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Table 1 Independent variables from the NWT Community Survey included in the risk factor analysis of NGI

From: Community-level risk factors for notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008

Variable name

Definition(8)

Households in core need

Percentage of households that fall below at least one of the adequacy, affordability or suitability standards and that have a total household income below the Community Core Need Income Threshold. Suitability is defined as having the appropriate number of bedrooms for the characteristics and number of occupants as determined by the National Occupancy Standard requirements. Adequate housing must have running water, an indoor toilet, bathing and washing facilities and must not require major repairs. Affordable housing costs less than 30% of household income where shelter costs include utilities, water, heat, insurance, property taxes and lease costs and rent or mortgage payments. The Core Need Income Threshold is an income limit for each community that represents the amount of income a household must have to be able to afford the cost of owning and operating a home or renting in the private market without government assistance.

No high school education

Percentage of population 15 years of age or older that do not have a high-school diploma.

Unemployment rate

Total number of unemployed persons 15 years of age or older divided by the total number of persons 15 years of age and older participating in the labor force.

Median income

Median personal income for persons aged 15 and over, from all sources.

Single parent families

Percentage of single-parent families among all married, common law or single parent families living in private households with at least one never-married son or daughter living in the same household.

Primary health facility

Nursing station: primary care by community health nurses; health center: wide range of programs and services for outpatient care; hospital: inpatient, outpatient and emergency services.

Health expenditure per capita

Public expenditure divided by the population. Health expenditure includes the provision of health services (preventive and curative), family planning activities, nutrition activities, and emergency aid designated for health, but excludes the provision of water and sanitation.

Physician billing per capita

Collection of fees for public medical services per person per year.

Drinking water source

Ground: any subsurface water that occurs beneath the water table in soil and other geologic forms; surface: water occurring in lakes, rivers, streams or other fresh water sources.

Water treatment type

Small system: filtration with UV and liquid chlorine disinfection and storage; class 1: tempering, gaseous chlorine disinfection and liquid fluoridation; class 2: coagulation, flocculation, inclined tube settling and multi-media filtration with liquid chlorine disinfection and storage.

Waste disposal system

Trucked: liquid sewage pick-up from holding tanks or plastic bags from residences; piped: interior plumbing and fixtures for holding and collecting waste.

Traditional foods

Percentage of households reporting that most or all (75% or more) of the meat or fish consumed is harvested.

Hunting/fishing

Percent of people 15 years of age or older that hunted or fished during the year.

Food price index

Consists of the average of 6 commodity group prices indices (meat, dairy, cereals, oils and fats, sugar) weighted with the average export shares of each of the groups.

Trapping

Percent of people 15 years of age or older that trapped during the year

Population density

Total population of community divided by its area in km2.

Internal mobility

Percentage of population moving between communities within the last one year.

Rural

An area with a population of less than 1,000 and a density of less than 400 persons per km2.