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. 2021 Dec 13;12(3):312–323. doi: 10.1016/j.jshs.2021.12.002

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© 2022 Published by Elsevier B.V. on behalf of Shanghai University of Sport.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig 2 — HRR quartiles risk for incident delirium over time. (A) Hazard ratios (±95%CIs) by HRR index groups (average and low) and risk for delirium compared to participants with high HRR as referenced using Cox proportional hazards regression models adjusted for age, sex, education, ethnicity, and socioeconomic deprivation. (B) Cumulative incidence plot (±95%CI shaded) showing percentage of cohort with a first diagnosis of delirium over time in each of the 3 HRR index groups. 95%CI = 95% confidence interval; HRR = heart rate response/recovery.