To characterize the restraint period, the duration of the physical restraint period is collected from the patient record in the hospital file.

To characterize the restraint period, the patient's level of consciousness at the onset of physical restraint is collected from the patient record in the hospital file.

A score from validated neurological assessment tool (e.g., RASS, SAS, GCS, ICDSC, STESS) is recorded during the ICU stay. The specific tool used, as well as the scale of the score and meaning behind the score, depends on the neurological assessment documented in the patient register.

Disease severity is assessed using a standardized scoring system recorded in the patient register, such as APACHE II, SAPS II, and SOFA. The specific scoring system used depends on the clinical documentation available. The scale of the score and meaning behind the score depends on the severity assessment that has been applied.

The Charlson Comorbidity Index (CCI) is calculated based on pre-existing comorbidities and additional diagnoses. The CCI predicts the ten-year mortality for a patient who may have a range of comorbid conditions. It assigns weighted scores (from 0 to maximal 6) to 17 comorbid conditions (e.g., heart disease, diabetes, cancer), resulting in a total score ranging from 0 to 33, if the patient had the most severe form of each of the 17 conditions.

Routine laboratory value for e.g. CRP, albumin, LDH, CK, procalcitonin, white blood cell levels, creatinine, liver enzymes, blood gas analyses, and metabolic data, is collected. The specific parameters recorded may vary depending on the laboratory assessments documented in the patient register. All values will be reported using their respective units of measurement.

The complication occurring during or after physical restraint use, including infections, shock, hemorrhage, ischemia, hypoxia, arrhythmia, cardiopulmonary arrest, and organ failure, is recorded.

The Glasgow Outcome Score (GOS) is calculated based on the assessment of key clinical outcomes such as in-hospital mortality, survival, survival with neurofunctional alteration, return to premorbid neurological function, and hospital readmission to determine the patient outcome.

The GOS ranges from 1 (death) to 5 (good recovery).

The therapeutic intervention is document based on the data available in the patient register. This includes information on treatment duration, dosage and number of treatment medication, number of neuroleptic, sedative and analgesic drugs, invasive procedures, such as intubation, mechanical, ventilation, vasopressors, installation of central lines, nutrition, etc. The specific interventions recorded depend on the clinical documentation available. All reported values will follow their respective units of measurement.

Vital signs are analyzed based on the data available in the patient register. These may include blood pressure, heart rate, respiratory rate, oxygen saturation, body temperature, and level of consciousness. The specific parameters recorded depend on the clinical documentation available. All values will be reported using their respective units of measurement. The collected parameters are aggregated to provide an overall assessment of the patient's clinical condition.

Fluid balance data, including the administration of fluids such as blood products, crystalloids, and enteral/parenteral nutrition, are documented

The diagnostic procedure (invasive or non-invasive) during intensive care, such as radiologic imaging, lumbar puncture, etc. and restraint usage during such diagnostic procedures is documented.