title: A demographic profile of new traumatic spinal cord injuries: change and stability over 30 years.
abstract: OBJECTIVE
  To evaluate epidemiologic trends in new spinal cord injuries (SCIs) in the United States over 3 decades.
  
  
  METHODS
  Consecutive case series.
  
  
  METHODS
  Model Spinal Cord Injury Systems (MSCIS) facilities.
  
  
  METHODS
  Persons (N=30,532) admitted to MSCIS facilities within 365 days of injury between 1973 and 2003, and enrolled in the National Spinal Cord Injury Database.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Data were collected at MSCIS admission and rehabilitation discharge. Variables included age, gender, race and ethnic group, year of injury, and level and extent of injury. Specific etiologies were grouped as motor vehicle collisions (MVCs), violence, falls, sports, and other. Demographic and injury severity trends were analyzed by year of injury groupings according to decades (1973-1979, 1980-1989, 1990-1999, 2000-2003.) Chi-square tests assessed statistical significance. One-way analysis of variance compared mean ages.
  
  
  RESULTS
  The male/female ratio remained fairly stable at 4:1, but the percentage of women increased slightly over time, especially from MVC etiologies ( P <.001). Over time, the mean age at injury increased significantly ( P <.001); it was 37.7+/-17.5 years in 2000-2003. The majority of cases were white (66.1%). Tetraplegia (54.1%) and complete injuries (55.6%) occurred more than paraplegia and incomplete injuries, respectively. MVCs (45.6%) remained the most common etiology; falls (19.6%) held the second position over violence (17.8%), except for the 1990-1999 period when the positions were reversed. Significantly increasing percentages of new injuries were seen for SCI due to automobile, motorcycle, bicycle, and all-terrain vehicle crashes, blunt object attacks, snow skiing, and medical and surgical mishaps.
  
  
  CONCLUSIONS
  Many previously seen SCI demographic trends continued into the 2000 decade.
authors.affiliation: Spain Rehabilitation Center, University of Alabama at Birmingham, 35233, USA. Jacksona@uab.edu
authors.forename: Amie B
authors.initials: AB
authors.lastname: Jackson
authors.forename: Marcel
authors.initials: M
authors.lastname: Dijkers
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Devivo
authors.forename: Robert B
authors.initials: RB
authors.lastname: Poczatek
mesh_terms: D000047:Academies and Institutes; D000059:Accidents / Q000706:statistics & numerical data; D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001265:Athletic Injuries / Q000150:complications / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D016208:Databases, Factual; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D010343:Patient Admission / Q000639:trends; D011159:Population Surveillance; D012307:Risk Factors; D017678:Sex Distribution; D013119:Spinal Cord Injuries / Q000145:classification / Q000453:epidemiology* / Q000209:etiology; D015599:Trauma Severity Indices; D014481:United States / Q000453:epidemiology; D014754:Violence / Q000706:statistics & numerical data