Research Article
Validity and Reliability of Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2) in Iranian People with Parkinson’s Disease
Table 2
Factor analysis for SF-MPQ-2 in people with idiopathic Parkinson’s disease (n = 428).
| Items | Factor 1 | Factor 2 | Factor 3 | Factor 4 |
| Throbbing pain | 0.78 | 0.22 | 0.05 | 0.28 | Cramping pain | 0.81 | 0.14 | 0.20 | 0.02 | Gnawing pain | 0.71 | 0.31 | 0.34 | 0.16 | Aching pain | 0.54 | 0.19 | 0.35 | 0.15 | Heavy pain | 0.68 | 0.21 | 0.06 | 0.33 | Tender | 0.72 | 0.21 | 0.19 | 0.39 | Shooting pain | 0.17 | 0.78 | 0.21 | 0.09 | Stabbing pain | 0.32 | 0.72 | 0.17 | 0.08 | Sharp pain | 0.44 | 0.69 | 0.06 | 0.12 | Splitting pain | 0.12 | 0.79 | 0.09 | 0.39 | Electric-shock pain | 0.23 | 0.38 | 0.52 | 0.31 | Piercing | 0.56 | 0.22 | 0.65 | 0.18 | Cold-freezing pain | 0.02 | 0.49 | 0.51 | 0.18 | Hot-burning pain | 0.40 | 0.38 | 0.46 | 0.15 | Pain caused by light touch | 0.24 | 0.11 | 0.59 | 0.28 | Itching | 0.11 | 0.25 | 0.68 | 0.17 | Tingling or ‘pins and needles’ | 0.50 | 0.08 | 0.53 | 0.12 | Numbness | 0.33 | 0.06 | 0.74 | 0.07 | Tiring-exhausting | 0.14 | 0.45 | 0.14 | 0.53 | Fearful | 0.28 | 0.08 | 0.38 | 0.74 | Sickening | 0.28 | 0.25 | 0.15 | 0.79 | Punishing-cruel | 0.30 | 0.47 | 0.24 | 0.53 |
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