Table 2.
Cost-utility analysis for 3-year, 1-year, and 5-year time horizons.
| Strategy | Mean Costs |
Mean QALYs* |
ICER** | Probability of Cost Effectiveness at $25,000/QALY |
Probability of Cost Effectiveness at $50,000/QALY |
Probability of Cost Effectiveness at $100,000/QALY |
|
|---|---|---|---|---|---|---|---|
| 3- year |
IH-CBT | $4,588 | 2.10 | Dominant | 99.5% | 99.7% | 99.9% |
| SHV | $4,590 | 2.03 | |||||
| Difference | −$2 | 0.07 | |||||
| 1- year |
IH-CBT | $2,393 | 0.83 | $9,862 | 93.6% | 99.1% | 99.7% |
| SHV | $2,010 | 0.79 | |||||
| Difference | $929 | 0.04 | |||||
| 5- year |
IH-CBT | $6,882 | 3.35 | Dominant | 99.7% | 99.7% | 99.7% |
| SHV | $6,963 | 3.28 | |||||
| Difference | −$81 | 0.07 |
IH-CBT – In-Home Cognitive Behavioral Therapy; SHV – Standard Home Visiting
Difference was calculated as IH-CBT minus SHV
Dominant implies that the strategy decreases costs and increases QALYs
*
QALY is quality-adjusted life year
**
ICER is incremental cost-effectiveness ratio