Table 2.
Association between Unordered Levels TMJ Intra-articular Status (DDwR, DDwoR, or DJD vs. Base Category Normal) and Jaw Pain (CPI), Function (JFLS), and Disability, Analyzed Using Adjusted Multivariate Multiple Regression, in TMD Cases with Any TMD Diagnosis or Cases with Only a Painful TMD Diagnosis.
| Analysis | Dependent Variable | Independent Variable | Any TMD Diagnosisa |
Painful TMD Diagnosisa |
||
|---|---|---|---|---|---|---|
| Intercept | Coefficient (95% CI) | Intercept | Coefficient (95% CI) | |||
| Adjusted (multiple regression) | CPI | DDwRb | 52 | −17 (−24 to −10) | 48 | −2 (−8 to 3) |
| DDwoRb | −5 (−13 to 4) | 5 (−2 to 12) | ||||
| DJDb | −8 (−15 to −2) | 0 (–5 to 6) | ||||
| Age | −0.2 (−0.3 to 0.0) | 0.0 (−0.1 to 0.2) | ||||
| Sex | 7 (1 to 13) | 2 (−4 to 8) | ||||
| JFLS | DDwRb | 28 | −12 (−19 to −6) | 26 | −5 (−12 to 3) | |
| DDwoRb | 3 (−5 to 11) | 10 (1 to 19) | ||||
| DJDb | 2 (−5 to 9) | 7 (0 to 14) | ||||
| Age | 0.0 (−0.2 to 0.1) | 0.1 (−0.1 to 0.3) | ||||
| Sex | 5 (−1 to 11) | 3 (−4 to 9) | ||||
| Disability | DDwRb | 17 | −10 (−15 to −4) | 15 | −4 (−10 to 3) | |
| DDwoRb | −7 (−14 to 0) | −3 (−11 to 4) | ||||
| DJDb | −8 (−14 to −3) | −5 (−11 to 1) | ||||
| Age | 0.1 (0.0 to 0.2) | 0.2 (0.0 to 0.4) | ||||
| Sex | 3 (−2 to 8) | 1 (−5 to 7) | ||||
CI, confidence interval; CPI, Characteristic Pain Intensity; DJD, degenerative joint disease; DDwR, disc displacement with reduction; DDwoR, disc displacement without reduction; JFLS, Jaw Functional Limitation Scale; TMD, temporomandibular disorder; TMJ, temporomandibular joint.
a
Two subjects were excluded from analyses because of missing JFLS data.
b
Compared with normal (joints).