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Motor vehicle rollover and static stability: an exposure study
1Department of Epidemiology and Public Health, Yale University, New Haven, Conn., USA.
Objectives:
This study examined vehicle rollovers in terms of site-specific exposure and speeds of vehicles of varying stability.
Methods:
Fifty-one rollover sites in two states were visited at the same time of day and day of week as the rollover. A sample of vehicles moving in the same direction as the rollover were observed, and vehicle-specific data were obtained from identification numbers.
Results:
Low stability, exacerbated by the addition of passengers, increased the risk of rollover. Speed was not correlated with stability and is not a confounder.
Conclusions:
Rollovers could be substantially reduced if motor vehicles were manufactured with a static stability of 1.2 or greater.
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