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Table 1 Poisson regression analyses of mortality rates.

From: Population mortality during the outbreak of Severe Acute Respiratory Syndrome in Toronto

  Adjusted Mortality Rate Ratio (95% CI)
   2003 – Period Before SARS 2003 – Period During SARS 2003 – Period After SARS
Greater Toronto Area     
All ages Compared to 2001 0.99 (0.91 – 1.08) 0.96 (0.90 – 1.03) 1.00 (0.92 – 1.10)
  Compared to 2002 1.05 (0.97 – 1.14) 0.99 (0.93 – 1.06) 1.01 (0.93 – 1.10)
Age 65 and over Compared to 2001 0.99 (0.90 – 1.09) 0.97 (0.90 – 1.04) 1.00 (0.91 – 1.09)
  Compared to 2002 1.06 (0.97 – 1.17) 0.99 (0.92 – 1.07) 0.98 (0.90 – 1.07)
Rest of Ontario     
All ages Compared to 2001 1.05 (0.99 – 1.12) 0.97 (0.92 – 1.02) 0.98 (0.93 – 1.04)
  Compared to 2002 1.07 (1.01 – 1.14) 0.97 (0.91 – 1.02) 0.97 (0.91 – 1.03)
Age 65 and over Compared to 2001 1.05 (0.99 – 1.11) 0.94 (0.88 – 1.01) 0.95 (0.89 – 1.02)
  Compared to 2002 1.06 (1.00 – 1.13) 0.95 (0.89 – 1.02) 0.95 (0.89 – 1.02)
  1. Adjusted mortality rate ratios compare mortality rates for periods in 2003 before, during, and after the SARS outbreak to the corresponding time periods in 2001 and 2002.