Characteristics of participants, by delirium status.

DSM delirium = reference standard delirium.Dementia ascertained through IQCODE.Co-morbidity score = Charlson co-morbidity index.CRP C-reactive protein.AVPU = assessment of arousal where categories are Alert, Verbally-responsive, Pain-responsive, Unresponsive.Fi02 is scored as Y = supplemental oxygen; N = room air.*Aggregate information derived from multiple vignettes, therefore the standard errors (not shown) are not robust to the clustered nature of the data. The p values are derived from estimates with robust standard errors.Characteristics of participants, by delirium status.DSM谵妄（DSM delirium）作为谵妄的金标准。痴呆通过IQCODE确诊。共病评分即查尔森共病指数（Charlson co-morbidity index）。CRP即C反应蛋白（C-reactive protein）。AVPU为意识唤醒程度评估工具，其分级包括清醒（Alert）、语言反应型（Verbally-responsive）、疼痛反应型（Pain-responsive）、无反应型（Unresponsive）。Fi02评分规则为：Y代表需补充供氧，N代表吸入室内空气。*本研究的汇总信息来源于多个情景案例，因此未展示的标准误无法适配数据的聚类特性；P值由采用稳健标准误的估计值计算得出。按谵妄状态分组的参与者特征。