Supplementary data: An economic evaluation of reducing colorectal cancer surveillance intensity

<b>These are peer-reviewed supplementary materials for the article '</b><b>An economic evaluation of reducing </b><b>colorectal cancer surveillance intensity</b><b>' published in the</b><b> </b><b><i>Journal of Comparative Effectiveness Research</i></b><b>.</b><b>Table 1: </b>Parameters Used in the Model<b>Table 2: </b>Distributions Used for Probabilistic Sensitivity Analysis<b>Aim: </b>Analyze the impact of national implementation of ‘low intensity’ post-treatment colorectal cancer surveillance compared with current practices. <b>Materials &amp; methods:</b> Create a population-level Markov model to estimate impacts of expansion of low versus high intensity surveillance post-treatment on healthcare utilization, costs and caregiver time loss. <b>Results:</b> Shifting to low intensity colorectal cancer surveillance would reduce patient burden by 301,830 h per patient annually over 5 years. Cost reductions over 5 years were US$43.5 million for Medicare and US$4.2 million for Medicaid. Total societal cost savings equaled US$104.2 million. Conclusion: National implementation of low intensity post-treatment colorectal cancer surveillance has the potential to significantly reduce burden and costs on patients and their caregivers with no added risks to health.