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Table 1 Hospital separations for intentional injuriesa, British Columbia, 1991–2010b

From: Intentional injury among the indigenous and total populations in British Columbia, Canada: trends over time and ecological analyses of risk

  P-yearsc Obsd Expe Rate f 95% CI for Rate SRRg 95% CI for SRR
BC, total population
 Intentional 78,256,306 65,802 65,802 8.4 8.3 to 8.5 1 [reference]
  Self-inflicted 78,256,306 38,590 38,590 4.9 4.9 to 5.0 1 [reference]
  Inflicted by another 78,256,306 27,212 27,212 3.5 3.4 to 3.5 1 [reference]
BC, Indigenous
 Intentional 2,541,060 11,506 2990 45.3 44.5 to 46.1 3.85 3.71 to 3.99
  Self-inflicted 2,541,060 6036 1738 23.8 23.2 to 24.4 3.47 3.31 to 3.64
  Inflicted by another 2,541,060 5470 1252 21.5 21.0 to 22.1 4.37 4.13 to 4.62
BC, Indigenous, off-reserve
 Intentional 1,403,813 6009 1531 42.8 41.7 to 43.9 3.92 3.74 to 4.13
  Self-inflicted 1,403,813 3029 889 21.6 20.8 to 22.4 3.41 3.19 to 3.64
  Inflicted by another 1,403,813 2980 642 21.2 20.5 to 22.0 4.64 4.30 to 5.02
BC, Indigenous, on-reserve
 Intentional 1,131,862 5468 1457 48.3 47.0 to 49.6 3.75 3.57 to 3.96
  Self-inflicted 1,131,862 2997 848 26.5 25.5 to 27.4 3.54 3.31 to 3.78
  Inflicted by another 1,131,862 2471 610 21.8 21.0 to 22.7 4.05 3.74 to 4.39
  1. a“Intentional injury” defined as Most Responsible Diagnosis in the range ICD9:800–999 or ICD10:S00-T98, and supplemental diagnosis in the range ICD9:E950-E958 or ICD10:X60-X84 (self-inflicted) or ICD9:E960-E968 or ICD10:X85-Y09 (inflicted by another)
  2. bInjuries occurring during the observation period 1991-Apr-01 to 2010-Mar-31
  3. cPerson-years is the sum of the annual population counts times the fraction of each year included in the observation period
  4. dObserved number of injuries
  5. eExpected number, indirectly standardized, based on age, gender and HSDA-specific rates in the total population of BC
  6. fCrude Rate per 10,000 person-years
  7. gStandardized Relative Risk (compared to the total population of BC) = Observed/Expected