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Table 2 Odds ratios of each variable for mortality among patients with blunt renal trauma

From: Trends and outcomes of blunt renal trauma management: a nationwide cohort study in Japan

 

Mortality

%

n/N

Adjusted OR (95% CI)

P value

Age group

 < 20 years

5.3

(32/607)

Reference

–

 20–64 years

8.5

(171/2017)

1.45 (0.96 to 2.23)

0.084

 ≥ 65 years

14.5

(134/926)

3.36 (2.16 to 5.34)

< 0.001

Sex

 Male

8.8

(233/2635)

0.96 (0.72 to 1.28)

0.759

 Female

11.4

(104/915)

Reference

–

Mechanism

 Car accident

8.1

(45/556)

Reference

–

 Motorcycle accident

9.3

(74/797)

1.42 (0.92 to 2.21)

0.120

 Bicycle accident

9.6

(26/271)

1.51 (0.86 to 2.62)

0.147

 Pedestrian accident

19.8

(70/353)

1.94 (1.26 to 3.07)

0.004

 Fall from height

14.1

(87/616)

1.91 (1.25 to 2.96)

0.003

 Fall down stairs

3.1

(10/323)

0.55 (0.25 to 1.13)

0.122

 Fall on the ground

2.3

(6/265)

0.66 (0.24 to 1.58)

0.384

 Sports-related injury

0.7

(1/145)

0.47 (0.03 to 2.32)

0.463

 Others

8.0

(18/224)

1.31 (0.69 to 2.41)

0.389

Shock on arrival

 (+)

31.4

(127/405)

4.02 (3.01 to 5.34)

< 0.001

 (−)

6.7

(210/3145)

Reference

–

Concomitant injury

 Head/neck

  (+)

16.9

(226/1341)

3.14 (2.39 to 4.14)

< 0.001

  (−)

5.0

(111/2209)

Reference

–

 Thorax

  (+)

11.8

(271/2298)

1.33 (0.97 to 1.86)

0.084

  (−)

5.3

(66/1252)

Reference

–

 Pelvis/lower-extremity

  (+)

15.1

(211/1399)

1.59 (1.21 to 2.08)

0.001

  (−)

5.9

(126/2151)

Reference

–

Concomitant intra-abdominal organ injury

 Liver

  (+)

12.9

(125/972)

1.68 (1.27 to 2.21)

< 0.001

  (−)

8.2

(212/2578)

Reference

–

 Spleen

  (+)

12.5

(82/655)

1.45 (1.06 to 1.97)

0.018

  (−)

8.8

(255/2,895)

Reference

–

 Pancreas

    

  (+)

11.5

(9/78)

0.66 (0.28 to 1.41)

0.307

  (−)

9.4

(328/3472)

Reference

–

 Gastrointestinal tract

  (+)

18.4

(18/98)

1.90 (1.01 to 3.55)

0.046

  (−)

9.2

(319/3452)

Reference

–

 Isolated renal trauma

  (+)

1.4

(7/509)

0.66 (0.25 to 1.50)

0.348

  (−)

10.9

(330/3041)

Reference

–

AAST grade

 I

8.5

(119/1408)

Reference

–

 II

7.8

(28/358)

0.89 (0.55 to 1.40)

0.633

 III

7.8

(81/1039)

1.42 (1.02 to 1.96)

0.036

 IV

11.1

(66/596)

2.16 (1.48 to 3.13)

< 0.001

 V

28.9

(43/149)

5.55 (3.22 to 9.49)

< 0.001

Management

 Emergency abdominal angiography

8.7

(103/1189)

0.70 (0.53 to 0.93)

0.015

  (+)

9.9

(234/2361)

Reference

–

  (−)

    

 Nephrectomy

  (+)

23.5

(32/136)

0.97 (0.54 to 1.68)

0.905

  (−)

8.9

(305/3414)

Reference

–

3-year increase in time period

–

–

0.83 (0.75 to 0.93)

0.001

  1. OR odds ratio, CI confidence interval, ISS Injury Severity Score, AAST American Association for the Surgery of Trauma