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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