title: Evaluation of a policy to reduce youth tractor crashes on public roads.
abstract: OBJECTIVE
  Evaluate the effectiveness of a United States state law, Wisconsin Act 455, in reducing highway tractor crashes involving youth operators.
  
  
  METHODS
  Policy outcome evaluation involving review of a retrospective case series.
  
  
  METHODS
  Youth highway tractor crashes from Wisconsin for the years 1994-2003 that resulted in a fatality, injury, and/or property damage.
  
  
  METHODS
  One hundred and forty six tractor crash cases involving operators younger than 16 years.
  
  
  METHODS
  Describe and model the tractor crash patterns before and after enactment of the law, and examine the relation between the contributing circumstances identified in the crash reports and the content covered in the mandated tractor certification course.
  
  
  RESULTS
  There was neither a significant change in the number of youth tractor crashes after the law was passed, nor any reduction in the proportion of crashes where the youth operator was designated at fault. The tractor certification course did not cover the major factors contributing to youth tractor crashes on public roads.
  
  
  CONCLUSIONS
  No significant effect of the law was detected and crash rates at the end of the study period were similar to those before Wisconsin Act 455. The authors'findings should not be construed to suggest that public policy, in general, is an ineffective strategy for the prevention of pediatric agricultural injuries. Negotiating a balance in public policy debates will be a challenge, but it is clear that future policy initiatives need to identify and implement the right policy for the right problem.
authors.affiliation: National Children's Center for Rural and Agricultural Health and Safety, Marshfield Clinic Research Foundation, Marshfield, WI 54449, USA. marlenga.barbara@mcrf.mfldclin.edu
authors.forename: B
authors.initials: B
authors.lastname: Marlenga
authors.forename: B C
authors.initials: BC
authors.lastname: Doty
authors.forename: R L
authors.initials: RL
authors.lastname: Berg
authors.forename: J G
authors.initials: JG
authors.lastname: Linneman
mesh_terms: D000056:Accident Prevention / Q000331:legislation & jurisprudence / Q000592:standards; D000062:Accidents, Occupational / Q000331:legislation & jurisprudence / Q000517:prevention & control*; D000063:Accidents, Traffic / Q000331:legislation & jurisprudence / Q000517:prevention & control* / Q000706:statistics & numerical data; D000293:Adolescent; D000383:Agriculture / Q000295:instrumentation*; D002648:Child; D006291:Health Policy / Q000331:legislation & jurisprudence; D006801:Humans; D018986:Motor Vehicles / Q000331:legislation & jurisprudence*; D015397:Program Evaluation; D011640:Public Policy; D012189:Retrospective Studies; D014922:Wisconsin