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Cutoff Values for Screening Post-Intensive Care Syndrome Using the Post-Intensive Care Syndrome Questionnaire
1Department of Nursing, Youngsan University, Yangsan-si 50510, Republic of Korea.
Journal of Clinical Medicine
|June 13, 2025
Summary
This study establishes validated cutoff values for the Post-Intensive Care Syndrome Questionnaire (PICSQ), enabling early screening of PICS in ICU survivors to improve long-term health outcomes.
Area of Science:
- Critical Care Medicine
- Patient Outcomes Research
Background:
- Post-intensive care syndrome (PICS) significantly impacts over 50% of ICU survivors.
- The Post-Intensive Care Syndrome Questionnaire (PICSQ) lacks validated cutoff values for effective screening.
- Early identification of PICS is crucial for mitigating long-term health impairments.
Purpose of the Study:
- To determine optimal cutoff values for the mental, physical, and cognitive domains of the PICSQ.
- To facilitate early and accurate screening of PICS in intensive care unit survivors.
Main Methods:
- Utilized receiver operating characteristic (ROC) curve analyses on data from 475 ICU survivors.
- Employed criterion tools including HADS, PDS, ADL, and MoCA for validation.
- Assessed quality of life and hospital readmission rates based on PICSQ cutoff classifications.
Main Results:
- Identified optimal PICSQ cutoff values: ≥3 for mental, ≥7 for physical, and ≥2 for cognitive domains.
- Achieved high diagnostic accuracy with AUC values of 0.83 (mental), 0.84 (physical), and 0.80 (cognitive).
- Higher PICSQ scores correlated with significantly reduced quality of life and increased hospital readmissions.
Conclusions:
- The established PICSQ cutoff values can aid in the early screening of PICS.
- Timely PICS identification through these cutoffs can lead to prompt interventions and improved patient outcomes.
- Further validation in diverse populations is recommended to broaden the applicability of these findings.

