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Table 3 Nature of Road Traffic Injury Cases (N = 1,656) by age groups, Japan, 2003

From: Clinical consequences of road traffic injuries among the elderly in Japan

Group

1

2

3

Age (years)

18 - 64

65 - 74

75 +

Cases

1459

119

78

Anatomic region (%)

   

   Neck

45.4 *

18.5

18.9 ***

   Head

16.6

21.0

30.8 ***

   Chest

9.9 *

28.6 **

10.3

   Abdominal

6.1

8.4

9.0

   Upper limb

10.6

5.9

11.5

   Lower limb

11.5

17.7

20.5

Outcome (% mortality)

0.9

2.5

6.4***

Hospital admission (%)

16.5 *

47.1

48.7 ***

ICU admission (%)

4.7 *

16.8

17.9 ***

Treatment (%)

   

   None

86.4 *

68.9

70.5 ***

   Minor surgery

7.3

12.6

16.7 ***

   Elective surgery

5 *

14.3

7.7

   Emergency surgery

1.4

4.2

5.1

Injury Severity Score (ISS) (%)

   

   Slight(ISS ≤ 3)

82.3 *

52.9

52.6 ***

   Moderate(ISS 4 - 8)

10.4

14.3

19.2

   Severe(≥ 9)

7.3 *

32.8

19.2 ***

Admission days (%)

   

   Return home

83.5 *

52.9

51.3 ***

   Less than 7 days

4.0

6.7

10.3

   for 7 - 13 days

3.1

6.7

9.0

   for 14 - 27 days

3.9

12.5

6.5

   more than 28 days

5.6 *

21.0

23.1***

  1. * group 1 is significantly different (P ≤ 0.01) from group 2
  2. ** group 2 is significantly different (P ≤ 0.01) from group 3
  3. *** group 3 is significantly different (P ≤ 0.01) from group 1