title: Motor vehicle trauma in northeastern Ohio. I: Incidence and outcome by age, sex, and road-use category.
abstract: Hospital emergency department visits for motor vehicle trauma occurring in a midwestern metropolitan region (Cleveland and Lorain-Elyria, Ohio Standard Metropolitan Statistical Areas; 2.2 million population) were analyzed to determine the incidence and outcome by age, sex, and road-use category. A 50% incidence sample (n = 20,752) of motor vehicle trauma events to residents of this region was identified from the emergency department records of 41 participating hospitals for a one-year period, 1977. These hospitals accounted for 98% of all emergency department cases in the region. The annual motor vehicle trauma incidence rate per 100,000 population was 1,871. The highest annual incidence rate (4,462) was for ages 20-24; the lowest rates were for infants under one year (837) and for the elderly over 74 years (667). Incidence rate rank-ordered road-use categories were as follows: passenger car occupant, motorized cycle rider, other enclosed vehicle occupant, pedestrian, and pedal cyclist. Above age 4, age-specific male incidence rates significantly exceeded female incidence rates for most road-use categories. There were 80 admissions and 7 fatalities per 1,000 motor vehicle trauma incidence cases. Case-admission ratios were highest for pedestrians (266), riders of motorized cycles (184), and pedal cyclists (115); they were lowest for occupants of partially or fully enclosed vehicles (65). Case-fatality ratios per 1,000 cases were also highest for pedestrians (43) and riders of motorized cycles (11). Male case-fatality ratios exceeded female ratios for each road-use category in nearly all age groups, and male case-admission ratios exceeded those for females ages 10-54. For ages 75 and over, the admission ratios and fatality ratios were nearly twice as high as in any other age group.
mesh_terms: D000063:Accidents, Traffic; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004636:Emergency Service, Hospital; D004812:Epidemiologic Methods; D005260:Female; D006760:Hospitalization; D006801:Humans; D007223:Infant; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D009820:Ohio; D012737:Sex Factors; D014505:Urban Population; D014947:Wounds and Injuries / Q000453:epidemiology* / Q000401:mortality