Antilock braking system effectiveness in prevention of road traffic crashes in Iran

BMC Public Health

Table 3 Association of ABS with RTCs due to brake failure, controlling the effect of potential confounders, reduced model

Variable	Coefficient	SE	95% Confidence interval	P value
ABS	−0.55	0.19	(−0.92 - −0.18)	0.004
Driver’s age (years)	−0.02	0.01	(−0.04 - −0.01)	0.003
DDT (hours)	0.10	0.03	(0.05 - 0.16)	<0.001
Car age (years)	0.09	0.04	(0.01 - 0.17)	0.045
Model constant	−1.96	0.36	--	<0.001

SE: Standard Error.
Goodness of fit statistics: Deviance = 1133.9; degree of freedom (df) =4080; Value/df = 0.28.
Likelihood ratio Chi Square = 29.1; df = 3; p-value < 0.001.

ISSN: 1471-2458