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Table 1 Correlation coefficients r among items and domains of QLICD-PU (n = 153)

From: Development and validation of the peptic ulcer scale under the system of quality of life instruments for chronic diseases based on classical test theory and generalizability theory

Code

Items brief description in English

Physical

Psychological

Social

Specific

PH1

Take care of daily life (e.g. eating)?

0.70

0.14

0.34

0.06

PH2

Felt easily fatigued?

0.65

0.33

0.21

0.19

PH3

Have trouble walking 800 m or more?

0.76

0.12

0.24

0.04

PH4

Have trouble going up and down stairs?

0.71

0.32

0.20

0.04

PH5

Need to take medication?

0.65

0.33

0.23

0.19

PH6

A good appetite?

0.49

0.10

0.17

0.09

PH7

Satisfied with your sleep?

0.55

0.20

0.14

0.15

PH8

Felt pain or uncomfortable?

0.52

0.26

0.24

0.43

PS1

Memory and concentration affected?

0.39

0.46

0.40

0.16

PS2

Felt mentally miserable?

0.35

0.59

0.32

0.28

PS3

Felt lonely and helpless?

0.14

0.69

0.42

0.19

PS4

Felt pessimism and despair?

0.18

0.72

0.37

0.26

PS5

Worried about disease?

0.31

0.72

0.27

0.39

PS6

Felt fretful or irritable?

0.16

0.56

0.24

0.31

PS7

Felt nervous and anxious?

0.26

0.68

0.20

0.31

PS8

Stop medication because of side effects?

0.10

0.44

0.05

0.14

PS9

To be a burden to the family?

0.36

0.55

0.37

0.23

PS10

Felt self-abasement because of disease?

0.03

0.69

0.20

0.23

PS11

Hidden emotions but could not forget?

0.11

0.68

0.29

0.27

SO1

Interfered with work/housework?

0.29

0.35

0.53

0.18

SO2

Family roles?

0.16

0.03

0.38

0.10

SO3

Decreased caring and attention to family?

0.28

0.36

0.34

0.20

SO4

Good relations with family?

0.01

0.09

0.56

0.04

SO5

Help and support from family?

0.06

0.03

0.52

0.08

SO6

Affected participating in leisure activities?

0.18

0.35

0.41

0.07

SO7

Treat illness positively and optimistically?

0.23

0.30

0.63

0.23

SO8

Treatments received good for curing?

0.12

0.22

0.35

0.16

SO9

Economic problems caused by illness?

0.11

0.35

0.48

0.27

SO10

Support from friends and relatives?

0.13

0.01

0.51

0.06

SO11

Affected sexual activities?

0.27

0.27

0.35

0.16

PU1

Have pain (sore) in epigastria?

0.28

0.11

0.11

0.53

PU2

Have heartburn in epigastria?

0.08

0.17

0.14

0.49

PU3

Have pain/discomfort at night or hungry?

0.17

0.08

0.05

0.51

PU4

Pain/uncomfortable relieved after dinner?

0.13

0.00

0.07

0.33

PU5

Have acid regurgitation?

0.06

0.17

0.05

0.48

PU6

Have any belch (burps)?

0.19

0.12

0.08

0.49

PU7

Abdominal distension?

0.03

0.07

0.15

0.53

PU8

Salivate (flow saliva)?

0.06

0.26

0.00

0.38

PU9

Move bowels normal?

0.27

0.10

0.19

0.34

PU10

Upset/distress for gastroscopy inspection?

0.13

0.21

0.05

0.36

PU11

Vexed for food limit?

0.05

0.30

0.12

0.43

PU12

Troubled/limit by dine at fix time?

0.14

0.18

0.14

0.35

PU13

Worried about causing severe disease?

0.04

0.36

0.22

0.51

PU14

Vexed for often taking stomach medications?

0.01

0.31

0.17

0.55

  1. Correlations between each item and its designated domain are in bold type
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BMC Gastroenterology

ISSN: 1471-230X

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