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Table 6 ICD-10 coded head injuries and helmet use and relative risk of injury

From: Crash characteristics and patterns of injury among hospitalized motorised two-wheeled vehicle users in urban India

ICD-10 Head Injury*

Helmet worn (n = 74)

Helmet not worn (n = 304)

Not worn relative risk (RR) of injury to worn

 

N (%)

N (%)

RR

95% confidence interval

Superficial

22 (29.7%)

106 (34.9%)

1.17

0.80–1.72

Open wound

16 (20.3%)

118 (38.8%)

1.91

1.19–3.07

Fracture

6 (6.8%)

33 (10.5%)

1.56

0.63–3.86

Intracranial

2 (2.7%)

41 (13.5%)

4.99

1.23–20.1

Crush

1 (1.4%)

6 (2.0%)

1.46

0.17–11.9

Traumatic amputation

0 (0%)

2 (0.7%)

-

-

Other unspecified

5 (6.8%)

31 (10.2%)

1.51

0.61–3.74

  1. *ICD: International statistical classification of diseases and related health problems Version 10