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A mathematical model for the determination of the optimum value of the treatment threshold for a continuous risk
1Université Claude Bernard Lyon, Hospices Civils de Lyon, France. MCU@upcl.univ-lyon1.fr
Insights
Determining the optimal treatment threshold for high cholesterol or hypertension is crucial for preventing coronary heart disease. This study presents a novel mathematical model to non-arbitrarily identify this threshold, optimizing public health interventions.
Area of Science:
- Cardiovascular Disease Prevention
- Health Economics
- Epidemiology
Background:
- Hypercholesterolemia and hypertension are significant risk factors for coronary heart disease (CHD).
- Establishing a precise treatment threshold for these risk factors is essential for effective preventive strategies.
- Current epidemiological data do not allow for a non-arbitrary determination of these thresholds.
Purpose of the Study:
- To present a method for the non-arbitrary determination of treatment threshold values for risk factors like hypercholesterolemia.
- To utilize mathematical modeling to assess the clinical and economic consequences of prevention policies.
- To identify an optimal, non-arbitrary treatment threshold for preventing coronary heart disease through cholesterol-lowering interventions.
Main Methods:
- Development of a mathematical model to simulate clinical and economic outcomes of prevention policies.
- Application of a cost-effectiveness analysis to evaluate the cost per coronary event prevented.
- Estimation of the optimal treatment threshold by identifying the minimum cost-effectiveness outcome based on blood cholesterol levels.
Main Results:
- A minimum in the cost per coronary event prevented was identified, serving as the optimum treatment threshold.
- The study demonstrates that a non-arbitrary optimal treatment threshold can be determined for hypercholesterolemia.
- The proposed model provides a quantifiable approach to setting intervention thresholds.
Conclusions:
- It is feasible to establish an optimal, non-arbitrary treatment threshold for preventing coronary heart disease using cholesterol-lowering interventions.
- The developed mathematical model can aid public health decision-making processes for risk factor management.
- This approach offers a data-driven method for optimizing the cost-effectiveness of cardiovascular disease prevention strategies.
Abstract:
Hypercholesterolemia or hypertension are continuous risk factors for coronary heart disease. When a preventive action is carried out against such a risk factor, it is necessary to specify a risk factor level value, named the treatment threshold, above which a subject should be treated. But a non-arbitrary determination of this threshold value is impossible from the epidemiological data. A method for the non-arbitrary determination of the treatment threshold value is presented, based upon mathematical modelling of the clinical and economics consequences of the prevention policy in the whole population. In a cost-effectiveness approach, the model was used to estimate the cost per coronary event prevented according to the threshold value for blood cholesterol. It was found that a minimum in this outcome proposed as the optimum treatment threshold. It is possible, from a public health point of view, to determine an optimum, non-arbitrary treatment threshold value in the prevention of coronary heart disease with cholesterol-lowering interventions. The model proposed here could be useful in decision making processes.
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