Analyzing the Prevalence of and Factors Associated with Road Traffic Crashes (RTCs) among Motorcyclists in Bangladesh

Table 2

Influence of various factors related to motorcycle riders on the likelihood of road traffic crashes (logistic regression model).

Variable	Category	Coefficient	Std. Error	P value	OR	95% C.I. for OR
						Lower	Upper
Demographics
Age	<20	−6.318	2.971	0.033	0.002	0	0.609
	21–29	−2.135	1.502	0.155	0.118	0.006	2.248
	30–39	−2.352	1.488	0.114	0.095	0.005	1.759
	40–49	−2.86	1.54	0.063	0.057	0.003	1.172
	>50	Ref	Ref	Ref	Ref	Ref	Ref
Working history
Motorcycle ownership	Inherits from relatives	−0.879	0.344	0.011	0.415	0.211	0.815
	Bought with own money	Ref	Ref	Ref	Ref	Ref	Ref
Weekly working hours	<30 hours	0.702	0.74	0.342	2.019	0.473	8.605
	and <50 hours	1.414	0.672	0.035	4.113	1.102	15.347
	and <60 hours	0.969	0.705	0.169	2.635	0.662	10.483
	60 hours	Ref	Ref	Ref	Ref	Ref	Ref
Riders’ lifestyle and behaviours
Smoking status	Never	−0.664	0.379	0.08	0.515	0.245	1.081
	Sometimes	−1.258	0.514	0.014	0.284	0.104	0.779
	Regularly	Ref	Ref	Ref	Ref	Ref	Ref
Miscellaneous
Use helmet?	No	1.231	0.358	0.001	3.423	1.699	6.899
	Yes	Ref	Ref	Ref	Ref	Ref	Ref
Motorcycle’s brand	Honda	0.16	0.422	0.704	1.174	0.513	2.683
	Yamaha	0.096	0.441	0.827	1.101	0.464	2.61
	Suzuki	1.009	0.433	0.02	2.744	1.175	6.406
	Others	Ref	Ref	Ref	Ref	Ref	Ref
Have riding license?	No	−1.092	0.374	0.004	0.335	0.161	0.699
	Yes	Ref	Ref	Ref	Ref	Ref	Ref
Exceed speed limit?	No	−1.308	0.561	0.02	0.27	0.09	0.812
	Yes	Ref	Ref	Ref	Ref	Ref	Ref
Weather condition?	Sunny	0.198	0.404	0.625	1.219	0.552	2.691
	Rainy	1.132	0.51	0.026	3.102	1.142	8.423
	Misty	0.036	0.451	0.937	1.036	0.428	2.509
	Others	Ref	Ref	Ref	Ref	Ref	Ref
Constant		4.529	1.985	0.023	92.625

and .