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Youth injury data in the Canadian Hospitals Injury Reporting and Prevention Program: do they represent the Canadian experience?
  1. William Pickett1,
  2. Robert J Brison1,
  3. Susan G Mackenzie2,
  4. Michael Garner3,
  5. Matthew A King4,
  6. T Lawson Greenberg2,
  7. William F Boyce5
  1. 1Department of Emergency Medicine and Department of Community Health and Epidemiology, Queen's University
  2. 2Laboratory Centre for Disease Control, Health Canada
  3. 3Department of Emergency Medicine, Queen's University
  4. 4Social Program Evaluation Group, Faculty of Education, Queen's University
  5. 5Department of Community Health and Epidemiology and Social Program Evaluation Group, Faculty of Education, Queen's University
  1. Correspondence to:
 Dr William Pickett, Assistant Professor, Department of Emergency Medicine, Queen's University, Angada 3, Kingston General Hospital, 76 Stuart St, Kingston, Ontario, Canada K7L 2V7
 (e-mail: PickettW{at}post.queensu.ca)

Abstract

Objective—Injuries to Canadian youth (11–15 years) identified from a population based health survey (World Health Organization—Health Behaviour in School-Aged Children Survey, or WHO-HBSC) were compared with youth injuries from a national, emergency department based surveillance system. Comparisons focused on external causes of injury, and examined whether similar rankings of injury patterns and hence priorities for intervention were identified by the different systems.

Setting—The Canadian version of the WHO-HBSC was conducted in 1998. The Canadian Hospitals Injury Reporting and Prevention Program (CHIRPP) is the national, emergency room based, surveillance program. Two hospitals involved in CHIRPP collectively provide population based data for Kingston, Ontario.

Method—Numbers of injuries selected for study varied by data source: WHO-HBSC (n=3673); CHIRPP (n=20 133); Kingston CHIRPP (n=1944). WHO-HBSC and Kingston CHIRPP records were coded according to four variables in the draft International Classification of External Causes of Injury. Existing CHIRPP codes were available to compare Kingston and other CHIRPP data by five variables. Males and females in the three datasets were ranked according to the external causes. Data classified by source and sex were compared using Spearman's rank correlation statistic.

Results—Rank orders of four variables describing external causes were remarkably similar between the WHO-HBSC and Kingston CHIRPP (ρ>0.78 p<0.004) for mechanism, object, location, and activity). The Kingston and other CHIRPP data were also similar (ρ>0.87; p<0.001) for the variables available to describe external causes of injury (including intent).

Conclusion—The two subsets of the CHIRPP data and the WHO-HBSC data identified similar priorities for injury prevention among young people. These findings indicate that CHIRPP may be representative of general youth injury patterns in Canada. Our study provides a novel and practical model for the validation of injury surveillance programs.

  • Canada
  • injury surveillance
  • trauma
  • wounds and injuries

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