Fig. 1

Effects of admission to a room with natural light exposure on delirium outcomes, post hoc subgroup exploratory analyses. a Delirium, measured on the intensive care delirium screening checklist (ICDSC); b hallucinations item of the ICDSC; c severe agitation episodes intervened with antipsychotics during ICU stay. LIGHT indicates admission to a room with natural light exposure via windows. DARK indicates admission to a room without natural light exposure. ICU intensive care unit