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Table 5 Convergent and discriminant validity of QLQ-CLL17 (correlation coefficient)

From: Validation of the Chinese EORTC chronic lymphocytic leukaemia module – application of classical test theory and item response theory

 

WF

SB

PC

EQ-5D-5 L

 Mobility

0.242***

0.435***

0.413***

 Self-care

0.202***

0.292***

0.314***

 Usual activities

0.268***

0.410***

0.397***

 Pain/discomfort

0.298***

0.473***

0.412***

vAnxiety/depression

0.573***

0.440***

0.439***

 Utility

−0.457***

− 0.569***

− 0.549***

QLQ-C30a

 Global health status

−0.446***

− 0.537***

− 0.577***

Functional scales

 Physical functioning

−0.405***

−0.633***

− 0.655***

 Role functioning

−0.41***

− 0.55***

− 0.563***

 Emotional functioning

− 0.634***

− 0.583***

− 0.568***

 Cognitive functioning

− 0.511***

− 0.614***

− 0.601***

 Social functioning

− 0.638***

−0.53***

− 0.564***

Symptom scales

 Fatigue

0.475***

0.679***

0.713***

 Nausea and vomiting

0.243***

0.444***

0.414***

 Pain

0.397***

0.65***

0.538***

 Dyspnoea

0.424***

0.645***

0.652***

 Insomnia

0.437***

0.488***

0.491***

 Appetite loss

0.393***

0.536***

0.524***

 Constipation

0.204***

0.38***

0.367***

 Diarrhea

0.164***

0.285***

0.243***

 Financial difficulties

0.55***

0.461***

0.419***

QLQ-CLL17

 WF

1.00

0.477***

0.544***

 SB

 

1.00

0.734***

 PC

  

1.00

  1. SB symptom burden, PC physical condition/fatigue, WF Worries/fears about health and functioning
  2. aThe score or global health status and functional scales of QLQ-C30 and utility of EQ-5D-5 L were reversed: a higher score means a better status and a lower score means a worse status
  3. * p< 0.05; ** p< 0.01; *** p< 0.001
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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