Table 3.
Comparison of Approaches for Estimating Mean Per Person Annual Prevalence Costs of Care for Colorectal Cancer Patients
| Total Per Person Costs | Net Per Person Costs | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Est ($) | 95% CI ($) | Difference from reference |
Est ($) | 95% CI ($) | Difference from reference |
||||
|
SEER- Medicare |
Base | 12,231 | 12,188 | 12,274 | Reference | 5,457 | 5,362 | 5,552 | Reference |
|
Sensitivity* – other non- CRC cancers included |
12,803 | 12,731 | 12,876 | +$572 +4.7% |
5,563 | 5,474 | 5,653 | +$106 +1.9% |
|
|
Medicare Claims only |
Base | 17,579 | 17,073 | 18,086 | +$5,348 +43.7% |
8,736 | 8,203 | 9,269 | +3,279 +60.1% |
|
Sensitivity* – other non- CRC cancers included |
16,643 | 16,273 | 17,013 | +4,412 +36.1% |
7,792 | 7,403 | 8,812 | +2,335 +42.8% |
|
|
Sensitivity* – more years of claims to identify CRC |
13,891 | 13,563 | 14,218 | +$1,660 +13.6% |
5,413 | 5,066 | 5,760 | −$44 −0.8% |
|
| MEPS | Base | 18,359 | 14,320 | 22,398 | +$6,128 +50.1% |
11,614 | 7,566 | 15,663 | +$6,157 +112.8% |
|
Sensitivity* – other non- CRC cancers included |
20,491 | 16,853 | 24,130 | +$8,260 +67.5% |
13,767 | 10,117 | 17,418 | +$8,310 +152.3% |
|
CRC = colorectal cancer SEER = Surveillance Epidemiology and End Results MEPS = Medical Expenditure Panel Survey
*
Sensitivity analyses were conducted to assess the impact of including (rather than excluding) patients with other cancer diagnosis, and including additional years of claims to identify colorectal cancer patients and estimating costs for the same observation period (1998–2002)
All estimates in 2004 dollars