Table 1 Secondary factors

Age^a

Fracture severity (displaced or non-displaced and open or closed)^a

Premorbid living situation (home alone, home with family/friend(s) or external care facility (supported residential or residential aged care services))^a

Gender^a

Treatment method (conservative; surgical or conservative and surgical)^a

Premorbid level of mobility (independent or assistance by another or others)^a

Additional principal acute medical diagnoses^b

Orthopedic restrictions (restrictions or minimal restrictions)^a,c

Premorbid use of gait aid (nil aid or SPS/FAC; walking frame or standing machine/sling hoist)^a

Additional significant injuries, such as bilateral PHFs, other fractures or brain hemorrhage^b

Premorbid level of personal self-care (independent or assistance by another or others)^a

Dementia diagnosis^b

Dominance of upper limb affected (dominant, non-dominant or not documented))^a

Osteoporosis diagnosis^b

Charlson Comorbidity Index (CCI) score [24], retrospectively scored^b