| 14 – Item fatigue scale | IA N=236 | Normal Students N=953 | p Value |
| Physical symptoms | |||
| 1. Do you have problem with tiredness? | 3.01±1.60 | 2.17±1.65 | 0.001 |
| 2. Do you need to rest more? | 2.85±1.22 | 2.35±1.11 | 0.001 |
| 3. Do you feel sleepy or drowsy? | 2.92±1.05 | 2.22±1.13 | 0.001 |
| 4 Do you have problems starting things? | 2.82±1.05 | 2.44±1.24 | 0.001 |
| 5. Do you start things without difficulty but get weak as you go on? | 2.70±1.10 | 2.48±1.18 | 0.001 |
| 6. Are you lacking in energy? | 3.16±1.00 | 2.54±1.22 | 0.001 |
| 7. Do you have less strength in your muscle? | 2.87±1.08 | 2.36±1.21 | 0.001 |
| 8. Do you feel weak? | 2.96±1.07 | 2.65±1.24 | 0.001 |
| Mental symptoms | |||
| 9. Do you have difficulty concentrating? | 2.68±1.14 | 2.38±1.00 | 0.001 |
| 10. Do you have problems thinking clearly | 2.92±1.05 | 2.50±1.16 | 0.001 |
| 11. Do you make lips of the tongue when speaking? | 2.70±1.19 | 2.32±1.15 | 0.001 |
| 12. Do you fin it more difficult to find the correct word? | 2.60±1.26 | 2.62±1.23 | 0.785 |
| 13. How is your memory? | 2.73±1.16 | 2.36±1.15 | 0.001 |
| 14. Have you lot interest in the things you used to do | 2.73±1.16 | 2.44±1.49 | 0.001 |