Table 3.
Independent Contribution of Each COPC to Standardized Mean QST Measures, Adjusted for Study Site and Demographics
| QST measure | TMD | Headache | IBS | LBP | Fibromyalgia |
|---|---|---|---|---|---|
| PPT: Temporalis (r) | 0.68 (0.11), < .01 | −0.02 (0.09), .84 | 0.24 (0.12), .05 | 0.01 (0.14), .97 | 0.08 (0.15), .61 |
| PPT: Trapezius (r) | 0.30 (0.13), .02 | −0.08 (0.10), .40 | 0.19 (0.12), .10 | −0.08 (0.13), .55 | 0.56 (0.15), < .01 |
| PPT: Anterior tibialis (r) | 0.38 (0.14), < .01 | −0.07 (0.10), .50 | 0.13 (0.11), .26 | −0.14 (0.12), .25 | 0.46 (0.19), .02 |
| MCPT (r) | 0.31 (0.13), .02 | 0.23 (0.11), .03 | 0.10 (0.12), .40 | −0.01 (0.16), .97 | 0.35 (0.18), .05 |
| MCP: Single stimulus (0 to 100) | 0.39 (0.15), < .01 | 0.05 (0.12), .66 | 0.01 (0.11), .94 | −0.02 (0.16), .91 | 0.05 (0.26), .85 |
| MCP: Series of 10 stimuli (0 to 100) | 0.26 (0.14), .06 | 0.01 (0.11), .90 | 0.11 (0.10), .28 | −0.04 (0.14), .77 | 0.04 (0.25), .87 |
| MCP: TS (−100 to 100) | −0.02 (0.16), .91 | −0.04 (0.11), .73 | 0.17 (0.11), .13 | −0.04 (0.15), .76 | 0.01 (0.26), .97 |
| MCP: 15-s aftersensation (0 to 100) | 0.10 (0.10), .33 | 0.12 (0.10), .22 | −0.03 (0.09), .76 | 0.21 (0.15), .15 | 0.53 (0.28), .06 |
| HPT, °C (r) | 0.08 (0.17), .62 | 0.12 (0.11), .26 | 0.23 (0.16), .14 | −0.11 (0.13), .43 | 0.32 (0.28), .26 |
| HP: Tolerance, °C (r) | 0.20 (0.15), .20 | −0.07 (0.12), .56 | −0.08 (0.14), .55 | 0.17 (0.11), .13 | −0.24 (0.16), .13 |
| HP: Single stimulus (0 to 100) | 0.42 (0.18), .02 | −0.15 (0.13), .25 | 0.01 (0.17), .97 | 0.08 (0.19), .69 | −0.24 (0.19), .19 |
| HP: 10 stimuli AUC (0 to 100) | 0.41 (0.16), .01 | −0.05 (0.13), .69 | 0.03 (0.15), .85 | 0.10 (0.15), .50 | −0.14 (0.18), .42 |
| HP: Maximum of 10 stimuli (0 to 100) | 0.39 (0.15), < .01 | −0.04 (0.13), .72 | 0.11 (0.14), .43 | 0.17 (0.13), .21 | −0.13 (0.15), .41 |
| HP: TS (0 to 100) | 0.10 (0.18), .60 | 0.00 (0.16), .99 | 0.06 (0.16), .72 | 0.05 (0.18), .77 | 0.21 (0.26), .43 |
| HP: 15-s aftersensation (0 to 100) | 0.06 (0.17), .73 | 0.05 (0.15), .74 | 0.06 (0.15), .68 | 0.15 (0.24), .54 | 0.69 (0.30), .02 |
Data are reported as estimated mean difference (standard error), P value. Values in bold are significant (P < .05). PPT = pressure pain threshold; (r) = reverse scoring; MCP(T) = mechanical cutaneous pain (threshold); HP(T) = heat pain (threshold); TS = temporal summation; AUC = area under the curve.