Research Article

The Preventive Effect of Head Injury by Helmet Type in Motorcycle Crashes: A Rural Korean Single-Center Observational Study

Table 1

Comparison of general characteristics between helmeted group and unhelmeted group in motorcycle crashes.

CategoryTotal, Helmeted, Unhelmeted, value
(%) (%) (%)

Sex
 Male650 (87.1)455 (89.4)195 (82.3)0.007
 Female 96 (12.9) 54 (10.6) 42 (17.7)
Age, mean ± SD (years)41.3 ± 23.642.9 ± 23.137.8 ± 24.20.006
Rider role
 Driver681 (91.3)496 (97.4)185 (78.1)<0.001
 Passenger 65 (8.7) 13 (2.6) 52 (21.9)
Riding speed, mean ± SD (Km/h)39.4 ± 19.939.8 ± 20.738.4 ± 17.90.371
Alcohol consumption before the crash
 Yes 92 (12.9) 45 (8.8) 47 (19.8)<0.001
 No648 (86.9)462 (90.8)186 (78.5)
 Unknown 6 (0.8) 2 (0.4) 4 (1.7)
Mechanism of crash
 MC collision with stationary obstacle 60 (8.0) 40 (7.9) 20 (8.4)<0.001
 No object209 (28.0)118 (23.4) 90 (38.0)
 MC collision with moving obstacle305 (40.9)223 (43.8) 82 (34.6)
 MV collision with MC167 (22.4)126 (24.8) 41 (17.3)
 Unknown 5 (0.7) 1 (0.2) 4 (1.7)

SD: standard deviation; MC: motorcycle; and MV: motor vehicle.
Categorical variables between helmeted group and unhelmeted group were compared using the chi-square test, and continuous variables were compared using Student’s -test.