Data Impact Challenge Question 6a

Question 6a: For what portion of patients with metastatic disease is cancer screening, or surveillance for a new primary cancer, conducted in a given year? (Relates to Choosing Wisely Canada Oncology recommendation #2)

Choosing Wisely Canada is a campaign to help physicians and patients engage in conversations about unnecessary tests, treatments and procedures. Canadian national specialty societies participating in the campaign, representing a broad spectrum of physicians, were asked to develop lists of “Five Things Physicians and Patients Should Question.” These lists identify tests, treatments or procedures commonly used in each specialty, which are not supported by evidence, and/or could expose patients to unnecessary harm. Increasing understanding of the frequency with which care does or does not follow these recommendations could support targeted improvement and potentially could impact policy interventions.


Through the Data Impact Challenge, one submission was received in response to this question. The submission was received within seven weeks following the Challenge launch date. The submission focused analysis on colorectal cancer and breast cancer screening rates in Ontario with an aggregate sample size of approximately 30,000 patients.

Guiding Specifications

Sample: Minimum of 10,000 records
Timeframe: Analysis should include at least six months of data

Participating Teams

Treat Cancer WISely

Team bio: Team Treat Cancer WISely: Clinical and methodological researchers from WCRI, ICES and Sunnybrook Health Sciences Centre with interest in screening practices.
Entry: PDF