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Table 2 Pneumonia and Influenza Hospitalizations (Crude Rate per 100,000 per week)

From: Admission to hospital for pneumonia and influenza attributable to 2009 pandemic A/H1N1 Influenza in First Nations communities in three provinces of Canada

  2009 2004-08 H1N1 Attributable Rate Ratio: 2009:2004-08
British Columbia
First Nations Reserves 13.77 9.48 4.29 1.45
Other Residents 6.65 6.18 0.47 1.08
Rate Ratio: 2.07 1.53 9.13 1.35*
First Nations:Other
Manitoba
First Nations Reserves 26.84 18.44 8.40 1.46
Other Residents 11.21 10.07 1.14 1.11
Rate Ratio: 2.39 1.83 7.36 1.31*
First Nations:Other
Ontario
First Nations Reserves 16.84 11.74 5.10 1.44
Other Residents 7.35 5.54 1.81 1.33
Rate Ratio: 2.29 2.12 2.81 1.08*
First Nations:Other
  1. Crude rates of hospitalization for pneumonia or influenza (any diagnostic field) per 100,000 population per week. 2009 represents the average combined rate of both waves of H1N1 and 2004-08 the average rate during the same weeks in each of the prior 5 years. *Indicates the “ratio of ratios” which represents the degree to which the rate of P&I admissions increased relative to the general population after taking into account expected differences in rates based on the rates of hospitalization for P&I in 2004-2009.