Fig. 1From: Epidemiological and economic burden of Clostridium difficile in the United States: estimates from a modeling approachDiagram of decision-analytic model of CDI showing natural history for a given age and risk group in a healthcare setting. (*) Pathways for B, C, D are the same as for A, but downstream parameters for mortality and recurrence depend on strain. (**) Pathway for second and subsequent recurrences follows the same natural history as first recurrence although the probability of 2nd + recurrence is greater than 1st Back to article page