Table 4.
Interitem Correlation for SF-MPQ-2 in people with idiopathic Parkinson's disease (n = 428).
| Items | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Throbbing pain | 1 | |||||||||||||||||||||
| 2. Shooting pain | 0.66 | 1 | ||||||||||||||||||||
| 3. Stabbing pain | 0.61 | 0.61 | 1 | |||||||||||||||||||
| 4. Sharp pain | 0.53 | 0.48 | 0.54 | 1 | ||||||||||||||||||
| 5. Cramping pain | 0.25 | 0.38 | 0.30 | 0.24 | 1 | |||||||||||||||||
| 6. Gnawing pain | 0.48 | 0.40 | 0.50 | 0.48 | 0.22 | 1 | ||||||||||||||||
| 7. Hot-burning pain | 0.48 | 0.48 | 0.57 | 0.47 | 0.39 | 0.39 | 1 | |||||||||||||||
| 8. Aching pain | 0.44 | 0.50 | 0.48 | 0.46 | 0.38 | 0.41 | 0.45 | 1 | ||||||||||||||
| 9. Heavy pain | 0.27 | 0.38 | 0.37 | 0.30 | 0.50 | 0.41 | 0.42 | 0.44 | 1 | |||||||||||||
| 10. Tender | 0.37 | 0.44 | 0.42 | 0.60 | 0.30 | 0.67 | 0.52 | 0.41 | 0.41 | 1 | ||||||||||||
| 11. Splitting pain | 0.40 | 0.30 | 0.37 | 0.60 | 0.29 | 0.49 | 0.45 | 0.30 | 0.23 | 0.67 | 1 | |||||||||||
| 12. Tiring-exhausting | 0.49 | 0.62 | 0.46 | 0.35 | 0.43 | 0.35 | 0.42 | 0.42 | 0.50 | 0.38 | 0.24 | 1 | ||||||||||
| 13. Sickening | 0.50 | 0.34 | 0.40 | 0.36 | 0.23 | 0.71 | 0.31 | 0.33 | 0.33 | 0.50 | 0.49 | 0.43 | 1 | |||||||||
| 14. Fearful | 0.57 | 0.40 | 0.40 | 0.63 | 0.27 | 0.51 | 0.50 | 0.28 | 0.25 | 0.69 | 0.74 | 0.39 | 0.58 | 1 | ||||||||
| 15. Punishing-cruel | 0.32 | 0.39 | 0.44 | 0.44 | 0.54 | 0.29 | 0.42 | 0.40 | 0.27 | 0.44 | 0.35 | 0.50 | 0.21 | 0.39 | 1 | |||||||
| 16. Electric-shock pain | 0.52 | 0.44 | 0.55 | 0.43 | 0.37 | 0.48 | 0.47 | 0.57 | 0.46 | 0.50 | 0.37 | 0.37 | 0.48 | 0.44 | 0.39 | 1 | ||||||
| 17. Cold-freezing pain | 0.24 | 0.21 | 0.22 | 0.37 | 0.43 | 0.27 | 0.37 | 0.26 | 0.33 | 0.38 | 0.48 | 0.30 | 0.31 | 0.47 | 0.33 | 0.32 | 1 | |||||
| 18. Piercing | 0.50 | 0.53 | 0.68 | 0.64 | 0.33 | 0.33 | 0.61 | 0.47 | 0.30 | 0.58 | 0.48 | 0.45 | 0.27 | 0.57 | 0.62 | 0.49 | 0.38 | 1 | ||||
| 19. Pain caused by light touch | 0.52 | 0.53 | 0.51 | 0.44 | 0.27 | 0.41 | 0.31 | 0.46 | 0.31 | 0.33 | 0.45 | 0.36 | 0.40 | 0.46 | 0.30 | 0.49 | 0.30 | 0.45 | 1 | |||
| 20. Itching | 0.63 | 0.55 | 0.44 | 0.34 | 0.33 | 0.32 | 0.47 | 0.40 | 0.28 | 0.31 | 0.26 | 0.51 | 0.37 | 0.42 | 0.28 | 0.53 | 0.37 | 0.48 | 0.47 | 1 | ||
| 21. Tingling or ‘pins and needles' | 0.52 | 0.51 | 0.43 | 0.40 | 0.46 | 0.35 | 0.51 | 0.45 | 0.40 | 0.30 | 0.27 | 0.42 | 0.31 | 0.33 | 0.35 | 0.46 | 0.34 | 0.39 | 0.39 | 0.53 | 1 | |
| 22. Numbness | 0.36 | 0.36 | 0.43 | 0.25 | 0.56 | 0.31 | 0.47 | 0.35 | 0.50 | 0.24 | 0.22 | 0.41 | 0.30 | 0.26 | 0.43 | 0.52 | 0.34 | 0.43 | 0.32 | 0.37 | 0.63 | 1 |