Background Decision support interventions help patients who are facing difficult treatment decisions and improve shared decision making. There is little evidence of the economic impact of these interventions.
Objective To determine the costs of providing a decision support intervention in the form of consultation planning (CP) and consultation planning with recording and summary (CPRS) to women with breast cancer and to compare the cost benefit of CP and CPRS by telephone versus in person.
Methods Sixty-eight women with breast cancer who were being treated at a rural cancer resource center were randomized to CP in person or by telephone. All participants were then provided with an audio-recording of the physician consultation along with a typed summary for the full intervention (CPRS). Surveys completed by the participants and center staff provided data for measuring costs and willingness-to-pay (WTP) benefits. Societal perspective costs and incremental net benefit (INB) across delivery methods was determined.
Results Total CP costs were $208.72 for telephone and $264.00 for in-person delivery. Significantly lower telephone-group costs (P Ë‚ .001) were a result of lower participant travel expenses. Participants were willing to pay $154.12 for telephone and $144.03 for in-person CP (P = .85). WTP did not exceed costs of either delivery method compared with no intervention. INB of providing CP for telephone versus in person was $65.37, favoring telephone delivery. Sensitivity analysis revealed that with more efficient CP training, WTP became greater than the costs of delivering CP by telephone versus no intervention.
Limitations There may be some income distribution effects in the measurement of WTP.
Conclusions Providing CP by telephone was significantly less costly with no significant difference in benefit. Participants’ WTP only exceeded the full cost of CP with more efficient training or higher participant volume. A positive INB showed telephone delivery is efficient and may increase accessibility to decision support services, particularly in rural communities.
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