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Table 4 Factor loadings (rotated)1 of four factor solution of the PedsQL™ 4.0 Generic Core Scales

From: Health related quality of life of Iranian children with type 1 diabetes: reliability and validity of the Persian version of the PedsQL™ Generic Core Scales and Diabetes Module

Scale Child self-report Parent proxy-report
  F1 F2 F3 F4 F1 F2 F3 F4
Physical health         
1. Hard to walk more than a block 0.73 0.14 0.12 0.02 0.79 -0.03 -0.02 0.04
2. Hard to run 0.70 -0.006 0.25 0.01 0.86 0.01 0.00 -0.06
3. Hard to do sports or exercises 0.71 -0.11 0.42 -0.004 0.73 -0.07 0.25 -0.004
4. Hard to lift something heavy 0.63 0.06 0.03 0.25 0.51 0.26 0.21 0.03
5. Hard to take a bath or shower 0.25 0.17 0.57 0.08 0.40 0.00 0.67 -0.11
6. Hard to do chores around house 0.44 0.23 0.03 0.24 0.55 0.39 0.10 0.13
7. Hurt or ache 0.24 0.45 0.24 0.26 0.13 0.62 0.40 0.02
8. Low energy 0.41 0.39 0.19 -0.12 0.20 0.51 0.10 0.06
Emotional functioning         
1. Feel afraid or scared 0.06 0.68 0.28 -0.004 0.04 0.76 0.10 -0.03
2. Feel sad or blue 0.15 0.71 0.06 -0.034 0.16 0.74 -0.29 0.08
3. Feel angry 0.17 0.58 0.12 0.13 0.01 0.44 -0.36 0.28
4. Trouble sleeping 0.16 0.25 0.32 0.42 0.04 0.54 0.05 0.16
5. Worry about what will happen 0.01 0.78 -0.07 0.14 0.10 0.74 0.27 -0.08
Social functioning         
1. Trouble getting along with peers 0.13 0.26 0.71 0.25 0.12 0.07 0.70 0.29
2. Other kids not wanting to be friends 0.05 0.48 0.48 0.37 0.20 0.25 0.73 0.24
3. Teased 0.18 0.16 0.70 0.12 0.10 0.20 0.69 0.28
4. Doing things other peers do 0.58 0.30 -0.03 0.22 0.32 0.15 0.04 0.28
5. Hard to keep up when play with others 0.55 0.28 0.00 0.14 0.46 0.24 -0.06 0.39
School functioning         
1. Hard to concentrate -0.01 -0.02 0.26 0.78 0.17 0.05 0.42 0.70
2. Forget things 0.08 0.13 0.10 0.74 0.02 0.24 0.15 0.69
3. Trouble keeping up with schoolwork 0.14 -0.11 0.30 0.69 0.07 -0.06 0.37 0.63
4. Miss school - not well 0.23 0.13 -0.20 0.58 0.35 -0.06 0.23 0.28
5. Miss school - doctor appointment 0.22 0.19 -0.47 0.48 0.14 -0.07 -0.05 0.73
  1. 1: Varimax rotation.
  2. F1: Physical functioning, F2: Emotional functioning, F3: Social functioning, F4: School functioning.
  3. Items belonging to the postulated scales are shown by bold numbers.
  4. Factor loadings under 0.4 have been underlined.