Table 1.
Demographic and clinical characteristics for female twins by temporomandibular pain status
| Characteristic | Temporomandibular Pain | |||
|---|---|---|---|---|
| All Twins | No | Yes | P-value | |
| N = 1,738 | N = 1,486 | N = 252 | ||
| Demographic | ||||
| Age, mean years ± s.d. | 33 ± 14 | 34 ± 15 | 32 ± 13 | 0.04 |
| Married, % | 34 | 34 | 30 | 0.15 |
| White, % | 85 | 85 | 81 | 0.07 |
| Education, mean years ± s.d. | 14 ± 2 | 14 ± 2 | 13 ± 2 | 0.01 |
| Monozygotic, % | 73 | 72 | 74 | 0.51 |
| Clinical | ||||
| Depression, % | 25 | 23 | 39 | < 0.01 |
| Chronic widespread pain, % | 8 | 6 | 17 | < 0.01 |
| Impact of Events, mean score ± s.d. | 19 ± 14 | 18 ± 14 | 26 ± 14 | < 0.01 |