Table 2.
Results of the three scenarios modeled for women receiving breast cancer screening in the NBCCEDP (n = 2,000,000 in each scenario)
| Parameter | Scenario |
||
|---|---|---|---|
| Program | No program | No screening | |
| Mammograms (per woman) over lifetime | 17.61 | 12.34 | 0.00 |
| Mammograms (per woman) age 40–64, 1991–2006 | 4.23 | 2.41 | 0.00 |
| Died of breast cancer | 3.53% | 3.93% | 4.97% |
| Clinically detected rate | 5.27% | 7.17% | 13.30% |
| Screen detected rate | 8.55% | 6.56% | 0.00% |
| Overall detected rate | 13.82% | 13.73% | 13.30% |
| Clinically detected | |||
| Localized | 52.0% | 50.8% | 48.0% |
| Regional | 41.7% | 42.7% | 44.7% |
| Distant | 6.3% | 6.5% | 7.3% |
| Screen detected | |||
| Localized | 81.1% | 78.8% | |
| Regional | 17.5% | 19.6% | |
| Distant | 1.4% | 1.6% | |
| Missed diagnostic follow-ups (per woman) | 0.049 | 0.059 | 0.000 |
| Costing information (per woman) | |||
| Screening costs | $2,635 | $1,771 | $0 |
| Diagnostic costs | $342 | $233 | $0 |
| Treatment costs | $5,689 | $5,560 | $5,258 |
| Patient navigation costs | $126 | $0 | $0 |
| Total costs | $8,791 | $7,564 | $5,258 |
| Life-years (per woman) | 21.990 | 21.965 | 21.915 |
| QALYs (per woman) | 21.969 | 21.945 | 21.898 |
| Incremental cost-effectiveness ratios (ICERs) | |||
| $ per life-year | |||
| Versus no screening | $47,489 | $46,580 | |
| Versus no program | $49,296 | ||
| $ per QALY | |||
| Versus no screening | $50,223 | $49,443 | |
| Versus no program | $51,754 | ||
Life-years and QALYs were rounded in the TreeAge software
NBCCEDP National Breast and Cervical Cancer Early Detection Program, QALYs quality-adjusted life-years