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Table 2 MyPOS principal component pattern matrix with Promax rotation, forced extraction of three components, missing data excluded pairwise (n = 380)

From: Improving the assessment of quality of life in the clinical care of myeloma patients: the development and validation of the Myeloma Patient Outcome Scale (MyPOS)

Abbreviated item wordingsa

Components

Corrected item-total correlation

 

(1) Symptoms & function

(2) Emotional response

(3) Healthcare support

 

Pain

.62

.08

-.01

.58

Fatigue or lack of energy

.80

.01

-.17

.59

Shortness of breath

.59

.01

-.17

.40

Diarrhoea

.25

.15

-.14

.25

Constipation

.45

-.14

.15

.34

Nausea

.45

.11

.05

.47

Vomiting

.39

-.07

.04

.28

Mouth problems

.30

.27

-.19

.36

Poor mobility

.88

-.15

-.01

.62

Tingling in the hands and/or feet

.47

-.18

.06

.28

Difficulty remembering things

.40

.20

-.20

.39

Usual activities without help from others

.74

.04

.04

.66

Hobbies and leisure activities

.74

.00

.07

.66

Quality time with family and friends

.58

-.03

.18

.54

á…Ÿ

Worry about sex life

-.30

.74

-.21

.26

Feeling depressed

.17

.53

.06

.59

Anxious or worried about illness or treatment

.13

.63

.16

.65

Worry about infections

.11

.55

-.04

.46

Worry about physical appearance

-.06

.64

.06

.44

Worry about financial situation

-.12

.73

.05

.45

Worry that illness will get worse

.05

.67

.15

.60

Able to cope with your illness and treatment

.33

.39

.14

.63

á…Ÿ

Doctors or nurses – contact if needed

.01

.04

.66

.36

Doctors and nurses – knowledge and skill

-.06

-.04

.86

.33

Doctors and nurses – care and respect

-.14

-.00

.81

.28

Enough information about illness and treatment

-.05

.02

.60

.32

Enough information about the future

.22

-.02

.49

.43

á…Ÿ

Eigenvalue

7.34

2.15

1.64

-

Percentage variance explained

27.2

8.0

6.1

-

Cumulative percentage variance explained

27.2

35.1

41.2

-

  1. aFull item wordings are shown Additional file 1: Table S5.
  2. Figures in bold indicate loadings ≥ .30.
  3. Figures in italics indicate the component/subscale to which each item is assigned.