Figure 1.

An influence diagram of the individual microsimulation model structure. (A) Adherence directly impacted the rate of viral suppression and HIV disease progression, which determined the prognosis for modeled individuals. SMS interventions improve individual adherence and thus impact health outcomes. (B) Individuals could disengage from care during the simulation with probabilities matching East African data. Once disengaged, simulated individuals could reengage with a health system or die out of care. SMS interventions were simulated to reduce the probability of disengagement. HIV = human immunodeficiency virus, SMS = short messaging service.