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Table 5 Pearson's product moment correlations between Gastrointestinal Symptom Rating Scale (GSRS) and Quality of Life in Reflux and Dyspepsia Questionnaire (QOLRAD) domains and Hospital Anxiety and Depression Scale (HAD).

From: Reliability and validity of the Gastrointestinal Symptom Rating Scale (GSRS) and Quality of Life in Reflux and Dyspepsia (QOLRAD) questionnaire in dyspepsia: A six-country study

Questionnaire and domain

Translation

 

Afrikaans*

German

Hungarian

Italian

Polish

Spanish

GSRS

(N = 108)

(N = 132)

(N = 124)

(N = 165)

(N = 134)

(N = 154)

Reflux

N/A

A: 0.29,

A: 0.44,

A: 0.16

A: 0.22

A: 0.15

  

D: 0.14

D: 0.44

D: 0.01

D: 0.04

D: 0.17

Abdominal pain

N/A

A: 0.48,

A: 0.38,

A: 0.29

A: 0.15

A: 0.35

  

D: 0.18

D: 0.38

D: 0.18

D: 0.03

D: 0.28

Indigestion

N/A

A: 0.44,

A: 0.38,

A: 0.27

A: 0.09

A: 0.33

  

D: 0.14

D: 0.36

D: 0.15

D: 0.13

D: 0.25

Diarrhoea

N/A

A: 0.35,

A: 0.26,

A: 0.10

A: 0.24

A: 0.31

  

D: 0.21

D: 0.19

D: -0.01

D: 0.21

D: 0.26

Constipation

N/A

A: 0.32,

A: 0.39,

A: 0.25

A: -0.00

A: 0.25

  

D: 0.07

D: 0.48

D: 0.11

D: -0.01

D: 0.16

QOLRAD

(N = 108)

(N = 123)

(N = 124)

(N = 174)

(N = 134)

(N = 154)

Emotional distress

N/A

A: 0.49,

A: 0.67,

A: 0.67

A: 0.40

A: 0.41

  

D: 0.36

D: 0.57

D: 0.49

D: 0.34

D: 0.44

Food/drink problems

N/A

A: 0.35,

A: 0.48,

A: 0.51

A: 0.35

A: 0.30

  

D: 0.18

D: 0.47

D: 0.47

D: 0.27

D: 0.28

Physical/social functioning

N/A

A: 0.36,

A: 0.60,

A: 0.64

A: 0.43

A: 0.37

  

D: 0.28

D: 0.64

D: 0.53

D: 0.38

D: 0.48

Sleep disturbance

N/A

A: 0.29,

A: 0.59,

A: 0.53

A: 0.29

A: 0.39

  

D: 0.14

D: 0.59

D: 0.41

D: 0.27

D: 0.36

Vitality

N/A

A: 0.41,

A: 0.64,

A: 0.59

A: 0.30

A: 0.43

  

D: 0.32

D: 0.61

D: 0.46

D: 0.30

D: 0.42

  1. *The HAD was not used in South Africa. A = HAD anxiety score; D = HAD depression score. Strong correlation, > 0.60; moderate correlation, 0.30–0.60; low (very low) correlation, < 0.30.