Table 1 List of variables/outcome parameters

Intensive care unit (ICU)

Documentation

ICU stay

T₁

Days

Mechanical ventilation

T₁

Days

Kidney replacement therapy

T₁

Days

Diagnoses at ICU discharge

T₁

ICD-10

Focus of infection

T₁

schematized (13)

Microbiological analysis

T₁

pathogen cluster (8)

Use of sedatives, steroids

T₁

schematized (4)

Patient reported

Educational status

T₁

schematized (2)

Socio-economic status

T_{-1 to 4}

schematized (8)

Outcome measure (patient ratings)

Health-related quality of life

T_{-1 to 4}

Short Form 36 Health Survey (SF-36) (36) [35]

Depressive symptoms

T_{1 to 4}

Major Depression Inventory (MDI) (12) [36]

Post-traumatic symptoms

T_{1 to 4}

Post-Traumatic Stress Syndrome 10-Questions Inventory (PTSS-10) (10) [37]

Motoric function

T_{2 to 4}

Short Musculoskeletal Function (XSMFA-D) (16) [38]

Impairment of swallowing, hearing, smelling

T-_{1 to 4}

4-stepped Likert scale (4)

Chronic pain

T_{1 to 4}

Graded Chronic Pain scale (GCPS) (7) [39]

Neuropathic symptoms

T_{1 to 4}

Neuropathic Symptom Score (NSS) (6) [40]

Nutritional status

T-_{1 to 4}

Malnutrition Universal Screening Tool (MUST) (4) [41]

Cognitive status

T_{1 to 4}

Telephone Interview of Cognitive Status (TICS-M) (21) [42, 43]

Sleep

T_{2 to 4}

Regensburg Insomnia Scale (RIS) (15) [44]

Medication addiction

T_{2 to 4}

Short form for medication use (KFM) (12) [45]

Patient assessment of care

T_{-1, 2 to 4}

Patient Assessment of Care for Chronic Conditions (PACIC) (20) [46, 47]

Compliance/adherence

T_{-1,2 to 4}

Modified Morisky questionnaire (4) [48]

Activities of daily life

T_{2 to 4}

(Instrumental) Activities of daily life (ADL/IADL) (11)

General practitioner (GP) documentation

Mortality

T_{2 to 4}

Current diagnoses

T_{-1,2 to 4}

ICD-10

GP consultation

T_{2 to 4}

Number

Stay in hospital

T_{2 to 4}

Days

Inability to work

T_{2 to 3}

Days

Medication

T_{-1, 2 to 4}

agent, dosage

Stay in rehabilitation clinic

T_{1 to 4}

Days

Remedies and therapeutic aids

T_{2 to 4}

schematized (1)

Nursing level

T_{2 to 4}

schematized (2)

Contacts to specialists, diagnostic procedures

T_{1 to 4}

schematized (7)