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Table 2 Longitudinal agreement between the 95% MDC and the reference method

From: Minimal detectable change of gait and balance measures in older neurological patients: estimating the standard error of the measurement from before-after rehabilitation data thanks to the linear mixed-effects models

 

Reference

95% MDC

got better

unchanged

got worse

got better

unchanged

got worse

gait speed (%)

53 (48.6)

51 (46.8)

5 (4.6)

57 (52.3)

47 (43.1)

5 (4.6)

TUG test duration – ln (%)

49 (45.0)

55 (50.5)

5 (4.6)

57 (52.3)

46 (42.2)

6 (5.5)

STW duration – ln (%)

12 (11.0)

95 (87.2)

2 (1.8)

8 (7.3)

97 (89.0)

4 (3.7)

Turning duration – ln (%)

12 (11.0)

94 (86.2)

3 (2.8)

10 (9.2)

88 (80.7)

11 (10.1)

ω – ln (%)

23 (21.1)

84 (77.1)

2 (1.8)

24 (22)

75 (68.8)

10 (9.2)

  1. STW: sit to walk; ω: peak angular velocity along the vertical axis during the first turning phase of the TUG test. The number of subjects and their percentage (between brackets) is reported. Reference: reference method (i.e. the “all five repetitions better than the best” method) for establishing the patient’s change after rehabilitation (i.e. in session T1 compared with T0). 95% MDC: patient’s change is defined according to the 95% minimal detectable change (MDC) from the reduced tests. After rehabilitation, participants got better (i.e. increased their gait speed, decreased their TUG test, STW and turning duration or increased ω), did not change (unchanged) or got worse