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Table 3 Factor analysis results for child self-report (left) and the parent proxy-report (right) for the Iranian version of the PedsQL ™ 4.0 Generic Core Scales

From: Validity and reliability of the Iranian version of the Pediatric Quality of Life Inventory™ 4.0 (PedsQL™) Generic Core Scales in children

  Factor 1 Factor 2 Factor 3 Factor 4 Factor 5 Factor 6
Physical functioning             
1. It is hard for me to walk more than one block 0.78 0.71 0.01 0.30         
2. It is hard for me to run 0.73 0.73 0.22 0.38         
3. It is hard for me to do sports activities or exercise 0.56 0.78 0.39 0.26         
4. It is hard for me to lift something heavy 0.53 0.39 0.05 0.52         
5. It is hard for me to take a bath or shower by myself -0.07 0.77 0.77 0.02         
6. It is hard for me to do chores around the house 0.14 0.71 0.57 0.14         
7. I hurt or ache 0.16 0.15 0.49 0.78         
8. I have low energy 0.46 0.12 0.51 0.81         
Emotional functioning             
1. I feel afraid or scared      0.68 0.70       
2. I feel sad or blue      0.61 0.76       
3. I feel angry      0.66 0.68       
4. I have trouble sleeping      0.61 0.59       
5. I worry about what will happen to me      0.64 0.61       
Social functioning             
1. I have trouble getting along with other kids        0.69 0.76     
2. Other kids do not want to be my friend        0.73 0.80     
3. Other kids tease me        0.59 0.66     
4. I cannot do things other kids my age can do        0.68 0.72     
5. It is hard to keep up with my peers        0.63 0.55     
School functioning             
1. It is hard to pay attention in class          0.80 0.84 0.00 0.00
2. I forget things          0.71 0.72 0.04 0.12
3. I have trouble keeping up with my schoolwork          0.62 0.75 0.28 0.14
4. I miss school because of not feeling well          0.01 0.10 0.87 0.84
5. I miss school to go to the doctor or hospital          0.18 0.09 0.81 0.84