Table 5.
Absolute frequency and percentage [n (%) values] of DC/TMD diseases in Group with Headache (GwH) and Group without Headache (GwoH); difference in prevalence [n (%) values]; and X squared value of correlation between presence of headache and dysfunctional diseases. DD with R: Disk Displacement with Reduction, MOL: Mouth Open limitation, and DD without R: Disk Displacement without Reduction.
| DC/TMD disease | GwH | GwoH | Difference in prevalence in favour of GwH or GwoH |
X 2 value of correlation between headache and dysfunction | |||
|---|---|---|---|---|---|---|---|
| N (%) | Cl95% | N (%) | Cl95% | N (%) | Cl95% | ||
| Muscle pain | 395 (63%) | 59.2%–66.8% | 138 (45%) | 39.4%–50.5% | 257 (18%) | 15.7%–20.5% | 22.1273 χ1,0.952 = 3.84 |
| Myofascial pain | 119 (20%) | 6.9%–23.1% | 42 (14%) | 10.2–17.9% | 77 (6%) | 4.5%–7.5% | 3.896 χ1,0.952 = 3.84 |
| Myofascial pain with referral | 59 (9%) | 6.1%–11.9% | 20 (7%) | 4.1%–9.9% | 39 (2%) | 1.1%–2.9% | — |
| TMJ pain | 747 (85%) | 82.2%–87.8% | 251 (71%) | 65.9%–76.1% | 496 (14%) | 11.8%–16.2% | 24.3216 χ1,0.952 = 3.84 |
| DD with R | 364 (58%) | 54.1%–61.9% | 144 (47%) | 41.4%–52.6% | 220 (11%) | 9%–13% | 14.7635 χ1,0.952 = 3.84 |
| Subluxation | 91 (15%) | 12.2%–17.8% | 35 (12%) | 8.4%–15.6% | 56 (3%) | 2%–4% | — |
| DD with R and intermittent MOL+ | 11 (2%) | 1.1%–2.9% | 13 (4%) | 2.1%–5.9% | 2 (2%) | 1.1%–2.9% | 5.1456 χ1,0.952 = 3.84 |
| DD without R with MOL | 45 (8%) | 5.9%–10.1% | 29 (10%) | 6.6%–13.4% | 16 (2%) | 1.1%–2.9% | — |
| DD without R without MOL | 19 (3%) | 1.7%–3.3% | 9 (3%) | 1.1%–4.5% | 0 (0%) | — | — |
| Degenerative joint disease | 48 (8%) | 5.9%–10.1% | 27 (9%) | 5.8%–12.2% | 21 (1%) | 0.4%–1.6% | — |