Table 1.

Input variables.

Type	Input variables
General	Patient ID
Demographic data	Age Biological sex Ethnicity
Observational data (vital signs and other measures)	Observation date, time, and location Encounter: ID and type Heart rate Temperature Respiratory rate Need of oxygen therapy Level of consciousness or new confusion (Alert, Verbal, Pain, or Unresponsive score) Blood pressure (systolic and diastolic) Paired value One (lying blood pressure) Paired value Two (standing blood pressure) Oxygen therapy percentage—inspired oxygen fraction (FiO2) Oxygen saturation (SpO2) Nursing concern Urine output Pain score Mask code (oxygen therapy device used) Partial Obs set (NEWS2a variables) Partial Obs set (additional variables)
BMI data (in separate data file)	Height (numeric, units, date, and time) Weight (numeric, units, date, and time) BMI (score date and time)
Outcome-related data	Mortality Cardiac arrest Resuscitation Unplanned admission to critical care: include either intensive therapy unit or high-dependency unit Sepsis NEWS2 score Northumbria Healthcare NHSb Foundation Trust risk rating (NuTH)- overwrite thresholds (NuTH specific)

^aNEWS2: National Early Warning Score.

^bNHS: National Health Service.