Depression screening predicts lower health-related quality of life in ICU survivors
This study was a cross-sectional analysis of pre-randomization data from a randomized controlled trial involving 319 intensive care unit survivors. The setting was multicenter primary care-based. The analysis focused on depression, anxiety, and post-traumatic stress symptoms as exposures. The primary outcome was health-related quality of life, measured using the EuroQol Five-Dimension Five-Level index and visual analog scale.
The mean EQ-5D-5L index was 0.71 with a standard deviation of 0.27 and a median of 0.81. The mean visual analog scale score was 60.7 with a standard deviation of 19.4 and a median of 60.0. Screening positive for depression using the PHQ-2 with a score greater than or equal to 3 points was associated with a median reduction of -0.13 in the EQ-5D-5L index. The 95% confidence interval for this reduction was -0.19 to -0.07.
For the visual analog scale, screening positive for depression was associated with a reduction of -12.45 points. The 95% confidence interval for this reduction was -17.93 to -6.96. Safety data, including adverse events and discontinuations, were not reported. Tolerability was not reported. Serious adverse events were not reported.
Key limitations include the cross-sectional nature of the analysis and insufficient understanding of the relative contribution of co-occurring symptoms. The study design prevents causal inference. Practice relevance supports routine brief depression screening in post-intensive care follow up.