@article{townsley_koutouan_mayorga_mills_davis_hasmiller lich_2022, title={When History and Heterogeneity Matter: A Tutorial on the Impact of Markov Model Specifications in the Context of Colorectal Cancer Screening}, volume={5}, ISSN={["1552-681X"]}, DOI={10.1177/0272989X221097386}, abstractNote={Background Markov models are used in health research to simulate health care utilization and disease states over time. Health phenomena, however, are complex, and the memoryless assumption of Markov models may not appropriately represent reality. This tutorial provides guidance on the use of Markov models of different orders and stratification levels in health decision-analytic modeling. Colorectal cancer (CRC) screening is used as a case example to examine the impact of using different Markov modeling approaches on CRC outcomes. }, journal={MEDICAL DECISION MAKING}, author={Townsley, Rachel M. and Koutouan, Priscille R. and Mayorga, Maria E. and Mills, Sarah D. and Davis, Melinda M. and Hasmiller Lich, Kristen}, year={2022}, month={May} }
 @article{swan_nambiar_koutouan_mayorga_ivy_fransen_2020, title={EVALUATING DIABETIC RETINOPATHY SCREENING INTERVENTIONS IN A MICROSIMULATION MODEL}, ISSN={["0891-7736"]}, DOI={10.1109/WSC48552.2020.9384074}, abstractNote={Diabetic retinopathy (DR) is the leading cause of blindness for working age Americans. Early detection, timely treatment, and appropriate follow-up care reduce the risk of severe vision loss from DR by 95%, yet, less than 50% of people with diabetes adhere to the recommended screening guidelines. Diabetes is a complicated disease for patients and their physicians to manage. We developed a microsimulation integrating the natural history model of DR with a patient’s interaction with the care system. We introduced a DR screening device in primary care, with and without care coordination by a medical professional, in two interventions to the current care path. We found the interventions increased adherence of patients with vision-threatening DR (VTDR) to follow-up eye care, decreased the number of ‘unnecessary’ visits in specialty eye care from patients without VTDR, and decreased the total years spent blind.}, journal={2020 WINTER SIMULATION CONFERENCE (WSC)}, author={Swan, Breanna and Nambiar, Siddhartha and Koutouan, Priscille and Mayorga, Maria E. and Ivy, Julie and Fransen, Stephen}, year={2020}, pages={944–955} }