The 5-Year Incidence of Mental Disorders in a Population-Based ICU Survivor Cohort

Jitender Sareen, Kendiss Olafson, Maia S. Kredentser, O. Joseph Bienvenu, Marcus Blouw, James M. Bolton, Sarvesh Logsetty, Dan Chateau, Yao Nie, Charles N. Bernstein, Tracie O. Afifi, Murray B. Stein, William D. Leslie, Laurence Y. Katz, Natalie Mota, Reneé El-Gabalawy, Sophia Sweatman, Ruth Ann Marrie

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Objective: To estimate incidence of newly diagnosed mental disorders among ICU patients. Design: Retrospective-matched cohort study using a population-based administrative database. Setting: Manitoba, Canada. Participants: A total of 49,439 ICU patients admitted between 2000 and 2012 were compared with two control groups (hospitalized: N = 146,968 and general population: N = 141,937), matched on age (± 2 yr), sex, region of residence, and hospitalization year. Intervention: None. Measurements and Main Results: Incident mental disorders (mood, anxiety, substance use, personality, posttraumatic stress disorder, schizophrenia, and psychotic disorders) not diagnosed during the 5-year period before the index ICU or hospital admission date (including matched general population group), but diagnosed during the subsequent 5-year period. Multivariable survival models adjusted for sociodemographic variables, Charlson comorbidity index, admission diagnostic category, and number of ICU and non-ICU exposures. ICU cohort had a 14.5% (95% CI, 14.0-15.0) and 42.7% (95% CI, 42.0-43.5) age- A nd sex-standardized incidence of any diagnosed mental disorder at 1 and 5 years post-ICU exposure, respectively. In multivariable analysis, ICU cohort had increased risk of any diagnosed mental disorder at all time points versus the hospitalized cohort (year 5: Adjusted hazard ratio, 2.00; 95% CI, 1.80-2.23) and the general population cohort (year 5: Adjusted hazard ratio, 3.52; 95% CI, 3.23-3.83). A newly diagnosed mental disorder was associated with younger age, female sex, more recent admitting years, presence of preexisting comorbidities, and repeat ICU admission. Conclusions: ICU admission is associated with an increased incidence of mood, anxiety, substance use, and personality disorders over a 5-year period.

Original languageEnglish (US)
Pages (from-to)E775-E783
JournalCritical care medicine
Volume48
Issue number8
DOIs
StatePublished - Aug 1 2020

Keywords

  • anxiety
  • critical illness
  • depression
  • postintensive care syndrome
  • posttraumatic stress disorder

ASJC Scopus subject areas

  • Critical Care and Intensive Care Medicine

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