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A glycemia-structured population model

机译:血糖结构的人口模型

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摘要

Structured models are population models in which the individuals are characterized with respect to the value of some variable of interest, called the structure variable. In the present paper, we propose a glycemia-structured population model, based on a linear partial differential equation with variable coefficients. The model is characterized by three rate functions: a new-adult population glycemic profile, a glycemia-dependent mortality rate and a glycemia-dependent average worsening rate. First, we formally analyze some properties of the solution, the transient behavior and the equilibrium distribution. Then, we identify the key parameters and functions of the model from real-life data and we hypothesize some plausible modifications of the rate functions to obtain a more beneficial steady-state behavior. The interest of the model is that, while it summarizes the evolution of diabetes in the population in a completely different way with respect to previously published Monte Carlo aggregations of individual-based models, it does appear to offer a good approximation of observed reality and of the features expected in the clinical setting. The model can offer insights in pharmaceutical research and be used to assess possible public health intervention strategies.
机译:结构化模型是人口模型,其中个体是根据一些感兴趣的变量(称为结构变量)的值来表征的。在本文中,我们基于具有可变系数的线性偏微分方程,提出了一种血糖结构的人口模型。该模型的特征在于三个速率函数:新成年人群体的血糖状况,与血糖有关的死亡率和与血糖有关的平均恶化率。首先,我们正式分析溶液的某些性质,瞬态行为和平衡分布。然后,我们从现实生活中的数据中识别出模型的关键参数和函数,并假设对速率函数进行了一些合理的修改,以获得更有利的稳态行为。该模型的有趣之处在于,尽管它相对于以前发布的基于个体的模型的蒙特卡洛聚合以完全不同的方式总结了人群中糖尿病的演变,但它的确提供了与观察到的现实和真实情况的良好近似。在临床环境中预期的功能。该模型可以提供有关药物研究的见解,并可以用于评估可能的公共卫生干预策略。

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