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. 2021 May 19;14:11795441211016261. doi: 10.1177/11795441211016261

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© The Author(s) 2021

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — An assessment of the relationship between the number of dental amalgam filling surfaces and the incidence rate of arthritis^a per 10,000 weighted-person-years.

^aThe incidence rate of reported arthritis was derived from NHANES survey data among those persons with reported arthritis in the year of the NHANES survey collection. Those persons with reported arthritis at any time prior to the year of the NHANES survey collection were eliminated from the analyses.