Table 2 –
Participant Characteristics at Baseline
| Participants | ||
|---|---|---|
| n=345 | ||
| Mean (SD) or n (%) | ||
| Age | ||
| Years | 37.9 (12.9) | |
| Gender | ||
| Male | 49 (14.2) | |
| Female | 296 (85.8) | |
| Education * | ||
| No college | 52 (15.1) | |
| ≥1 year of college | 292 (84.9) | |
| Annual household income # | ||
| Less than $50,000 | 186 (54.6) | |
| $50,000 – $79,999 | 88 (25.8) | |
| $80,000 or more | 67 (19.7) | |
| Oral behaviors | ||
| OBC sum score | 24.2 (8.6) | |
| Perceived stress | ||
| PSS-10 sum score | 12.9 (6.3) | |
| Nonspecific physical symptoms (somatization) $ | ||
| Low | 202 (58.7) | |
| Moderate | 96 (27.9) | |
| Severe | 46 (13.4) | |
| Depression and vegetative symptoms † | ||
| Low | 233 (67.7) | |
| Moderate | 80 (23.3) | |
| Severe | 31 (9.0) | |
| Anxiety § | ||
| Low | 256 (74.4) | |
| Moderate | 64 (18.6) | |
| Severe | 24 (7.0) | |
| Graded chronic pain | ||
| Characteristic pain intensity | 39.6 (27.3) | |
| Right side | Left side | |
| TMJ intra-articular status ‡ | ||
| Normal | 59 (17.3) | 68 (20.0) |
| DDwR | 105 (30.8) | 99 (29.1) |
| DDw/oR | 25 (7.3) | 20 (5.9) |
| DJD Grade 1 | 62 (18.2) | 46 (13.5) |
| DJD Grade 2 | 90 (26.4) | 107 (31.5) |
| Occlusal status (SDA) π | ||
| Missing molar support | 30 (8.7) | 40 (11.7) |
OBC – Oral Behaviors Checklist; PSS – Perceived Stress Scale; STAI – State-Trait Anxiety Inventory
*
1 missing value for education
#
4 missing values for income
$
1 missing value for nonspecific physical symptoms
†
1 missing value for depression and vegetative symptoms
§
1 missing value for anxiety
‡
4 missing values for TMJ intra-articular status of the right TMJ and 5 missing values for the left TMJ
π
1 missing value for occlusal status of the right jaw and 2 missing values for the left jaw