The Impact of Unrelated Future Medical Costs on Economic Evaluation Outcomes for Different Models of Diabetes

Zhao T, Tew M, Feenstra T, van Baal P, Willis M, Valentine WJ, Clarke PM, Hunt B, Altunkaya J, Tran-Duy A, Pollock RF, Malkin SJP, Nilsson A, McEwan P, Foos V, Leal J, Huang ES, Laiteerapong N, Lamotte M, Smolen H, Quan J, Martins L, Ramos M, Palmer AJ

This study leveraged data from 11 independent international diabetes models to evaluate the impact of unrelated future medical costs on the outcomes of health economic evaluations in diabetes mellitus.

Eleven models simulated the progression of diabetes and occurrence of its complications in hypothetical cohorts of individuals with type 1 (T1D) or type 2 (T2D) diabetes over the remaining lifetime of the patients to evaluate the cost effectiveness of three hypothetical glucose improvement interventions versus a hypothetical control intervention. All models used the same set of costs associated with diabetes complications and interventions, using a United Kingdom healthcare system perspective. Standard utility/disutility values associated with diabetes-related complications were used. Unrelated future medical costs were assumed equal for all interventions and control arms. The statistical significance of changes on the total lifetime costs, incremental costs and incremental cost-effectiveness ratios (ICERs) before and after adding the unrelated future medical costs were analysed using t-test and summarized in incremental cost-effectiveness diagrams by type of diabetes.

The inclusion of unrelated costs increased mean total lifetime costs substantially. However, there were no significant differences between the mean incremental costs and ICERs before and after adding unrelated future medical costs. Unrelated future medical cost inclusion did not alter the original conclusions of the diabetes modelling evaluations.

For diabetes, with many costly noncommunicable diseases already explicitly modelled as complications, and with many interventions having predominantly an effect on the improvement of quality of life, unrelated future medical costs have a small impact on the outcomes of health economic evaluations.

Publication

/Costs and disease burden

The Impact of Unrelated Future Medical Costs on Economic Evaluation Outcomes for Different Models of Diabetes

Zhao T, Tew M, Feenstra T, van Baal P, Willis M, Valentine WJ, Clarke PM, Hunt B, Altunkaya J, Tran-Duy A, Pollock RF, Malkin SJP, Nilsson A, McEwan P, Foos V, Leal J, Huang ES, Laiteerapong N, Lamotte M, Smolen H, Quan J, Martins L, Ramos M, Palmer AJ

Publication

/Costs and disease burden

The Impact of Unrelated Future Medical Costs on Economic Evaluation Outcomes for Different Models of Diabetes

Zhao T, Tew M, Feenstra T, van Baal P, Willis M, Valentine WJ, Clarke PM, Hunt B, Altunkaya J, Tran-Duy A, Pollock RF, Malkin SJP, Nilsson A, McEwan P, Foos V, Leal J, Huang ES, Laiteerapong N, Lamotte M, Smolen H, Quan J, Martins L, Ramos M, Palmer AJ

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