Application of isotemporal substitution model in epidemiological research.
10.3760/cma.j.cn112338-20220210-00108
- Author:
Yu Tong WANG
;
Hui Meng LIU
;
Sui Xia CAO
;
Kun XU
;
Bin Yan ZHANG
;
Ya Ting HUO
;
Jing Chun LIU
;
Ling Xia ZENG
;
Shao Nong DANG
;
Hong YAN
;
Bai Bing MI
- Publication Type:Journal Article
- MeSH:
Humans;
Cohort Studies;
Epidemiologic Studies;
Cardiovascular Diseases;
China/epidemiology*
- From:
Chinese Journal of Epidemiology
2022;43(11):1842-1847
- CountryChina
- Language:Chinese
-
Abstract:
Isotemporal substitution model is a powerful tool to explore the real association between physical behavior and health outcomes, which has the potential of the application in large-scale cohort study. This paper systematically introduces the principle of isotemporal substitution model and its implementation method in specific analysis to provide analytical ideas for the epidemiological research related to physical behavior in China. The baseline data of Regional Ethic Cohort Study in Northwest China conducted in Shaanxi province were used to analyze the relationship between physical behavior and cardiovascular disease with single-factor model, partition model and isotemporal substitution model. The advantages and disadvantages of different models were compared, and the advantages of isotemporal substitution model in quantifying physical activity health risk were introduced. Isotemporal substitution model could qualify physical behavior and health outcomes, which has wide application value in epidemiological research.
