Appendix 4.
Estimates of Linear Association and Pairwise Comparisons Between Extent of Non-TMD COPC and z Scores of Measures Germane to TMD Adjusted for Study Site and Demographic Characteristics
| Linear association |
Est (SE), P |
||||
|---|---|---|---|---|---|
| Measure | β (SE), P | 1 vs 0 COPCs |
2 vs 0 COPCs |
3 vs 0 COPCs |
4 vs 0 COPCs |
| Pain-free jaw opening (r) | 0.26 (0.05), < .01 | 0.24 (0.10), .01 | 0.42 (0.13), < .01 | 0.43 (0.19), .02 | 1.88 (0.43), < .01 |
| Maximum unassisted jaw opening (r) | 0.13 (0.06), .05 | 0.18 (0.11), .11 | 0.09 (0.14), .52 | −0.02 (0.17), .88 | 1.47 (0.45), < .01 |
| Maximum assisted jaw opening (r) | 0.09 (0.07), .15 | 0.16 (0.12), .16 | 0.00 (0.13), .97 | −0.06 (0.18), .73 | 1.27 (0.49), < .01 |
| MM pain: Motion | 0.17 (0.05), < .01 | 0.13 (0.11), .23 | 0.27 (0.14), .04 | 0.30 (0.25), .23 | 1.25 (0.33), < .01 |
| MM pain: Palpation | 0.36 (0.05), < .01 | 0.38 (0.11), < .01 | 0.58 (0.14), < .01 | 0.91 (0.26), < .01 | 2.04 (0.08), < .01 |
| MM pain: Motion + palpation | 0.33 (0.05), < .01 | 0.34 (0.12), < .01 | 0.57 (0.14), < .01 | 0.77 (0.27), < .01 | 1.89 (0.08), < .01 |
| MM familiar pain: Motion | 0.23 (0.05), < .01 | 0.15 (0.09), .07 | 0.36 (0.14), .01 | 0.58 (0.27), .03 | 1.52 (0.36), < .01 |
| MM familiar pain: Palpation | 0.31 (0.05), < .01 | 0.24 (0.09), < .01 | 0.54 (0.13), < .01 | 0.64 (0.26), .01 | 2.14 (0.18), < .01 |
| MM familiar pain: Motion + palpation | 0.31 (0.05), < .01 | 0.22 (0.09), .01 | 0.60 (0.14), < .01 | 0.61 (0.26), .01 | 2.02 (0.21), < .01 |
| Neck pain: Palpation | 0.22 (0.05), < .01 | 0.34 (0.11), < .01 | 0.41 (0.14), < .01 | 0.34 (0.21, .09 | 1.24 (0.11), < .01 |
| Body pain: Palpation | 0.23 (0.06), < .01 | 0.23 (0.09), .01 | 0.49 (0.12), < .01 | 0.20 (0.32), .52 | 1.64 (0.18), < .01 |
| Neck familiar pain: Palpation | 0.26 (0.05), < .01 | 0.17 (0.09), .07 | 0.45 (0.13), < .01 | 0.60 (0.27), .02 | 1.77 (0.27), < .01 |
| Body familiar pain: Palpation | 0.27 (0.06), < .01 | 0.15 (0.09), .10 | 0.39 (0.13), < .01 | 0.52 (0.29), .07 | 2.26 (0.25), < .01 |
| Nonspecific jaw symptoms | 0.34 (0.05) , < .01 | 0.29 (0.08), < .01 | 0.66 (0.12), < .01 | 0.86 (0.23), < .01 | 1.73 (0.55), < .01 |
| TMJ function by history | 0.26 (0.04), < .01 | 0.12 (0.10), .22 | 0.58 (0.10), < .01 | 0.67 (0.17), < .01 | 1.28 (0.39), .01 |
| JFLS: Chewing | 0.24 (0.05), < .01 | 0.08 (0.09), .35 | 0.34 (0.12), < .01 | 0.78 (0.28), < .01 | 1.58 (0.47), < .01 |
| JFLS: Opening | 0.21 (0.06), < .01 | 0.02 (0.08), .80 | 0.39 (0.14), < .01 | 0.35 (0.20), .07 | 1.63 (0.58), < .01 |
| JFLS: Expressiveness | 0.11 (0.05), .03 | −0.03 (0.07), .63 | 0.07 (0.09), .39 | 0.18 (0.14), .20 | 1.28 (0.46), < .01 |
| JFLS: Global | 0.22 (0.05), < .01 | 0.03 (0.08), .68 | 0.33 (0.11), < .01 | 0.52 (0.19), < .01 | 1.72 (0.53), < .01 |
| TSK-TMD: Activity avoidance | 0.21 (0.05), < .01 | 0.19 (0.12), .09 | 0.38 (0.12), < .01 | 0.40 (0.23), .07 | 1.30 (0.47), < .01 |
| TSK-TMD: Somatic focus | 0.21 (0.06), < .01 | 0.17 (0.09), .06 | 0.39 (0.12), < .01 | 0.32 (0.21), .12 | 1.48 (0.70), .03 |
| OBC: Total | 0.30 (0.05), < .01 | 0.30 (0.11), < .01 | 0.60 (0.14), < .01 | 0.78 (0.23), < .01 | 1.40 (0.30), < .01 |
Est = estimated mean difference; SE = standard error; (r) = reverse scoring; MM = masticatory muscle; TSK-TMD = Tampa Scale for Kinesiophobia; OBC = Oral Behaviors Checklist.