Psychiatric (co-)diagnoses in critically ill patients. A retrospective cohort analysis with a control group matched for age, sex, diagnosis, and severity of illness.

Conditions: F00-F99
Mental and behavioural disorders

Registration Number: DRKS00034386

Lead Sponsor: Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Ulm

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Pending

Sex: All

Target Recruitment: 3000

Inclusion Criteria

Treatment in one of the surgical intensive care units during the study period (01.01.2013 - 29.02.2024).
Presence of psychiatric illness prior to ICU treatment. Psychiatric disorders are defined as those listed in Chapter V Mental and Behavioral Disorders (F00-F99).

Exclusion Criteria

Psychiatric disorder acquired during intensive care treatment (postoperative delirium, treatment-related stress disorder).
Diagnosis: F17.2 - Mental and Behavioral Disorder Caused by Tobacco (Tobacco dependence as the sole diagnosis is not considered a separate psychiatric disorder).

Study & Design

Study Type: observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
- Length of stay in intensive care unit and total hospital stay<br>- Mortality (during the intensive care stay, during the hospital stay)<br><br>Question based on cluster analysis<br>- Can machine learning cluster analysis be used to identify risk groups, and do prior psychiatric illnesses play a relevant role?<br>- Are there subgroups within the psychiatric patient population that differ from other psychiatric patients in terms of mortality and complication risk?

Secondary Outcome Measures

Name	Time	Method
What is the effect of a pre-existing psychiatric illness on the cost of care compared to the control group?<br>- Treatment costs in the intensive care unit<br>- Number of psychiatric and psychosomatic consultations<br>- Pre- and postoperative administration of long-term psychiatric medication