Table 2

Predictor outputs of frailty risk prediction model (dependant variables)

Name	Time span	Description	Comments
Inpatient mortality	Current spell	Indicates if the discharge destination was death
30-day emergency readmission	30 days from discharge	Indicates if the patient had an emergency admission within 30 days of discharge from the current spell
Increase in functional dependence	Current spell	Binary outcome indicates if the patient's discharge destination was associated with a higher level of functional dependence than the admission source	See functional dependence tiers below

Tier	Values in tier
1	The usual place of residence, including no fixed abode Temporary place of residence when usually resident elsewhere, for example, hotels and residential educational establishments
2	Local authority part 3 residential accommodation: where care is provided Non-NHS (other than Local Authority) run residential care home
3	NHS run nursing home, residential care home or group home Non-NHS (other than Local Authority) run nursing home
4	NHS other hospital provider: ward for general patients or the younger physically disabled or A&E department Non-NHS run hospital
5	Non-NHS (other than Local Authority) run hospice