Fig. 3
From: Trajectories of depression in sepsis survivors: an observational cohort study
Trajectories of depressive symptoms within the intervention group: Trajectories of depressive symptoms are shown by median Major Depression Inventory (MDI) and Patient Health Questionnaire 9 (PHQ-9) sum scores of the trajectory classes. High scores indicate high impairment. Range of possible sum scores: MDI 0–50, PHQ-9: 0–27. Diagnostic thresholds for depression are labeled according to ICD-10 and DSM-IV. a PHQ-9 scores at 1, 2, 3, 4, 5, 6, 9 and 12 months after ICU discharge (high-frequency follow-up). The dashed lines show the trajectories considering only the 1-, 6- and 12-month follow-up. b MDI at 1, 6 and 12 months after ICU discharge (low-frequency follow-up)