The model generates a CSV file containing raw data, which can then be wrangled and presented separately, either following a model run(s) or at any time after the model has been run. The table below identifies the column headers and provides a brief description
Column name | Description |
---|---|
P_ID | Patient ID |
run_number | Run number in cases where the model is run repeatedly (e.g. 100x) to enable calculations of confidence intervals etc. |
time_type | Category that elapsed time represents e.g. 'call start', 'on scene', 'leave scene', 'arrive hospital', 'handover', 'time clear' |
timestamp | Elapsed time in seconds since model started running |
day | Day of the week as a string ('Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun') |
hour | Hour of call as integer between 0–23 |
weekday | String identifying whether the call started on a weekday or weekend |
month | Integer representing the month of the year (1–12) |
qtr | Integer representing the yearly quarter of the call (1–4) |
callsign | String representing callsign of resource (either HEMS or Ambulance service) |
triage_code | Call triage outcome represented as one of the AMPDS 'golden' codes (or OTHER) |
age | Integer representing patient age in years |
sex | String representing patient sex ('male', 'female') |
time_to_first_response | Integer representing time in minutes to first response (ambulance service or HEMS) |
time_to_cc | Integer representing time in minutes to first HEMS response |
cc_conveyed | Integer indicating whether HEMS conveyed patient (1 or 0) |
cc_flown | Integer indicating whether HEMS conveyed the patient by air (1 or 0) |
cc_travelled_with | Integer indicating whether patient was conveyed by ambulance but HEMS personnel travelled with the patient to hospital (1 or 0) |
hems | Integer indicating whether HEMS attended the incident (1 or 0) |
cc_desk | Integer indicating whether HEMS activation was due to critical care desk dispatch |
dispatcher_intevention | Integer indicating whether the ambulance service dispatcher activated HEMS for a called which did not meet auto-dispatch criteria (1 or 0) |