Table 1.

Variables and data sources for the Montreal census tracts in 2009

Variable	Source	Description	Median (1st quartile, 3rd quartile)
Population	Census 2006	Number of CT residents excluding individuals that were vaccinated at non-MVC locations	3140 (2142, 4261)
Material deprivation index	Census 2006	Index comprising the proportion of the population without high school diploma, employment to population ratio, and average income. Expressed as a percentile/1005	0·51 (0·31, 71·0)
Unemployment	Census 2006	Unemployment rate23,30	0·083 (0·062, 0·11)
Post-secondary education	Census 2006	Proportion with a post-secondary education22,25,28,30,32	0·68 (0·58, 0·76)
Poverty	Census 2006	Proportion of families that are living below the poverty level, that is, income <63% of the average income in their community-size, family-size strata5,36	0·22 (0·15, 0·31)
New immigrants	Census 2006	Proportion of the population that recently immigrated5,29,34	0·056 (0·033, 0·091)
Official languages	Census 2006	Proportion of the population (≥15 years) speaking English or French34,36	0·016 (0·0070, 0·034)
Ages 0–4	Census 2006	Proportion of the population that is 4 years old or younger3,20,26,27,29,30,33	0·043 (0·036, 0·050)
Ages 5–19	Census 2006	Proportion of the population that is 5–19 years old (inclusive)3,20,26,27,29,30,33	0·15 (0·12, 0·18)
Ages 20–64	Census 2006	Proportion of the population that is 20–64 years old (inclusive)3,20,26,27,29,30,33	0·64 (0·60, 0·71)
Ages 65 plus	Census 2006	Proportion of the population that is 65 years old or older3,20,26,27,29,30,33	0·14 (0·10, 0·18)
Chronic conditions	Estimated from CCHS* and demographic variables**	Proportion of the population under 65 years of age with a chronic condition3,22,26,29,30	0·134 (0·129, 0·137)
Pregnant	Estimated from CCHS and demographic variables	Proportion of the population that is pregnant3,26,30	0·011 (0·0094, 0·013)

^*Canadian Community Health Survey.³¹

^**Described by Brien et al.⁵