Table 2.
Results of cost-effectiveness analyses
| Cost ($) | Incremental Cost ($) | Effectiveness (QALY) | Incremental Effectiveness (QALY) | ICER ($/QALY) | |
|---|---|---|---|---|---|
| CTH-only Emergency Department | |||||
| Clinical judgement | $1,237 | - | −0.482 | - | - |
| PIBIS+CTHa | $1,561 | $324 | −0.464 | 0.018 | $17,722 |
| Universal CTH | $1,865 | $304 | −0.462 | 0.002 | $161,238 |
|
| |||||
| rMRI-capable Emergency Department | |||||
| Clinical judgement | $1,237 | - | −0.482 | - | - |
| PIBIS+rMRI+CTH | $1,437 | $199 | −0.461 | 0.021 | $9,476 |
| PIBIS+CTH | $1,561 | $124 | −0.464 | −0.003 | Dominatedb |
| Universal rMRI+CTH | $1,597 | $160 | −0.455 | 0.006 | $25,791 |
| Universal CTH | $1,865 | $268 | −0.462 | −0.007 | Dominated |
| PIBIS+rMRI only | $2,384 | $787 | −0.458 | −0.004 | Dominated |
| Universal rMRI only | $3,611 | $2,015 | −0.451 | 0.004 | $473,842 |
a
Bold text: Favored strategy at a $100,000 per quality adjusted life year threshold.
b
A dominated strategy is more costly and less effective than other strategies.
QALY, quality adjusted life years; ICER, incremental cost-effectiveness ratio; PIBIS, Pittsburgh infant brain injury score; CTH, computed tomography of the head; rMRI, rapid brain magnetic resonance imaging.