Table 1.

The list of quasi-identifiers that were analyzed from the census file

Variable Name in the 2001 Census RDC File	Definition	# Response categories(*)
SEXP	Gender	2
BRTHYR	Year of birth (from 1880 to 2001). Age: We defined age categories based on 5 year ranges.	24
HLNABDR	Language: Language spoken most often at home by the individual at the time of the census.	4
ETH1-6	Ethnic Origin: Refers to the six possible answers for the ethnic or cultural group(s) to which the respondent's ancestors belong.	26
ASRR	Aboriginal Identity: Persons identifying with at least one Aboriginal group.	8
RELIGWI	Religious denomination: Specific religious denominations, groups or bodies as well as sects, cults, or other religiously defined communities or systems of belief.	3
TOTYRSR	Total Years of Schooling: Total sum of the years (or grades) of schooling at the elementary, high school, university and college levels. Only available for individuals age 15+.	9
MARST	Marital Status (Legal)	5
TOTINC	Total income: Total money income received from all sources during the calendar year 2000 by persons 15 years of age and over. We defined categories in $15K ranges.	22
DVISMIN	Visible minority status	4
DISABIL	Activity difficulties/reductions: Combinations of one or more activity difficulties/reduction.	4

^(*) The number of response categories excludes non-specific responses such as missing values, not available or "other".