Why more male pedestrians die in vehicle-pedestrian collisions than females: a decompositional analysis
Published Date:Nov 29 2012
Source:Inj Prev. 19(4):227-231.
Pubmed Central ID:PMC3715558
Funding:R01 AA018313/AA/NIAAA NIH HHS/United States
R01 HD074594/HD/NICHD NIH HHS/United States
R01AA18313/AA/NIAAA NIH HHS/United States
R21CE001820/CE/NCIPC CDC HHS/United States
R49CE001170/CE/NCIPC CDC HHS/United States
Pedestrians account for a third of the 1.2 million traffic fatalities annually worldwide, and males are overrepresented. We examined the factors that contribute to this male-female discrepancy: walking exposure (kilometers walked per person-year), vehicle-pedestrian collision risk (number of collisions per kilometers walked), and vehicle-pedestrian collision case fatality rate (number of deaths per collision).
The decomposition method quantifies the relative contributions of individual factors to death rate ratios among groups. The male-female ratio of pedestrian death rates can be expressed as the product of three component ratios: walking exposure, collision risk, and case fatality rate. Data sources included the 2008–2009 U.S. Fatality Analysis Reporting System, General Estimates System, National Household Travel Survey, and population estimates.
Pedestrians age 5 and older.
Main outcome measures
death rate per person-year, kilometers walked per person-year, collisions per kilometers walked, and deaths per collision by sex.
The pedestrian death rate per person-year for males was 2.3 times that for females. This ratio of male to female rates can be expressed as the product of three component ratios: 0.995 for walking exposure, 1.191 for collision risk, and 1.976 for case fatality rate. The relative contributions of these components were 1%, 20% and 79%, respectively.
The majority of the male-female discrepancy in 2008–2009 pedestrian deaths in the U.S. is attributed to a higher fatality per collision rate among male pedestrians.
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