Background: Because treatment options for localized prostate cancer (PCa) have similar survival outcomes but varying side effects, it is important that patients are meaningfully involved in the decision-making process to ensure the chosen treatment aligns with their needs, wants and preferences. Here, we describe PCa patients’ experience with informed decision-making as well as treatment patterns and trends over time. Methods: Focus groups were conducted with 47 men treated for PCa across Canada to understand their cancer journey experience. Thematic analysis was conducted. A subset of this data on informed decision-making is described. Men (≥ 35 years) diagnosed with localized, low-risk PCa from 2011-2013 were identified using data from six provincial cancer registries. Treatment data were identified by linking hospital/cancer centre data with registry data. Descriptive statistics were generated to describe treatment patterns and trends. Results: Focus group participants expressed a desire to be involved in the treatment decision-making process. While many participants felt completely informed about the treatment choices available to them, others felt they had not been properly engaged in the treatment decision-making process. Some participants felt they had opted for surgery or radiation therapy (RT) without full knowledge of the trade-offs between potential benefits and side effects. Others felt they may have made different decisions about their care had they been more informed. From registry data, in 2013 surgery was the most common primary treatment for men with low-risk PCa ranging from 12.0% in New Brunswick to 41.7% in Nova Scotia. RT was the second most common ranging from 6.4% in New Brunswick to 18.3% in Saskatchewan. Varying majorities of men had no record of surgical or radiation treatment, a proxy for active surveillance. Treatment trends over time suggest an increase in the use of non-active treatment approaches from 60.7% in 2011 to 69.9% in 2013. Conclusions: System performance indicators yield useful information about oncology practice patterns and trends. This information is enhanced when combined with patient level information on how men felt about decision-making around their PCa care.