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Table 1 Characteristics of national trauma registry patients aged over 18 (n = 11,398)a

From: Combining the new injury severity score with an anatomical polytrauma injury variable predicts mortality better than the new injury severity score and the injury severity score: a retrospective cohort study

 

All

Age 18–44

Age 45–54

Age 55–64

Age 65–69

Age 70–74

Age 75–84

Age 85 and above

Study Population

11,398

3366

1260

1851

755

850

1982

1334

Male

7149 (62.7)

2788 (82.8)

1013 (80.4)

1223 (66.1)

442 (58.5)

444 (52.2)

836 (42.2)

403 (30.2)

Age mean (SD)

58.4 (21.6)

30.7 (7.5)

49.7 (2.9)

59.9 (2.9)

66.8 (1.5)

72.1 (1.4)

79.5 (2.9)

89.6 (3.9)

NISS mean (SD)

19.6 (12.8)

21.1 (12.5)

20.2 (12.7)

18.7 (13.1)

19.5 (13.3)

19.2 (12.9)

18.6 (13.0)

18.3 (12.5)

ISS mean (SD)

14.8 (8.1)

16.0 (9.3)

15.0 (8.3)

14.1 (8.0)

14.4 (7.8)

14.2 (7.3)

14.0 (7.0)

14.0 (6.7)

Polytrauma (Anatomical Definition)

1114 (9.8)

534 (15.9)

155 (12.3)

157 (8.5)

47 (6.2)

44 (5.2)

98 (4.9)

79 (5.9)

Polytrauma (Anatomical and one of: Systolic Blood Pressure (SBP) ≤ 90 mmHg or Glasgow Coma Scale (GCS) ≤ 8 or age 70 and above)

1073 (9.4)

512 (15.2)

142 (11.3)

151 (8.2)

47 (6.2)

44 (5.2)

98 (4.9)

79 (5.9)

Revised Trauma Score (RTS) mean (SD)

7.6 (0.9)

7.4 (1.1)

7.5 (1.0)

7.6 (0.8)

7.6 (0.7)

7.6 (0.8)

7.6 (0.6)

7.7 (0.6)

Systolic Blood Pressure (SBP) ≤ 90 mmHg

266 (2.3)

130 (3.9)

46 (3.7)

42 (2.3)

9 (1.2)

8 (0.9)

17 (0.9)

14 (1.0)

Glasgow Coma Scale (GCS) ≤ 8

758 (6.7)

311 (9.2)

102 (8.1)

119 (6.4)

36 (4.8)

44 (5.2)

85 (4.3)

61 (4.6)

Abbreviated Injury Score of 3 or moreb

 

Head and Neck

4975 (43.6)

1280 (38.0)

512 (40.6)

741 (40.0)

375 (49.7)

447 (52.6)

964 (48.6)

656 (49.2)

Face

94 (0.8)

62 (1.8)

10 (0.8)

12 (0.6)

5 (0.7)

2 (0.2)

3 (0.2)

0 (0.0)

Thoracic

2135 (18.7)

817 (24.3)

343 (24.2)

361 (19.5)

113 (15.0)

108 (12.7)

250 (12.6)

143 (10.7)

Abdominal

940 (8.2)

369 (11.0)

117 (9.3)

114 (6.2)

49 (6.5)

50 (5.9)

137 (6.9)

104 (7.8)

Extremity

3990 (35.0)

1183 (35.1)

395 (31.3)

749 (40.5)

240 (31.8)

265 (31.2)

689 (34.8)

469 (35.2)

External

10 (0.1)

7 (0.2)

1 (0.1)

2 (0.1)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

Charlson Comorbidity Index (CCI)

 

CCI 0

8285 (72.7)

3074 (91.3)

1053 (83.6)

1391 (75.1)

488 (64.4)

518 (60.9)

1061 (53.5)

700 (52.5)

CCI 1

1978 (17.4)

208 (6.2)

130 (10.3)

296 (16.0)

174 (23.0)

212 (24.9)

586 (29.6)

372 (27.9)

CCI 2

664 (5.8)

11 (0.3)

30 (2.4)

97 (5.2)

55 (7.3)

73 (8.6)

215 (10.8)

183 (13.7)

CCI 3

223 (2.0)

2 (0.1)

13 (1.0)

43 (2.3)

18 (2.4)

26 (3.1)

77 (3.9)

44 (3.3)

CCI of 4 and above

104 (0.9)

3 (0.1)

2 (0.2)

10 (0.5)

13 (1.7)

12 (1.4)

33 (1.7)

31 (2.3)

30-day Mortality

783 (6.9)

164 (4.9)

67 (5.3)

103 (5.6)

49 (6.5)

58 (6.8)

183 (9.2)

159 (11.9)

In-Hospital Mortality

167 (5.0)

72 (5.7)

116 (6.3)

54 (7.2)

62 (7.3)

183 (9.2)

149 (11.2)

803 (7.0)

Mechanism of Injury

 

Motor Vehicle Injuries

3372 (29.6)

1,828 (54.3)

533 (42.3)

545 (29.4)

163 (21.6)

146 (17.2)

130 (6.6)

27 (2.0)

Falls

7166 (62.9)

1,023 (30.4)

595 (47.2)

1,194 (64.5)

562 (74.4)

674 (79.3)

1,824 (92.0)

1,294 (97.0)

Assault

212 (1.9)

132 (3.9)

36 (2.9)

22 (1.2)

7 (0.9)

8 (0.9)

7 (0.4)

0 (0.0)

Others

648 (5.7)

383 (11.4)

96 (7.6)

90 (4.9)

23 (3.1)

22 (2.6)

21 (1.1)

13 (1.0)

  1. aPercentages in brackets (%) unless otherwise noted. SD = standard deviation
  2. b% of study population, not adding up to 100 % due to patients with polytrauma