Estimated Annual Number of Deaths and Hospital Admissions Attributed to Influenza, Canada.

Notes:ns: not statistically significant.1Though the model estimate for the 2009 pandemic was not statistically significant based on all-cause mortality, the estimate based on respiratory deaths was statistically significant. Hence, the lower 95%CI was adjusted based on the results of the respiratory model (see Table2).2Figures have been rounded.3Annual estimates for the burden attributed to influenza B were not specifically reported, as only one influenza B multiplier parameter was estimated for whole study period.