Traffic collision
Sociological factors

Studies in United States have shown that poor people have a greater risk of dying in a car crash than people who are well-off. Car deaths are also higher in poorer states.

Similar studies in France or Israel have shown the same results. This may be due to working-class people having less access to secure equipment in cars, having older cars which are less protected against crash, and needing to cover more distance to go to work each day.
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