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. 2020 May 6;20:156. doi: 10.1186/s12877-020-01553-4

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — Flowchart of incident dementia, death and censoring at annual interviews, 2012 to 2018, among older adult participants of the National Health and Aging Trends Study aged 66 and older who were free of dementia in 2012. ^a One-year cumulative incidence. Sampling weights were used to represent the population of Medicare beneficiaries aged 66 years and older in 2012. ^b In this study, censoring was defined as missing dementia data from an annual interview. Censoring was treated as a repeatable event and counts represent cumulative censoring. A small number of participants returned for an annual interview after missing a prior interview, and any data collected after the return was included in analyses. FIML analyses included all available data available up to the point of death or permanent censoring