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6 Farm Population: The population covered by the Agriculture–National Household Survey Linkage database and the estimates derived from it also changed in two ways in 2011: — The definition of the farming population changed. In the years prior to 2011, only operators and their families who resided on the farm at any time in the previous 12 months were included in the farming population. In 2011, the on-farm restriction was removed. Operators and their families not residing on a farm are also included. — Residents of collective dwellings were not eligible to receive the National Household Survey and, thus, are not represented in the Agriculture–National Household Survey Linkage database. The farm populations used to calculate rates presented in this report are based on the 2011 definitions and numbers from previous census periods were re-tabulated accounting for the current definition. 2.3 CONFIDENTIALITY OF CAIR DATA Data are maintained in an electronic database that is managed centrally by the National Coordinator under the supervision of the CAIR Co-Directors. The provincial collaborators retain the complete data set for their own provinces. Access to the national dataset is strictly limited to CAIR collaborators for the following activities: 1. CAIR provincial collaborators assigned the task of producing special technical reports for Canada. 2. CAIR collaborators who have permission from the CAIR group to conduct special analyses for the purpose of producing scientific reports for submission to peer- reviewed journals. 3. The National Coordinator and CAIR Co- Directors for the purpose of maintaining the database and producing periodic comprehensive reports for Canada. 4. To support agriculture-related injury prevention initiatives by others through analyses presented as tabular data. 2.4 ANALYSIS The analysis presented in this report is descriptive and not interpretive to imply cause and effect. It has three main objectives: 1. to illustrate the magnitude of the agriculture-related fatality problem in Canada, 2. to compare trends in the causes and occurrence of fatal agriculture-related injuries among genders and age groups, and 3. to identify emerging patterns of injuries. The statistics used include simple counts and frequencies as well as cross tabulations. To allow for comparison across the provinces and years, age-standardized rates were calculated using the direct method. This method controls for potential sources of bias resulting from variations in age distributions of populations. Formal hypothesis testing methods and tests of statistical significance were not employed in comparisons. Rates of fatal agriculture-related injuries are presented in this report. The numerators used in calculating these rates are the numbers of agriculture-related fatalities for particular age categories and mechanisms of injury. These include fatal injuries to farm residents, hired agriculture-related workers, contractors, persons travelling on public highways, and a small number of visitors to farms. Denominators for these rate calculations are taken from the 1996, Canadian Agriculture Injury Reporting Agriculture-related Fatalities in Ontario 1990 – 2020