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.
Category
Total,
Helmeted,
Unhelmeted,
value
(%)
(%)
(%)
Sex
Male
650 (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 ± 23.6
42.9 ± 23.1
37.8 ± 24.2
0.006
Rider role
Driver
681 (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 ± 19.9
39.8 ± 20.7
38.4 ± 17.9
0.371
Alcohol consumption before the crash
Yes
92 (12.9)
45 (8.8)
47 (19.8)
<0.001
No
648 (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 object
209 (28.0)
118 (23.4)
90 (38.0)
MC collision with moving obstacle
305 (40.9)
223 (43.8)
82 (34.6)
MV collision with MC
167 (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.