“…Several studies have found significant differences in vehicle accident rates between males and females (Laberge-Nadeau, Maag, & Bourbeau, 1992;Mannering, 1993;Massie, Campbell, & Williams, 1995), and others have found significant differences in male and female accident injury severities (Evans, 1988;Abdel-Aty & Abdelwahab, 2001;Evans, 2001;Ulfarsson & Mannering, 2004;Dellinger 2005). The results of these research efforts suggest there are significant behavioral and physiological differences between male and female drivers that influence the severity of vehicle accidents and that these differences may change as drivers age.…”