The Preventive Effect of Head Injury by Helmet Type in Motorcycle Crashes: A Rural Korean Single-Center Observational Study
Table 3
Multiple linear regression analysis of head abbreviated injury scale.
95% confidence intervals
value
Lower
Upper
Helmet type
Unhelmeted
Reference
Full face helmet
−0.368
−0.559
−0.177
<0.001
Open face helmet
−0.235
−0.459
−0.010
0.040
Half coverage helmet
−0.204
−0.449
0.040
0.101
Sex
Male
Reference
Female
0.185
−0.106
0.475
0.213
Age (years)
0.017
0.013
0.020
<0.001
Rider role
Passenger
Reference
Driver
0.185
−0.106
0.475
0.213
Riding speed (Km/h)
0.014
0.010
0.018
<0.001
Alcohol consumption
No
Reference
Yes
0.382
0.147
0.617
0.001
Mechanism of crash
MV collision with MC
Reference
MC collision with stationary obstacle
0.322
0.016
0.628
0.039
No object
0.038
−0.176
0.253
0.725
MC collision with moving obstacle
0.108
−0.084
0.300
0.272
MV: motor vehicle; MC: motorcycle. A multiple linear regression analysis was performed based on helmet type, sex, age, occupant role, riding speed, alcohol, and mechanism of crash.
