“…We adapted a previously published, discrete time microsimulation model of HIV among MSM, which tracks HIV disease progression and treatment dynamics according to characteristics of individual MSM on a yearly basis. 19 , 20 Specifically, the model determines the probability a susceptible individual becomes infected with HIV using the individual's demographic characteristics (age and race) and associated partnership preference pattern, number of partners, PrEP adherence, and ART adherence. See Appendix section, http://links.lww.com/QAI/C11 Model Description and Parameters for details.…”