Table 3.
DBT value analysis results
| Base-case analysis
|
Range analysis
|
||||
|---|---|---|---|---|---|
| Follow-up services rate for FFDM =15.35% and FFDM + DBT =10.00% | Follow-up services rate for FFDM =15.35% and FFDM + DBT =8.00% | Follow-up services rate for FFDM =15.35% and FFDM + DBT =9.00% | Follow-up services rate for FFDM =15.35% and FFDM + DBT =11.00% | Follow-up services rate for FFDM =15.35% and FFDM + DBT =12.00% | |
| Patients utilizing follow-up services | |||||
| Current scenario with FFDM | 12,978 | 12,978 | 12,978 | 12,978 | 12,978 |
| Revised scenario with FFDM + DBT | 8,455 | 6,764 | 7,609 | 9,300 | 10,146 |
| Difference (number of follow-ups averted due to use of DBT) | 4,523 | 6,214 | 5,369 | 3,678 | 2,832 |
| Total costs | |||||
| Current scenario with FFDM | $54,629,680 | $54,629,680 | $54,629,680 | $54,629,680 | $54,629,680 |
| Revised scenario with FFDM + DBT | $52,217,368 | $50,179,239 | $51,198,303 | $53,236,432 | $54,255,497 |
| Difference (total costs savings due to use of DBT) | $2,412,312 | $4,450,441 | $3,431,376 | $1,393,247 | $374,183 |
| Additional expense of DBT for screening | −$4,227,466 | −$4,227,466 | −$4,227,466 | −$4,227,466 | −$4,227,466 |
| Attributable to reduction in follow-ups | $5,451,994 | $7,490,123 | $6,471,059 | $4,432,930 | $3,413,866 |
| Attributable to earlier detection of breast cancer | $1,187,783 | $1,187,783 | $1,187,783 | $1,187,783 | $1,187,783 |
| Per patient costs | |||||
| Current scenario with FFDM | $646.13 | $646.13 | $646.13 | $646.13 | $646.13 |
| Revised scenario with FFDM + DBT | $617.60 | $593.49 | $605.54 | $629.65 | $641.70 |
| Difference (total costs savings due to use of DBT) | $28.53 | $52.64 | $40.58 | $16.48 | $4.43 |
| Additional expense of DBT for screening | −$50.00 | −$50.00 | −$50.00 | −$50.00 | −$50.00 |
| Attributable to reduction in follow-ups | $64.48 | $88.59 | $76.54 | $52.43 | $40.38 |
| Attributable to earlier detection of breast cancer | $14.05 | $14.05 | $14.05 | $14.05 | $14.05 |
| Per member, per month costs | |||||
| Current scenario with FFDM | $4.55 | $4.55 | $4.55 | $4.55 | $4.55 |
| Revised scenario with FFDM + DBT | $4.35 | $4.18 | $4.27 | $4.44 | $4.52 |
| Difference (savings PMPM due to use of DBT) | $0.20 | $0.37 | $0.29 | $0.12 | $0.03 |
Abbreviations: DBT, digital breast tomosynthesis; FFDM, full field digital mammography; PMPM, per member, per month.