Table 3.
Incremental Cost-effectiveness of Biennial Breast Cancer Screening in Older Women by Chronological Age*
| Strategy | Number of Mammograms | Life Expectancy (Years) | Incremental Life Expectancy (Years) | Costs | Incremental Costs | Incremental Costs per LYS |
|---|---|---|---|---|---|---|
| 50–70 y | 9.4 | 19.453 | — | $2,291.945068 | — | — |
| 50–79 y | 12.5 | 19.455 | .002373432 | $2,488.173584 | $194.771484 | $82,063 |
| Lifetime | 15.1 | 19.456 | .000924076 | $2,628.110107 | $139.936523 | $151,434 |
*
Costs and effects discounted at 3%. Each strategy is considered compared to the next least expensive approach.
LYS, life years saved.