%

12.8%

 
  

(64.5 - 80.7)

(19.3 - 35.5)

 

(79.6 - 78.3)

(13.4 - 33.1)

 

(85.7 - 88.7)

(11.3 - 14.3)

 
 

High fall (95% CI)

31

21

 

513

160

 

311

47

 
  

59.6%

40.4%

 

76.2%

23.8%

 

86.9%

13.1%

 
  

(46.3 - 72.9)

(19.3 - 35.5)

 

(73 - 79.4)

(20.6 - 27)

 

(83.4 - 90.4)

(9.6 - 16.6)

 
 

Low fall (95% CI)

24

17

 

225

77

 

50

10

 
  

58.5%

41.5%

 

74.5%

25.5%

 

83.3%

16.7%

 
  

(43.4 - 73.6)

(26.4 - 56.6)

 

(69.6 - 79.4)

(20.6 - 30.4)

 

(73.9 - 91.9)

(7.3 - 26.1)

 
 

Other

8

2

 

159

41

 

162

26

 
     

79.5% (73.9 - 85.1)

20.5% (14.9 - 26.1)

 

86.2% (81.3 - 91.1)

13.8% (8.9 - 18.7)

 
 

Penetrating trauma

2

0

 

86

11

 

98

11

 
     

88.7% (82.4 - 95)

11.3% (5 - 17.6)

 

89.9% (84.2 - 95.6)

10.1% (4.4 - 15.8)

 
  1. Where appropriate values are presented in %s. a P-value for such analyses should not be interpreted due to the small number of patients. Abdo, abdomen; AIS, Abbreviated Injury Score; ARDS, acute respiratory distress syndrome; CI, confidence interval; DVT, deep vein thrombosis; MI, myocardial infarction; PE, pulmonary embolism; RTC, road traffic collision; UTI, urinary tract infection.
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