determinant of road traffic crash fatalities in iran: a longitudinal econometric analysis

background: injuries and deaths from road traffic crashes are one of the main public health problems throughout the world. this study aimed to identify determinants of fatality traffic accident in iran for the twenty-span year from 1991 to 2011. methods: a time series analysis (1991-2011) was used to examine the effects of some of the key explanatory factors (gdp per capita, number of doctors per 10,000 populations, degree of urbanization, unemployment rate and motorization rate) on deaths from road traffic in iran. in order to examine long- and short-run effects of variables, we employed autoregressive distributed lag (ardl) approach and error correction method (ecm). the data for the study was obtained from the central bank of iran (cbi), iranian statistical center (isc) and legal medical organizations (lmo). results: gdp per capita, doctor per 10,000 populations, degree of urbanization and motorization rate had a significant impact on fatality from road traffic in iran. we did not observe any short- and long-term effects of the unemployment rate on fatality from road traffic. conclusion: gdp per capita, doctor per 10,000 populations, degree of urbanization and motorization rate were identified as main determinant of fatality from road traffic accidents in iran. we hope the results of the current study enable health policy-makers to understand better the factors affecting deaths from road traffic accidents in the country.