Fig. 2

Sensitivity analyses effect on costs (a) and QALYs (b). Sensitivity analyses to determine the effect on downstream costs (a) and QALYs (b) when model inputs were varied across plausible ranges (Table 1). The model inputs represented on the y-axis are probabilities. Wider bars indicate greater variability in estimated downstream costs or QALYs when the input was varied across its plausible range (i.e., the model was most sensitive to uncertainty around these inputs). a incorporates one threshold analysis in which we asked what price per student would result in ParentCorps no longer being cost saving