Table 4.
Item-level discrimination by neuropathic pain condition
| Item | Corrected item-to-total correlation
|
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pDPN
|
CLBP
|
SCI
|
HIVP
|
PTPS
|
SFN
|
|||||||
| Nine-item | Seven-item | Nine-item | Seven-item | Nine-item | Seven-item | Nine-item | Seven-item | Nine-item | Seven-item | Nine-item | Seven-item | |
| Burning sensation | 0.54 | 0.56 | 0.36 | 0.39 | 0.30 | 0.33 | 0.61 | 0.65 | 0.58 | 0.59 | 0.53 | 0.56 |
| Tingle or prickling sensation | 0.63 | 0.64 | 0.63 | 0.64 | 0.48 | 0.50 | 0.71 | 0.73 | 0.57 | 0.60 | 0.57 | 0.62 |
| Light touching painful | 0.58 | 0.61 | 0.59 | 0.62 | 0.51 | 0.54 | 0.62 | 0.61 | 0.62 | 0.63 | 0.63 | 0.66 |
| Sudden pain attacks in area of pain | 0.49 | 0.47 | 0.49 | 0.49 | 0.26 | 0.30 | 0.58 | 0.57 | 0.56 | 0.58 | 0.57 | 0.59 |
| Cold or heat painful | 0.54 | 0.55 | 0.51 | 0.50 | 0.47 | 0.47 | 0.66 | 0.67 | 0.58 | 0.55 | 0.45 | 0.45 |
| Sensation of numbness | 0.53 | 0.56 | 0.47 | 0.49 | 0.31 | 0.30 | 0.49 | 0.53 | 0.50 | 0.53 | 0.36 | 0.41 |
| Slight pressure trigger pain | 0.61 | 0.61 | 0.46 | 0.46 | 0.29 | 0.31 | 0.56 | 0.59 | 0.54 | 0.55 | 0.48 | 0.49 |
| Radiating pain | 0.22 | – | 0.39 | – | 0.34 | – | 0.40 | – | 0.09 | – | 0.08 | – |
| Pain attacks or persistent pain | –0.05 | – | 0.05 | – | –0.23 | – | –0.08 | – | –0.10 | – | –0.12 | – |
Abbreviations: CLBP, chronic low back pain-associated NeP; HIVP, human immunodeficiency virus-related peripheral NeP; pDPN, painful diabetic peripheral neuropathy; PTPS, posttrauma/postsurgical NeP; SCI, spinal cord injury-related NeP; SFN, small fiber neuropathy; NeP, neuropathic pain.