Epidemiological and economic impact of pandemic influenza in Chicago: Priorities for vaccine interventions
Fig 3
Decision tree of health outcomes for influenza cases and related costs.
For each influenza case, the probability of the different health outcomes and related costs depend on the age and risk group of the patient. Patients with pre-existing medical condition have a high risk of experiencing severe influenza related health outcomes. The probability of each health outcome is assigned an uniform or triangular distribution [4]. For the uniform distribution, the lower and upper rate are presented; for triangular distribution, the lower, most probably, and higher rates are presented.