Table 1.
Descriptive Univariate Analyses of OPPERA Study Participants
| Classification | Group | Unweighted n | Weighted n | Mean age (SE), y |
P | % female (SE) |
P | % white (SE) | P |
|---|---|---|---|---|---|---|---|---|---|
| TMD | Case | 182 | 108 | 33.0 (0.6) | .027 | 61.2 (3.6) | 0.574 | 50.7 (3.7) | .844 |
| Control | 473 | 547 | 35.4 (0.4) | 57.0 (2.3) | 52.2 (2.3) | ||||
| Headache | Case | 270 | 201 | 34.6 (0.5) | .412 | 71.1 (2.8) | 0.001 | 55.5 (3.0) | .392 |
| Control | 385 | 454 | 35.3 (0.4) | 51.7 (2.6) | 50.4 (2.6) | ||||
| IBS | Case | 158 | 134 | 34.6 (0.7) | .629 | 53.7 (4.0) | 0.470 | 60.1 (3.9) | .140 |
| Control | 497 | 521 | 35.2 (0.3) | 58.7 (2.2) | 49.8 (2.2) | ||||
| LBP | Case | 139 | 99 | 37.6 (0.7) | .009 | 56.7 (4.2) | 0.872 | 62.9 (4.1) | .078 |
| Control | 516 | 556 | 34.6 (0.3) | 57.9 (2.2) | 50.0 (2.2) | ||||
| Fibromyalgia | Case | 52 | 24 | 34.3 (1.1) | .673 | 77.2 (5.9) | 0.062 | 52.7 (7.0) | .943 |
| Control | 603 | 631 | 35.1 (0.3) | 56.9 (2.0) | 51.9 (2.0) | ||||
| No. of COPCs | 0 | 252 | 307 | 35.6 (0.5) | .149 | 54.0 (3.1) | 0.147 | 46.5 (3.1) | .277 |
| 1 | 178 | 209 | 34.4 (0.5) | 60.0 (3.7) | 55.5 (3.7) | ||||
| 2 | 109 | 83 | 33.6 (0.8) | 57.5 (4.8) | 58.7 (4.7) | ||||
| 3 | 71 | 33 | 36.5 (1.1) | 63.6 (5.8) | 68.4 (5.6) | ||||
| 4 | 33 | 15 | 38.7 (1.4) | 92.2 (4.7) | 39.7 (8.6) | ||||
| 5 | 12 | 6 | 30.9 (1.7) | 48.8 (15.1) | 52.8 (15.1) |
SE = standard error.