Background
Methods
Subjects
Data procedure
Statistical analysis
Quality control
Results
Subject | The injured n (%) | Sample size n | Prevalence of injury (%) | |
---|---|---|---|---|
Gender†
| ||||
Male | 357 (60.7) | 1009 | 35.4 | |
Female | 231 (39.3) | 1066 | 21.7 | |
Total | 588 (100) | 2075 | 28.3 | |
Agea
| ||||
11-13 | 63 (10.7) | 227 | 27.8 | |
14-16 | 497 (84.5) | 1745 | 28.5 | |
17-19 | 28 (4.8) | 103 | 27.2 | |
Total | 588 (100) | 2075 | 28.3 |
Cyclist-related factors
Basic knowledge of and attitude towards bicycle injury prevention
Whether bicycle injuries occurred | ||||
---|---|---|---|---|
Yes (n) | No (n) | Prevalence of injury (%) |
P
| |
Opinion on necessity of setting up traffic rules | 0.004 | |||
Highly necessary | 504 | 1340 | 27.3 | |
Moderately necessary | 46 | 101 | 31.3 | |
Little necessary | 18 | 22 | 45.0 | |
Not at all | 20 | 24 | 45.5 | |
Recognition of traffic markings “for vehicles only” | 0.509 | |||
No | 425 | 1096 | 27.9 | |
Yes | 163 | 391 | 29.4 | |
Running a red light
*
| <0.01 | |||
No | 545 | 1439 | 27.5 | |
Yes | 43 | 48 | 47.3 | |
Opinion on whether bicycle injury is preventable | 0.009 | |||
Yes | 341 | 925 | 26.9 | |
No | 63 | 101 | 38.4 | |
Uncertain | 184 | 461 | 28.5 | |
Willingness to learn about prevention of bicycle injuries | 0.020 | |||
No | 93 | 169 | 35.5 | |
Yes | 366 | 990 | 27.0 | |
No idea | 129 | 328 | 28.2 |
Lifestyle and bicycle riding behaviors
Have you ever had these behaviors and habits in the past 12 months | Whether bicycle injuries occurred | |||
---|---|---|---|---|
Yes (n) | No (n) | Prevalence of injury (%) |
P
| |
Coffee or strong tea consumption | <0.01 | |||
Yes | 373 | 805 | 31.7 | |
NO | 215 | 682 | 24.0 | |
Inattentive riding | <0.01 | |||
Yes | 446 | 976 | 31.4 | |
No | 142 | 511 | 21.7 | |
Riding speed (km/h) | <0.01 | |||
≥20 | 81 | 21 | 79.4 | |
>10 to <20 | 435 | 1408 | 23.6 | |
≤10 | 72 | 58 | 55.4 | |
Use of communication devices (like mobile phones) while riding | <0.01 | |||
Yes | 101 | 141 | 41.7 | |
No | 487 | 1346 | 26.6 | |
Riding with fatigue | <0.01 | |||
Yes | 221 | 328 | 40.3 | |
No | 367 | 1159 | 24.0 | |
Riding in bad mood | <0.01 | |||
Yes | 344 | 582 | 37.1 | |
NO | 244 | 905 | 21.2 |
Bicycle-related factors
Whether bicycle injuries occurred | ||||
---|---|---|---|---|
Yes (n) | No (n) | Prevalence of injury (%) |
P
| |
Periodic maintenance of bicycle | 0.593 | |||
Yes | 51 | 118 | 30.2 | |
No | 537 | 1368 | 28.2 | |
Bicycle age | 0.398 | |||
<3 months | 73 | 151 | 32.6 | |
3 ~ 6 months | 72 | 167 | 30.1 | |
6 ~ 12 months | 91 | 242 | 27.3 | |
>12 months | 352 | 927 | 27.5 |
Road-related factors
Whether bicycle injuries occurred | ||||
---|---|---|---|---|
Yes (n) | No (n) | Prevalence of injury (%) |
P
| |
Types of lanes | <0.01 | |||
Motor laneβ
| 50 | 65 | 43.5 | |
Non-motor laneθ
| 194 | 212 | 47.8 | |
Combination-type road**
| 334 | 1210 | 22.1 | |
Road situation | <0.01 | |||
Intact | 362 | 1189 | 23.3 | |
Non-intact††
| 226 | 298 | 43.1 | |
Road surface | <0.01 | |||
Dry | 261 | 1131 | 18.8 | |
Ponding | 182 | 209 | 46.5 | |
Humid | 135 | 147 | 47.9 | |
Road materials | <0.01 | |||
Cement | 335 | 1235 | 21.3 | |
Sand and rocks | 217 | 212 | 50.6 | |
Asphalt | 36 | 40 | 47.4 |
Logistic regression analysis on bicycle traffic injury among middle school students
Variable factor |
P
| OR | 95%CI |
---|---|---|---|
Inattentive riding | |||
No | - | 1.0 | Reference |
Yes | 0.009 | 1.599 | 1.122 ~ 2.278 |
Use of communication devices (like mobile phones) while riding | |||
No | - | 1.0 | Reference |
Yes | 0.051 | 0.605 | 0.366 ~ 1.002 |
Riding with fatigue | |||
Yes | - | 1.0 | Reference |
No | 0.003 | 1.714 | 1.196 ~ 2.458 |
Road situation | |||
Non-intact | <0.01 | 2.261 | 1.632 ~ 2.339 |
Intact | - | 1.0 | Reference |
Types of lanes | |||
Non-motor lane | 0.005 | 1.648 | 1.161 ~ 2.339 |
Motor lane | <0.01 | 2.414 | 1.474 ~ 3.954 |
Combination-type road | - | 1.0 | Reference |