Chunk #23 — Methods — Construction of ERS and Assessment of its Predictive Power

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Environmental risk score as a new tool to examine multi-pollutants in epidemiologic research: an example from the NHANES study using serum lipid levels.

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In order to assess risk stratification/discrimination power of the ERS we further categorized ERS by its quintiles and conducted logistic regression for the binary phenotype and categorical ERS. We used the odds ratio (OR) for the highest quintile vs. the lowest quintile of ERS to measure the risk stratification properties of ERS.