Zachary J Kunicki, Thomas Bayer, Lan Jiang, Melanie L Bozzay, McKenzie J Quinn, Alyssa N De Vito, Sheina Emrani, Sebhat Erqou, John E McGeary, Andrew R Zullo, Matthew S Duprey, Mriganka Singh, Jennifer M Primack, Catherine M Kelso, Wen-Chih Wu, James L Rudolph
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Comparing Lookback Periods to Ascertain Alzheimer's Disease and Related Dementias.
Claims data are a valuable resource for studying Alzheimer's disease and related dementias (ADRD). Alzheimer's disease and related dementias is often identified using a list of claims codes and a fixed lookback period of 3 years of data. However, a 1-year lookback or an approach using all-available lookback data could be beneficial based on different research questions. Thus, the purpose of this study was to compare 1-year and all-available lookback approaches to ascertaining ADRD compared to the standard 3-year approach. Using a cohort of Veterans hospitalized for heart failure (N = 373, 897), our results suggested high agreement (93% or greater) between the lookback periods. The 1-year lookback period had lower sensitivity (60%) and underestimated the prevalence of ADRD. These results suggest that 1-year and all-available lookback periods are viable approaches when using claims data.
期刊介绍：
American Journal of Alzheimer''s Disease and other Dementias® (AJADD) is for professionals on the frontlines of Alzheimer''s care, dementia, and clinical depression--especially physicians, nurses, psychiatrists, administrators, and other healthcare specialists who manage patients with dementias and their families. This journal is a member of the Committee on Publication Ethics (COPE).
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