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Table 11 Sensitivity and specificity of the estimates for minimal important difference (MID) for 4 items

From: Patient-reported questionnaires in MS rehabilitation: responsiveness and minimal important difference of the multiple sclerosis questionnaire for physiotherapists (MSQPT)

Item

Global rating questions used

MID improvement

Specificity

Sensitivity

MID deterioration

Specificity

Sensitivity

M4

Balance, Arm function

1

0.52–0.81

*

1

0.52–0.81

0.20–0.67

2

*

*

2

*

*

M8a

Walking, Balance

1

0.40–0.71

0.1–0.25

1

0.45–0.71

0.36–0.67

2

0.47–0.69

0.1–0.3

2

0.40–0.68

*

M8b

Walking, Balance

1

0.47–0.65

**

1

0.47–0.65

0.32–0.53

2

0.42–0.70

0.0–0.5

2

0.43–0.70

0.36–0.83

M10

Walking, Balance

1

0.41–0.74

0.00–0.33

1

0.41–0.74

0.36–0.60

2

0.43–0.74

*

2

0.4–0.80

0.67–0.8

3

*

*

3

*

*

  1. M4 taking a shower, M8A walking distance, M8B walking time, M10 getting in and out of the car; *n<4; **not computable, *** no values available. Italic numbers represent the best MID