Probabilistic Sensitivity Analysis of Estimated Net Present Value Cost Savings per Child for the iBASIS–Video Interaction to Promote Positive Parenting Intervention vs Usual Care
On the x-axis, negative values indicate additional cost and positive values indicate cost savings. Dollars are expressed as Australian dollars. The vertical dashed line indicates the break-even point.From the probabilistic sensitivity analysis, we estimated an 89% likelihood that NPV is at least 0—that is, downstream cost savings at least equal to intervention cost. This means there was an 88.9% chance that iBASIS-VIPP would deliver costs savings (or no net cost impost) for the NDIS, the dominant third-party payer. The likelihood of generating at least any specified cost savings (read off the x-axis) is described by the y-axis (