Text
Psycho- Oncology Journal (Jurnal Volume 28 no 1 2019)
A substantial proportion of cancer patients experience heightened psychological distress that may include anxiety, depression, fear of cancer recurrence, and cancerâ€specific distress.1, 2 Improving psychological outcomes of cancer patients across the continuum of care (ie, from diagnosis to survivorship) is a key aspect of oncology care, and as such there is an increasing expectation and requirement that cancer care service providers assess and address patients' psychosocial needs.3 These services vary in complexity depending on the level of psychosocial support required, care setting, and resource availability.4 There is a large body of evidence demonstrating the effectiveness of psychosocial care interventions in reducing depression and anxiety and improving quality of life of cancer patients.5-7 Nevertheless, and due to increasing health care costs, decision makers require evidence on the costâ€effectiveness (ie, value for money) of new services before they can make decisions to fund and implement them in practice. Economic evaluations are increasingly performed to generate evidence about the value for money of new health care interventions.
Economic evaluation involves the comparative analysis of the costs and consequences of alternative options.8 There are four types of economic evaluations: costâ€minimization analysis, costâ€effectiveness analysis, costâ€utility analysis, and costâ€benefit analysis.8 Costâ€minimization analysis assumes that the evaluated interventions have equivalent outcomes but different costs, and accordingly, the decision can be made on the basis of the difference in total cost alone. In costâ€effectiveness analysis, however, the incremental costs are compared with the incremental outcomes, as measured in natural units (eg, lifeâ€years gained, unit improvement in Symptom Distress Scale). A disadvantage of costâ€effectiveness analysis is that it does not enable direct comparison of interventions treating different conditions with different outcomes. In costâ€utility analysis, outcomes are expressed as qualityâ€adjusted lifeâ€years (QALYs) gained. The QALY adjusts the length of time gained through an intervention by the quality of life associated with health status.8 Given that costâ€utility analysis uses a generic outcome measure (ie, QALY), it allows decision makers to compare different interventions for different conditions. In costâ€effectiveness and costâ€utility analyses, the incremental benefits and costs are generally expressed as the incremental costâ€effectiveness ratio (ICER) which is the difference in cost divided by the difference in health effect between the evaluated interventions. The ICER must be compared with the decision maker's willingnessâ€toâ€pay threshold which, in a limited budget health care system, represents the opportunity cost of health benefits forgone elsewhere from the investment in the new intervention.8 An alternative approach to using an ICER is to estimate the incremental net monetary benefit, which is the increase in effect multiplied by the willingnessâ€toâ€payâ€threshold, less the increase in cost. The new intervention is considered costâ€effective if the incremental net benefit is positive. An analysis that measures both the costs and outcomes in monetary units is called costâ€benefit analysis.
Tidak tersedia versi lain