Simulating the dynamics of atherosclerosis to the incidence of myocardial infarction, applied to the KORA population.
Stat. Med. 40, 3299-3312 (2021)
Analyzing epidemiological data with simplified mathematical models of disease development provides a link between the time-course of incidence and the underlying biological processes. Here we point out that considerable modeling flexibility is gained if the model is solved by simulation only. To this aim, a model of atherosclerosis is proposed: a Markov Chain with continuous state space which represents the coronary artery intimal surface area involved with atherosclerotic lesions of increasing severity. Myocardial infarction rates are assumed to be proportional to the area of most severe lesions. The model can be fitted simultaneously to infarction incidence rates observed in the KORA registry, and to the age-dependent prevalence and extent of atherosclerotic lesions in the PDAY study. Moreover, the simulation approach allows for non-linear transition rates, and to consider at the same time randomness and inter-individual heterogeneity. Interestingly, the fit revealed significant age dependence of parameters in females around the age of menopause, qualitatively reproducing the known vascular effects of female sex hormones. For males, the incidence curve flattens for higher ages. According to the model, frailty explains this flattening only partially, and saturation of the disease process plays also an important role. This study shows the feasibility of simulating subclinical and epidemiological data with the same mathematical model. The approach is very general and may be extended to investigate the effects of risk factors or interventions. Moreover, it offers an interface to integrate quantitative individual health data as assessed, for example, by imaging.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
Markov Chain ; Atherosclerosis ; Mechanistic Model ; Myocardial Infarction ; Simulation; Multistate Models; Vascular-lesions; Risk; Cancer; Arteriosclerosis; Definition; Committee; Council; Gender; Women
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Language
english
Publication Year
2021
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HGF-reported in Year
2021
ISSN (print) / ISBN
0277-6715
e-ISSN
1097-0258
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Volume: 40,
Issue: 14,
Pages: 3299-3312
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Wiley
Publishing Place
111 River St, Hoboken 07030-5774, Nj Usa
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Reviewing status
Peer reviewed
POF-Topic(s)
30203 - Molecular Targets and Therapies
30202 - Environmental Health
Research field(s)
Radiation Sciences
Genetics and Epidemiology
PSP Element(s)
G-501391-001
G-504000-010
G-504000-006
G-502900-001
G-504090-001
Grants
H2020 Euratom
Copyright
Erfassungsdatum
2021-06-28