Table 5 –
Break-even analysis on inpatient care for major vascular events.
| Base case | Baseline adherence >50% | Baseline LDL > 100 mg/dl | Receiving/qualifying for two calls or more | ||
|---|---|---|---|---|---|
| Average cost per event | $71,000 | ||||
| Break even WTP per 1 mg/dl LDL lowering | $15 | ||||
| Probability of UC being cost-effective at WTP | 0.885 | 0.743 | 0.149 | 0.259 | |
| Probability of IVR being cost-effective at WTP | 0.112 | 0.168 | 0.334 | 0.64 | |
| Probability of IVR+ being cost-effective at WTP | 0.003 | 0.089 | 0.517 | 0.101 | |
| Low cost per event | $52,000 | ||||
| Break even WTP per 1 mg/dl LDL lowering | $11 | ||||
| Probability of UC being cost-effective at WTP | 0.949 | 0.903 | 0.251 | 0.583 | |
| Probability of IVR being cost-effective at WTP | 0.051 | 0.081 | 0.457 | 0.414 | |
| Probability of IVR+ being cost-effective at WTP | <0.001 | 0.016 | 0.292 | 0.003 | |
| High cost per event | $107,000 | ||||
| Break even WTP per 1 mg/dl LDL lowering | $23 | ||||
| Probability of UC being cost-effective at WTP | 0.687 | 0.461 | 0.067 | 0.033 | |
| Probability of IVR being cost-effective at WTP | 0.223 | 0.238 | 0.198 | 0.549 | |
| Probability of IVR+ being cost-effective at WTP | 0.09 | 0.301 | 0.735 | 0.418 |
IVR, interactive voice recognition; IVR+, IVR plus educational materials; LDL, low-density lipoprotein; UC, usual care; WTP, willingness to pay.