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BioMed Research International
Volume 2017, Article ID 5192640, 8 pages
Research Article

Self-Rated Health as a Predictor of Death after Two Years: The Importance of Physical and Mental Wellbeing Postintensive Care

1Department of Anesthesiology and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
2Department of Public Health, Section of Social Medicine, Copenhagen University, Copenhagen, Denmark
3Optum Outcomes, Lincoln, RI, USA
4Department of Anesthesiology and Intensive Care, Nordsjællands Hospital, Hillerød, Denmark
5Department of Respiratory Medicine, Herlev Gentofte Hospital, Hellerup, Denmark
6CHIP & PERSIMUNE, Department of Infectious Diseases, Finsencenteret, Rigshospitalet, Copenhagen, Denmark

Correspondence should be addressed to Jens U. Jensen; kd.hnoiger@nesnej.kirlu.snej

Received 29 March 2017; Revised 20 June 2017; Accepted 18 July 2017; Published 21 August 2017

Academic Editor: Sabine Rohrmann

Copyright © 2017 Marie Vejen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. The objective of this study is, among half-year intensive care survivors, to determine whether self-assessment of health can predict two-year mortality. Methods. The study is a prospective cohort study based on the Procalcitonin and Survival Study trial. Half-year survivors from this 1200-patient multicenter intensive care trial were sent the SF-36 questionnaire. We used both a simple one-item question and multiple questions summarized as a Physical Component Summary (PCS) and a Mental Component Summary (MCS) score. The responders were followed for vital status 730 days after inclusion. Answers were dichotomized into a low-risk and a high-risk group and hazard ratios (HR) with 95% confidence interval (CI) were calculated by Cox proportional hazard analyses. Conclusion. We found that self-rated health measured by a single question was a strong independent predictor of two-year all-cause mortality (HR: 1.8; 95% CI: 1.1–3.0). The multi-item component scores of the SF-36 also predicted two-year mortality (PCS: HR: 2.9; 95% CI 1.7–5.0) (MCS: HR: 1.9; 95% CI 1.1–3.4). These results suggest that self-rated health questions could help in identifying patients at excess risk. Randomized controlled trials are needed to test whether our findings represent causality.