Grant: Op Gr: Data Analysis Using Existing Databases n Cohorts-Cancer Prevention n Ctrl

Cervical cancer is the 4th most common cancer diagnosed among women age 15-44 in Canada. Approximately 30% of all cases of cervical cancer diagnosed in Canada between 2011 and 2015 were diagnosed at stage 3 or 4, which is directly related to survival. As with many other health outcomes, there is evidence for disparities in stage of diagnosis based on social factors. However, although disparities in cancer screening for immigrants are well documented, little is known on disparities in diagnosis, treatment, and survival from cervical cancer among immigrants to Canada, despite foreign-born persons making up approximately 20% of the national population. Reducing mortality due to this cancer will require rich data to develop an understanding of where disparities lie in early stage diagnosis, treatment, and survival, and how they can be addressed. In this study, we will explore stage of diagnosis, treatment, and survival for cervical cancer among immigrants as compared to Canadian-born persons. We will also examine the role of other factors in early-stage diagnosis and treatment, such as primary care access, socio-economic status and health status. We will use Ontario-level databases housed at the Institute for Clinical Evaluative Sciences to conduct this work, including the Immigration Refugee & Citizenship Canada database, which includes data on country of birth, immigrant class, and date of landing, and the Ontario Cancer Registry, which includes all incidence cases of common adult cancers including cervical cancer. Our findings will provide important new knowledge on how to reduce disparities, and target interventions, for cervical cancer diagnosis, treatment, and survival in Canada for immigrants and other potentially marginalized groups.