Table 3.
Means and SDs of various pain and psychological variables in patients with different levels of self-reported neuropathic sensory symptoms across the four diagnostic groups (clustering 1)
| “Cluster 1” Low level of neuropathic sensory symptoms (M=1.38)a | “Cluster 2” Moderate level of neuropathic sensory symptoms (M=2.51)a | “Cluster 3” High level of neuropathic sensory symptoms (M=3.36)a | F(df) | Post hoc “LSD” | ||
|---|---|---|---|---|---|---|
| TNP | NRS (M ± SD) | 5.87±2.85 | 6.41±1.75 | 6.96±1.92 | 1.15 (2, 70)† | – |
| MPSS (M ± SD) | 8.25±1.48 | 8.73±1.05 | 8.77±1.18 | 0.68 (2, 70)† | – | |
| PCS-H (M ± SD) | 11.50±2.00 | 12.86±5.70 | 10.46±5.70 | 0.88 (2, 40)† | – | |
| CPAQ (M ± SD) | 33.80±10.29 | 33.95±10.21 | 32.64±11.18 | 0.07 (2, 37)† | – | |
| ADS-K (M ± SD) | 15.00±1.41 | 16.72±9.72 | 15.21±10.41 | 0.16 (2, 40)† | – | |
| RAD | NRS (M ± SD) | 6.62±1.59 | 6.68±1.77 | 7.20±1.47 | 0.69 (2, 63)† | – |
| MPSS (M ± SD) | 8.42±0.97 | 8.89±1.44 | 9.26±1.32 | 1.03 (2, 61)† | – | |
| PCS-H (M ± SD) | 9.33±3.82 | 10.80±5.71 | 12.23±6.21 | 0.66 (2, 55)† | – | |
| CPAQ (M ± SD) | 37.66±12.45 | 33.17±9.30 | 27.58±10.11 | 2.93 (2, 55)† | – | |
| ADS-K (M ± SD) | 14.20±4.65 | 12.82±9.33 | 18.94±10.59 | 2.39 (2, 54)† | – | |
| FM | NRS (M ± SD) | 6.28±1.60 | 6.53±1.66 | 7.50±1.44 | 3.03 (2, 55)† | – |
| MPSS (M ± SD) | 9.28±0.75 | 8.92±1.23 | 9.70±1.08 | 3.04 (2, 55)† | – | |
| PCS-H (M ± SD) | 10.80±2.16 | 13.40±5.47 | 16.37±4.71 | 2.11 (2, 25)† | – | |
| CPAQ (M ± SD) | 31.40±11.80 | 27.60±10.97 | 26.14±11.52 | 0.33 (2, 24)† | – | |
| ADS-K (M ± SD) | 17.60±10.26 | 20.53±9.54 | 26.12±10.93 | 1.28 (2, 25)† | – | |
| nBP | NRS (M ± SD) | 6.06±1.82 | 6.89±2.12 | 8.00±2.23 | 3.76 (2, 95)* | 1 < 3 |
| MPSS (M ± SD) | 8.33±1.16 | 8.42±1.05 | 9.14±1.06 | 1.60 (2, 86)† | – | |
| PCS-H (M ± SD) | 11.04±5.99 | 12.93±4.28 | 16.00±4.20 | 3.50 (2, 95)* | 1 < 3 | |
| CPAQ (M ± SD) | 32.75±11.47 | 27.91±6.85 | 23.14±7.58 | 5.00 (2, 95)** | (2, 3) < 1 | |
| ADS-K (M ± SD) | 15.29±8.53 | 17.61±7.79 | 25.85±10.63 | 4.97 (2, 95)** | (1, 2) < 3 | |
| Total | NRS (M ± SD) | 6.19±1.93 | 6.65±1.86 | 7.25±1.68 | 6.09 (2, 293)** | (1, 2) < 3 |
| MPSS (M ± SD) | 8.44±1.15 | 8.72±1.21 | 9.22±1.22 | 7.76 (2, 281)*** | (1, 2) < 3 | |
| PCS-H (M ± SD) | 10.96±5.18 | 12.35±5.19 | 13.02±5.93 | 2.22 (2, 224)† | – | |
| CPAQ (M ± SD) | 33.26±10.91 | 30.50±9.15 | 28.06±10.60 | 3.57 (2, 220)* | 3 < 1 | |
| ADS-K (M ± SD) | 15.38±7.77 | 16.41±9.11 | 20.17±11.27 | 3.82 (2, 223)* | (1, 2) < 3 |
Notes:
a
Mean score of the self-reported neuropathic sensory symptoms (sum of the 7 sensory symptoms/7);
***
P<0.001;
**
P<0.01;
*
P<0.05;
†
Not significant.
Abbreviations: ADS-K, Allgemeine Depressions Skala–Kurz version; CPAQ, Chronic Pain Acceptance Questionnaire; df, degrees of freedom; FM, fibromyalgia; LSD, Fisher’s least significant difference; M, mean; MPSS, Mainz Pain Staging System; nBP, nociceptive back pain; NRS, Numeric Rating Scale; PCS-H, Pain Catastrophizing Scale–Helplessness; RAD, radiculopathy; SD, standard deviation; TNP, typical neuropathic pain.