Table 3.
Linear model of conditioned-pain-modulation effect (% change in PPT at 15 s) for participants with conditioning tolerance 20 s (n=108). DSM-Anxiety, anxiety t-score Achenbach Youth Self-Report scale; HUI-3, Health Utilities Index Mark 3; PCS, pain catastrophising scale; PPT, pressure pain threshold; SE, standard error
| Variables | Step 1 (n=108) |
Step 2 (n=108) |
Step 3 (n=96) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B | SE B | β | P | B | SE B | β | P | B | SE B | β | P | |
| Baseline PPT | –27 | 7.1 | –0.35 | <0.001 | –30 | 7.9 | –0.39 | <0.001 | –35 | 8.6 | –0.43 | <0.001 |
| Immersion time | –1.9 | 1.5 | –0.12 | 0.19 | –1.7 | 1.5 | –0.10 | 0.27 | –0.16 | 1.6 | –0.01 | 0.92 |
| Extremely premature status | –1.8 | 9.0 | –0.02 | 0.84 | 2.6 | 9.7 | 0.02 | 0.79 | ||||
| Sex | –8.9 | 9.3 | –0.09 | 0.34 | –14 | 10 | –0.14 | 0.19 | ||||
| Pain (HUI-3 ranking) | –5.4 | 7.5 | 0.08 | 0.47 | ||||||||
| Regular analgesics | 21 | 24 | 0.09 | 0.38 | ||||||||
| Catastrophising (PCS) | –0.58 | 0.56 | –0.13 | 0.30 | ||||||||
| DSM-Anxiety (Ach) | –0.57 | 0.59 | –0.12 | 0.33 | ||||||||
| Regular psychotropics | 65 | 23 | 0.29 | 0.01 | ||||||||
| R2 | 0.15 | 0.16 | 0.29 | |||||||||
| F for R2 | F2,105=9.3; P=0.001 | F4,103=4.8; P=0.001 | F9,87=3.9; P=0.001 | |||||||||