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Table 3 Assessment of internal consistency of individual items (HRQOL-BREF questionnaire questions) using Cronbach’s alpha coefficient (α-C) applied to group of parents of CHD and group of parents of children with minor illnesses

From: Assessment of quality of life among parents of children with congenital heart disease using WHOQOL-BREF: a cross-sectional study from Northwest Saudi Arabia

 α-C parents of CHD children (n = 120)α-C parents of children with minor illnesses (n = 80)
HRQOL-BREF questionnaire Items
 1. How would you rate your quality of life?0.840.87
 2. How satisfied are you with your health?0.840.87
 3. Do you feel physical pain prevents you from doing what you need to do?0.850.86
 4. How much do you need medical treatment to function in your daily life?0.850.88
 5. How much do you enjoy life?0.840.87
 6. To what extent do you feel your life to be meaningful?0.840.87
 7. How well are you able to concentrate?0.850.87
 8. How safe do you feel in your daily life?0.840.88
 9. How healthy is your physical environment (climate, noise, pollution, appeals)?0.840.87
 10. Do you have enough energy for everyday life?0.850.86
 11. Are you able to accept your physical appearance?0.840.87
 12. Do you have you enough money to meet your needs?0.840.87
 13. How available to you is information that you need in your day-to-day life?0.850.87
 14. Do you have the opportunity for leisure activities?0.830.88
 15. How well are you able to get around?0.850.88
 16. Are you satisfied with your sleep?0.860.85
 17. Are you satisfied with your ability to perform daily living activities?0.850.87
 18. Are you satisfied with your capacity for work?0.840.88
 19. Are you satisfied with yourself?0.850.87
 20. Are you satisfied with your personal relationships?0.850.87
 21. Are you satisfied with your sex life?0.840.86
 22. Are you satisfied with the support you get from your friends?0.840.88
 23. Are you satisfied with the conditions of your living place?0.850.87
 24. Are you satisfied with your access to health services?0.840.86
 25. Are you satisfied with your transportation?0.850.87
 26. Do you have negative feelings e.g. bad mood, anxiety, depression?0.850.88
Domain
 D1- Physical (Q3,4, 10, 15, 16, 17, 18)0.850.86
 D2- Psychological (Q5, 6, 7, 11, 19, 26)0.840.87
 D3- Social (Q20, 21, 22)0.840.87
 D4- Environmental (Q8, 9, 12, 13, 14, 23, 24, 25)0.840.87
 Perception of QOL (Q1)0.840.87
 Health satisfaction (Q2)0.840.87
 Total Score0.840.87