CAMO 2020 Annual Meeting Abstracts.

Background: Despite universal access to health care in Canada, disparities relating to social determinants of health contribute to discrepancies in cancer incidence and outcomes between rural and urban areas. Given that Canada has one of the highest-quality national population-based cancer registry systems in the world and little information is available about cancer statistics specific to northwestern Ontario, the purpose of this study was to estimate the percentage of cancer patients without documentation of a specialist consultation (medical or radiation oncology consultation) and to determine factors that affect access to specialist consultation in northwestern Ontario. Methods: This population-based retrospective study used administrative data obtained through the Ontario Cancer Data Linkage Project. For each index case, a timeline was constructed of all Ontario Health Insurance Plan billing codes and associated service dates, starting with the primary cancer diagnosis and ending with death. Specific factors affecting access to specialist consultation were assessed. Results: Within the 6-year study period (2010–2016), 2583 index cases were identified. Most (n=2007, 78%) received a specialist consultation. Factors associated with not receiving a specialist consultation included older age [p<0.0001; odds ratio (or): 0.29; 95% confidence interval (ci): 0.19 to 0.44] and rural residence (p<0.0001; or: 0.48; 95% ci: 0.48 to 0.72). Factors associated with receiving a specialist consultation included increased duration of disease (p<0.0001; or: 1.32; 95% ci: 1.19 to 1.46), a diagnosis of breast cancer (p<0.0001; or: 2.51; 95% ci: 1.43 to 4.42), and a diagnosis of lung cancer (p<0.0001; or: 1.77; 95% ci: 1.38 to 2.26). Conclusions: This study is the first to look at care access in northwestern Ontario. The complexity and multidisciplinary nature of cancer care make the provision of appropriate care a challenge; a one-size-fits-all disease prevention and treatment strategy might not be appropriate.