Table 2.

Preoperative data.

Preoperative data	Items
Demographic data	age, gender, height, weight, BMI
Risk classification	ASA, RCRI, NYHA, MET
Surgical discipline	orthopedics, breast surgery, gynecology/obstetrics, urology/kidney, upper gastrointestinal tract, lower gastrointestinal tract, hepato-biliary, vascular surgery, head/neck, plastic/dermatological surgery, cardiac surgery, thoracic surgery (lungs/esophagus), others
Surgical risk	low, intermediate, high
Routine-laboratory	hemoglobin, hematocrit, HbA1c, leukocyte count, sodium, potassium, creatinine, total protein, C-reactive protein, troponin, NT pro-BNP
Long-term medication	anticholinergics, benzodiazepines, tricyclic antidepressants, SSRI, hypnotics, opioids, others, number of medications
Delphi score	age, physical activity, alcoholism, hearing impairment, history of delirium, emergency surgery, open surgery, ICU admission, C reactive protein
Alcohol consumption	AUDIT-C
Quality of life	EQ-5D-5L
Cognitive impairment	MOCA (patient testing), IQCODE (survey of relatives)

BMI: Body Mass Index, ASA: American Society of Anesthesiology, RCRI: revised Cardiac Risk Index, NYHA: New York Heart Association, MET: Metabolic Equivalent of Task, ICU: Intensive Care Unit, SSRI: Selective serotonin reuptake inhibitor, AUDIT-C: Alcohol Use Disorders Identification Test-Consumption.