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Table 2 The results obtained from factor analysis for the Persian version of CBI in caregivers of elderly patients with Alzheimer disease

From: Psychometric characteristics of the Iranian Caregiver Burden Inventory (CBI) in caregivers of elderly patients with Alzheimer

Items F1 F2 F3
7. I wish I could escape from this situation 0.876 0.160 −0.053
8. My social life has suffered 0.863 0.101 −0.055
18. I don’t do as good a job at work as I used to 0.739 −0.163 0.357
9. I feel emotionally drained, due to caring for my care receiver 0.704 0.088 .076
19. I feel resentful of other relatives who could but do not help 0.683 0.051 0.241
6. I feel that I’m missing out on life 0.674 −0.150 0.120
22. I resent my care receiver 0.660 −0.017 0.059
17. I’ve had problems with my marriage 0.560 −0.053 0.095
10. I expected that things would be different at this point in my life 0.538 0.189 0.079
21.I feel ashamed on my care receiver 0.516 0.004 0.012
23. I feel uncomfortable when I have friends over 0.497 0.077 0.095
4. I have to help my care receiver with many basic functions 0.339 0.868 0.017
1. My care receiver needs my help to perform many daily tasks 0.218 0.835 0.002
5. I don’t have a minute’s break from my caregiving chores 0.258 0.810 −0.071
2. My care receiver is dependent on me 0.084 0.713 0.018
3. I have to watch my care receiver constantly 0.030 0.505 −0.004
13. Caregiving has made me physically ill 0.094 0.160 0.993
12. My health has suffered −0.087 −0.047 0.742
14. I’m physically tired −0.021 0.128 0.615
24. I feel angry about my reactions toward my care receiver 0.382 0.225 0.017
20.I feel embarrassed by my care receiver behavior 0.376 0.103 0.086
15. I don’t get along with other family members as well as I used to 0.371 0.077 0.095
11. I’m not getting enough sleep 0.360 0.199 0.002
16. My caregiving efforts aren’t appreciated by others in my family 0.354 0.271 0.123
Eigenvalue 9.79 2.46 1.23
% of variance 38.37 8.40 2.96
Cronbach’s alpha 0.90 0.78 0.92
  1. F1 emotional/psychological burden, F2 time-dependence burden, F3 physical burden