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Table 1 Characteristics and evaluation assessment of the study population (n = 163)

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

 

Radbouda(n = 75)

MST (n = 35)

UMCG (n = 53)

Mean Age, yrs. (sd)

63.6 (9.4)

53.0 (21.4)

48.3 (17.8)

Gender (%)

 Female

36 (50.0)

20 (57.1)

27(50.9)

 Male

36 (50.0)

15 (42.9)

26 (49.1)

Diagnosis (%)

 Liver transplant

  

15 (28.3)

 Liver-related disease?

  

27 (50.9)

 CVA

 

13 (37.1)

 

 IBD

 

22 (62.9)

 

 Cancer

48 (64.0)

  

 RA

27 (36.0)

  

 Paraplegic

  

9 (17.0)

 Other/Unknown

  

2 (3.8)

Education (%)

 Lower

41 (54.7)

6 (17.1)

19 (35.8)

 Middle

15 (20.0)

19 (54.3)

6 (11.3)

 Upper

19 (25.3)

10 (28.6)

20 (37.7)

 Other

  

8 (15.1)

Mean EQ VAS (sd)

75.2 (14.7)

68.5 (13.5)

72.1 (17.5)

Difficulty assessment (%)

 Very easy

10 (28.6)

9 (17.0)

 Easy

16 (45.7)

17 (32.1)

 Neutral

5 (14.3)

20 (37.7)

 Difficult

2 (5.7)

6 (11.3)

 Very difficult

2 (5.7)

1 (1.9)

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