Motorcyclist Is the Right-of-Way Violator: A Population-Based Study of Motorcycle Right-of-Way Crash in Taiwan

Table 2

Adjusted ORs (AORs) of approach-turn motorcycle-turning crashes, 2003-2014.

	B	S.E.	Wald Chi-Square	AOR(95%CI)_Stepwise
Motorcyclist gender
Male (ref.)	- - -	- - -	- - -	1.00
Female	0.35	0.04	84.15	1.40(1.29~1.52)
Driver age
<18	0.42	0.68	0.38	1.23(0.25~5.98)
18-40 (ref.)	- - -	- - -	- - -	1.00
41-64	-0.25	0.04	42.17	0.78(0.72~0.84)
65+	-0.63	0.12	28.88	0.49(0.39~0.63)
Motorcyclist age
<18	0.41	0.10	17.63	1.07(0.85~1.35)
18-40 (ref.)	- - -	- - -	- - -	1.00
41-64	0.72	0.04	283.70	1.73(1.58~1.89)
65+	1.62	0.07	615.37	4.31(3.75~4.96)
License
Motorcyclist
licensed (ref.)	- - -	- - -	- - -	1.00
Unlicensed	0.70	0.05	196.24	1.59(1.40~1.81)
Alcohol use
Driver
No (ref.)	- - -	- - -	- - -	1.00
Yes	0.30	0.14	4.42	1.45(1.07~1.95)
Motorcyclist
No (ref.)	- - -	- - -	- - -	1.00
Yes	0.84	0.11	58.43	2.36(1.87~2.98)
Occurring during
Daytime (ref.)	- - -	- - -	- - -	1.00
Evening/night	-0.38	0.04	91.43	0.68(0.63~0.75)
Engine size
251cc or above	-0.95	0.42	5.03	0.40(0.16~0.99)
51-250cc (ref.)	- - -	- - -	- - -	1.00
Up to 50cc	0.61	0.05	160.44	1.41(1.27~1.57)
Occurring on BU roadways (50km/h or below)
NBU	0.42	0.06	47.50	1.35(1.18~1.55)
BU (ref.)	- - -	- - -	- - -	1.00
Occurring on roadways with vertical or horizontal curvature
Horizontal	0.76	0.11	45.04	1.81(1.41~2.32)
Vertical	0.70	0.28	6.12	1.84(0.99~3.41)
Straight (ref.)	- - -	- - -	- - -	1.00
Occurring on weekends or weekdays
Weekday (ref.)	- - -	- - -	- - -	1.00
Weekend	0.10	0.04	6.25	1.09(0.995~1.19)

p<0.01; Hosmer and Lemeshow Goodness-of-Fit statistics: chi-square=6.4379 with 7 DF, yielding a p value of 0.5983.