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Table 1 Structure of the dataset used for imputation

From: Using imputed pre-treatment cholesterol in a propensity score model to reduce confounding by indication: results from the multi-ethnic study of atherosclerosis

Observations Y = Pre-treated cholesterol X = Post-treated cholesterol Z = Covariates
New lipid-lowering medication users (N = 1286) Exam dependent cholesterol levels (exam prior to starting lipid-lowering medication) Exam dependent cholesterol levels (exam after starting lipid-lowering medication) Exam dependent covariates (exam after starting lipid-lowering medication)
Lipid-lowering medication users at baseline (N = 1086) Missing Post-treated cholesterol from exam 1 Baseline covariates from exam 1