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7 2001, 2006, 2011, and 2016 Canada Census of Agriculture and extrapolated for the years in which the census was not performed. Notably, 2014-2020 is data is incomplete for British Columbia and 2016 is incomplete for Manitoba. In addition to the Canada Census of Agriculture population, temporary foreign workers under the seasonal agriculture workers program from Citizenship & Immigration Canada were included. For the year(s) in which provinces did not submit fatality data, the populations for those years were not included in the denominator. Some caution is warranted in the interpretation of the rates because it is not possible to obtain complete data on the full population at risk, or to determine relative amounts of exposure to agriculture-related work and associated hazards. Also, the Canada Census of Agriculture includes all farm and ranch residents, some of whom have relatively little exposure to agriculture-related work hazards, but excludes visitors to farms or ranches and agricultural workers who are not resident on farms or ranches. The accuracy of agriculture census information may vary among provinces, but is the best source of denominator information available at this time. The trend change of the age-standardized rates over time is expressed in average annual per cent between time periods. The sum of the average percentage change will give the overall change. The trending was done with the Joinpoint Regression Program. To ensure the data in this report are illustrated in an effective and useful manner, data fields with small numbers are often not included in graphs. In these cases, a note is included below the graph. 2.5 DATA LIMITATIONS The data is collected in accordance with section 2.1 (Identification of Agriculture-Related Fatalities). However, there are limitations to this data collection; if the injury has not been identified as having occurred on the farm, having involved agricultural machinery, or having been agricultural activities, the incident is not captured. Data abstraction is completed on-site at provincial chief coroners' or medical examiners' offices. The quality of the data is reflective of the detailed documentation available in the records at the provincial chief coroners' or medical examiners' offices. Data is collected in a consistent manner using a standard data abstraction form (Appendix C). Data are then sent to the national site for verification, coding, and analysis. There are also limitations identifying migrant workers. The numbers of migrant workers included in the denominator for calculating of rates only accounted for those workers who participated in the seasonal agricultural workers program from Citizenship & Immigration Canada. Joinpoint, Version 5.0.1. April 2023; Statistical Research and Applications Branch, National Cancer Institute. Methods by Kim HJ, Fay MP, Feuer EJ, Midthune DN. Permutation tests for joinpoint regression with applications to cancer rates. Stat Med 2000;19:335-51 (correction: 2001;20:655). Canadian Agriculture Injury Reporting Agriculture-related Fatalities in Ontario 1990 – 2020