Simplified decision analytic model employed. *The individual survival probabilities between 28 days and 30 months were included in the model but are not shown in this figure. A similar tree was used in the bleeding and non-bleeding arms, and for the drotrecogin alfa and placebo arms (not shown). After the 30 months a Markov model was employed (determined by the node M).
Costa and Brophy BMC Anesthesiology 2007 7:5 doi:10.1186/1471-2253-7-5