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Table 2 Marginal distribution of patients’ own classification of their health status based on the five attributes, each with three levels, of the EQ-5D-3 L instrument (n = 163)

From: A preference-based item response theory model to measure health: concept and mathematics of the multi-attribute preference response model

EQ-5D-3 L attributes and levels

Radbouda(n = 75)

MST (n = 35)

UMCG (n = 53)

Mobility

 No problems (1)

45 (60.0)

20 (57.1)

29 (54.7)

 Some problems (2)

30 (40.0)

15 (42.9)

18 (34.0)

 Confined to bed (3)

  

6 (11.3)

Self-care

 No problems (1)

63 (84.0)

31 (88.6)

40 (75.5)

 Some problems (2)

12 (16.0)

4 (11.4)

10 (18.9)

 Unable to (3)

  

3 (5.7)

Usual activities

   

 No problems (1)

38 (50.7)

12 (34.3)

26 (49.1)

 Some problems (2)

34 (45.3)

21 (60.0)

24 (45.3)

 Unable to (3)

3 (4.0)

2 (5.7)

3 (5.7)

Pain/Discomfort

 No (1)

34 (45.3)

13 (37.1)

18 (34.0)

 Moderate (2)

36 (48.0)

21 (60.0)

32 (60.4)

 Extreme (3)

5 (6.7)

1 (2.9)

3 (5.7)

Depression/Anxiety

 Not (1)

59 (78.7)

25 (71.4)

36 (67.9)

 Moderately (2)

16 (21.3)

10 (28.6)

12 (22.6)

 Extremely (3)

  

5 (9.4)

  1. aRadboud Radboud University Nijmegen Medical Center, MST hospital Medisch Spectrum Twente, UMCG University Medical Center Groningen