Separations by year are based on the date of discharge, not the date of admission. As such, records with invalid discharge dates are not included.
The HMHDB is an event-based rather than a person-based database; individuals may be represented multiple times in the data.
For 2006–2007, 2007–2008, 2008–2009, 2009–2010, 2011–2012, 2012–2013, 2013–2014, 2014–2015 and 2015–2016, crude rate calculations at the provincial/territorial level are based on population estimates from Statistics Canada as of July 1, 2006, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2016 and 2017, respectively.
For 2010–2011, crude rate calculations at the provincial/territorial level are based on population estimates from Statistics Canada as of October 1, 2010.
For 2006–2007, 2007–2008, 2008–2009, 2009–2010, 2011–2012, 2012–2013, 2013–2014, 2014–2015 and 2015–2016, crude rate calculations at the regional level are based on population estimates from Statistics Canada as of July 1, 2006, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2016 and 2017, respectively.
For 2010–2011, crude rate calculations at the regional level are based on population estimates from Statistics Canada as of October 1, 2010.
Standardized rates are age-adjusted using a direct method of standardization based on the July 1, 2011, Canadian population. For data years prior to 2014–2015, rates were age-adjusted using a direct method of standardization based on the July 1, 1991, Canadian population.
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