Correlates of non-adherence to breast, cervical, and colorectal cancer screening among screen-eligible women: a population-based cohort study in Ontario, Canada.

Considering that more than 15% of screen-eligible women in Ontario were overdue for all types of cancer screening, it is imperative to address structural barriers such as lack of a primary care provider. Innovative interventions like "one-stop shopping" where screening for different cancers can be offered at the same time could promote screening uptake.