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Breast-conserving therapy initially costs more than mastectomy for women with early-stage breast cancer, but the total medical costs are lower at 5 years, said Dr. William E. Barlow of the Group Health Cooperative, Seattle, and his associates.
Costs are not the major consideration influencing treatment, the investigators noted. Disease stage, patient age, and the presence of comorbidity affect treatment choice.
The study examined results from a population-based sample of 1,639 women who were at least 35 years old and had early-stage breast cancer (stage I, JIA, or JIB). Complete cost information was available for study participants at 6 months after diagnosis.
All of the women were treated at a single nonprofit HMO, and the study considered only costs to the HMO, so the results cannot be generalized to other health care systems, the researchers said (J. Natl. Cancer Inst. 93[6]:447-55, 2001).
The average cumulative cost of medical care associated with mastectomy alone was $12,987 after 6 months of treatment, $16,704 at 1 year, and $41,930 at 5 years.
The average cumulative cost associated with mastectomy plus adjuvant therapy was $14,309 at 6 months, $18,856 at 1 year, and $45,670 at 5 years.
Breast-conserving therapy incurred higher costs for radiation treatment, which offset the lower inpatient costs, compared with mastectomy.
Source: HighBeam Research, Breast-Conserving Tx Costs Less.