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Table 1 Demographic characteristics of patients who visited the emergency department with two-wheeled vehicle-related injury

From: Epidemiology, injury characteristics and clinical outcomes of bicycle and motorcycle accidents in the under 20 population: South Korea

Variable

Bicycle

Motorcycle

Total

p-value

Number of injury cases

37,410

68.8%

16,932

31.2%

54,342

 

Age

11.6 ± 4.0

 

17.1 ± 1.9

 

13.3 ± 4.3

0.000

Sex, male

32,478

86.8%

16,076

94.9%

48,554

0.000

Season of injury

     

0.000

 Spring

11,373

30.4%

4,099

24.2%

15,472

 

 Summer

13,585

36.3%

4,793

28.3%

18,378

 

 Autumn

9,997

26.7%

4,724

27.9%

14,721

 

 Winter

2,455

6.6%

3,316

19.6%

5,771

 

Time of injury

     

0.000

 Morning (06:00 ~ 11:59)

1,379

3.7%

3,534

20.9%

4,913

 

 Afternoon (12:00 ~ 17:59)

4,279

11.4%

1,435

8.5%

5,714

 

 Night (18:00 ~ 23:59)

13,883

37.1%

3,484

20.6%

17,367

 

 Dawn (00:00 ~ 05:59)

17,869

47.8%

8,479

50.1%

26,348

 

Helmet use

     

0.000

 Yes

3,856

10.3%

7,903

46.7%

11,759

 

 No

33,554

89.7%

9,029

53.3%

42,583

 

Insurance type

     

0.0001

 National health care

26,893

71.9%

4,120

24.3%

31,013

 

 Traffic accident insurance

9,202

24.6%

11,792

69.6%

20,994

 

 Industrial accident insurance

2

0.0%

70

0.4%

72

 

 Medicaid

883

2.4%

441

2.6%

1,324

 

 Others

430

1.1%

509

3.0%

939

 

Means of visit

     

0.0001

 911

9,371

25.1%

10,499

62.0%

19,870

 

 hospital based ambulance

358

1.0%

595

3.5%

953

 

 Self-visit

27,456

73.4%

5,730

33.8%

33,186

 

 Others

255

0.7%

108

0.6%

363

 

Area

     

0.0001

 Urban area

27,561

73.7%

11,825

69.8%

39,386

 

  number of urban injuries /100,000 population

133.2

 

57.2

   

 Rural area

9,849

26.3%

5,107

30.2%

14,956

 

  number of rural injuries /100,000 population

111.2

 

57.6

   

Conciousness

     

0.0001

 Alert

37,254

99.6%

16,394

96.8%

53,648

 

 Altered

156

0.4%

538

3.2%

694

 

Systolic blood pressure (mmHg)

103.4 ± 16.8

 

126..4 ± 27.6

 

124.6 ± 43.9

0.0001

Diastolic blood pressure (mmHg)

68.8 ± 11.0

 

75.5 ± 19.4

 

74.9 ± 30.1

0.109

Pulse rate (beats/min)

86.0 ± 25.8

 

86.2 ± 19.8

 

84.4 ± 20.8

0.0001

Respiration rate (/min)

19.3 ± 6.6

 

19.2 ± 8.4

 

19.4 ± 6.0

0.606

Body temperature (℃)

36.1 ± 2.6

 

36.4 ± 3.4

 

36.4 ± 2.8

0.0001