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Fig. 4 | BMC Medical Research Methodology

Fig. 4

From: Sampling weighting strategies in causal mediation analysis

Fig. 4

Standard Deviation (SD) vs Mean Standard Error (SE) of estimates for Scenario 1. Note: The plotting symbols 1 to 4 indicate the sampling methods: 1. \(S \sim U\), 2. \(S \sim U + M\), 3. \(S \sim U + A\), 4. \(S \sim 1\). The colors indicate the sampling weighting strategy: Neither stage: no sampling weights in either stage; 1st stage: only use sampling weights to estimate mediation weights; 2nd stage: only use sampling weights in outcome model; Both stages: use sampling weights in both stages

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BMC Medical Research Methodology

ISSN: 1471-2288

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