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. 2016 Jul 13;184(3):249–258. doi: 10.1093/aje/kww068

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© The Author 2016. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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Figure 3. — Influence of misspecification of measurement error variance on relative bias in exposure effect estimates from 2-interval simulations using naive, direct simulation-extrapolation (SIMEX)-corrected, and indirect SIMEX-corrected marginal structural models. A) first-interval estimates; B) second-interval estimates. The dotted line at X = 1.0 is used to indicate the scenario with correctly specified measurement error variance. Data were generated according to Figure 1B. Note that the axis scales differ between plots.