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Table 4 Relative validity of the NMDIP, domain specific and generic measurement instruments compared, using subgroups of Quality of Life (n = 702)

From: Stability and relative validity of the Neuromuscular Disease Impact Profile (NMDIP)

 

Group A (n = 53)

Very poor or poor QoL

Group B (n = 175)

Neither poor nor good QoL

Group C (n = 474)

Good or very good QoL

Kruskal-Wallis H

Chi Square

RVb

Group

A-Ba

Group

B-Ca

Group

A-Ca

 

n

Median

(IQR)

n

Median

(IQR)

n

Median

(IQR)

es

es

es

NMDIP

 Muscle Functions

52

5 (2)

167

4 (2)

439

3 (2)

81.4

50

0.34

0.23

0.35

 Movement Functions

46

4 (3)

148

3 (2)

400

2 (3)

83.8

51

0.30

0.27

0.35

 Excretion and Reproductive Functions

36

3 (5)

129

2 (2)

344

1 (2)

40.6

25

0.21

0.22

0.25

 Swallowing and Speech Function

49

2 (3)

162

0 (1)

458

0 (1)

43.6

27

0.26

0.14

0.27

 Mental Functions and Pain

45

8 (4)

147

6 (4)

405

3 (4)

147.7

90

0.28

0.42

0.40

 Activities of Moving around

53

10 (8)

175

4 (6)

474

3 (5)

75.2

46

0.36

0.19

0.35

 Self-care and Domestic Activities

53

10 (13)

175

3 (8)

473

2 (4)

79.9

49

0.32

0.22

0.33

 Participation in Life Situations

52

4.5 (5)

175

2 (4)

468

0 (2)

103.7

63

0.32

0.26

0.39

SF-36

 Physical Functioning

53

12 (4)

175

17 (8)

473

21 (10)

85.7

52

0.38

0.23

0.34

 Mental Health

53

20 (6)

175

22 (6)

473

25 (4)

132.5

81

0.27

0.35

0.38

 Social Functioning

53

5 (3)

175

7 (2)

473

9 (2)

138.3

84

0.31

0.36

0.38

WHOQOL-bref

 Physical Health and Autonomy

53

3 (5)

173

3 (0)

466

3 (0)

117.7

72

0.21

0.41

0.34

 Psychological Health

53

3 (0)

173

3 (1)

466

4 (0)

163.8

100

0.31

0.40

0.41

 Social Relations

50

3 (1)

170

4 (1)

450

4 (0)

61.3

37

-

0.25

0.25

GARS

 Activities of Daily Living

53

26 (16)

175

17 (10)

474

13 (7)

80.6

49

0.37

0.20

0.35

 Instrumental Activities of Daily Living

52

22 (12)

175

15 (9)

472

11 (9)

82.8

51

0.34

0.23

0.33

IPAQ

 Autonomy Indoors

53

19 (9)

175

14 (5)

473

12 (7)

109.6

67

0.32

0.29

0.36

 Family Role

53

24 (8)

175

20 (8)

471

15 (8)

127.6

78

0.28

0.34

0.37

 Autonomy Outdoors

53

15 (4)

174

11 (5)

471

8 (5)

157.6

96

0.42

0.35

0.43

 Social Relations

53

15 (6)

175

13 (3)

472

11 (5)

134.1

82

0.26

0.35

0.37

  1. nmdip, gars, IPAQ scales: higher scores = lower quality of life, sf-36, and WHOQOL-bref scales: higher scores = higher quality of life. Interquartile range (IQR) = Q3-Q1. - = not statistically significant. Bonferroni correctiona = 0.02 (p-value 0.05/3). RV relative validity.b = score indicating the relative validity with score 100 related to the highest H-statistic. ES effect size