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Table 1 Item selection details

From: Development and validation of a preference based measure derived from the Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR) for use in cost utility analyses

Item

%

affirmation

Corrected

item-total

correlation

Factor

loading

Rasch

location

Mean

change

7

32.2

.49

.54

0.84

0.07

12

65.9

.54

.60

-1.25

0.07

13

14.4

.30

.33

2.09

0.16

15

38.9

.64

.69

0.42

0.10

24

19.3

.46

.50

1.88

0.09

25

60.9

.64

.69

-1.00

0.00