Table 1 Outcome measures and their minimum detectable change

The Mini Mental Status Examination (MMSE)

30-point test of cognition

✔

✔

3 points [15, 16]

Berg Balance Scale (BBS)

14-item functional measure of balance impairment

✔

✔

5-7 points depending on baseline [17, 18]

The Performance Oriented Mobility Assessment (POMA)

Assessment of mobility, balance and gait: 12 points for the gait component and 16 points for the balance component

✔

✔

5 points [19, 20]

The Timed Up and Go (TUG)

Evaluation of sequential locomotor tasks including chair transfers and ambulation with well-established norms

✔

✔

4 seconds [21–23]

Elderly Mobility Scale (EMS)

20-point multidimensional assessment of mobility in frail elderly patients

✔

✔

3 points [23, 24]

Lawton Brody

Validated scale to measure instrumental activities of daily living

✔

✔

1 point [25, 26]

Frailty Index

37 variables describing the proportion of accumulated deficits in an individual (baseline frailty)

✔

N/A

Goal Attainment Scaling (GAS)

Clinometric scale describing changes in patient directed goals

✔

✔

Any change