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Area-based methods to calculate hospitalization rates for the foreign-born population in Canada, 2005/2006

Publication: Health Reports 2012:23(3) www.statcan.gc.ca/healthreports

Authors: Gisèle Carrière, Paul A. Peters and Claudia Sanmartin

Data: Data from the 2006 Census were appended to the 2005/2006 Hospital Morbidity Database via postal codes

Hospital records lack information about country of birth. This study describes a method for calculating hospitalization rates by the percentage of foreign-born in Census Dissemination Areas (DAs).

Data from the 2006 Census were used to classify DAs by the percentage of the foreign-born population who lived in them. Quintile and tercile thresholds were created to classify DAs as having low to high percentages of foreign-born residents. This information was appended to the 2005/2006 Hospital Morbidity Database via postal codes. Age-sex standardized hospitalization rates were calculated for low to high foreign-born concentration DAs, nationally and subnationally.

Nationally, quintile thresholds had better discriminatory power to detect variations in hospitalization rates by foreign-born concentration, but tercile thresholds produced reliable results at subnational levels. All-cause hospitalization rates were lowest among residents of the high foreign-born concentration terciles. Similar gradients emerged in hospitalization rates for heart disease, diseases of the circulatory system, and mental health conditions. The pattern varied more at the subnational level.

Full article

For more information about this article, contact Gisèle Carrière (1-604-666-5907; gisèle.carrière@statcan.gc.ca), Health Analysis Division, Statistics Canada.