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Association between postoperative delirium characteristics and 1-yr mortality. Associations between (a) maximum CAM-S score and 1-yr mortality and between (b) number of days of postoperative delirium and 1-yr mortality. Labels on the bars show number of deaths in each group and the total number of patients in the group. Error bars show 95% confidence interval around 1-yr mortality rate in each group. CAM-S, Confusion Assessment Method – Severity.
