Table 1.
Characteristics of Participants by TMD Incidence (n=1,729).
| TMD Incidence | |||
|---|---|---|---|
| Characteristic | Yes (n=175) | No (n=1,554) | p-value* |
| n (%) | |||
| Study site | |||
| Chapel Hill, NC | 20 (11.4) | 413 (26.6) | <0.01 |
| Buffalo, NY | 45 (25.7) | 384 (24.7) | |
| Gainesville, FL | 67 (38.3) | 424 (27.3) | |
| Baltimore, MD | 43 (24.6) | 333 (21.4) | |
| Gender | |||
| Males | 61 (34.9) | 621 (39.9) | 0.20 |
| Females | 114 (65.1) | 933 (60.0) | |
| Race | |||
| White | 92 (52.6) | 841 (54.1) | <0.01 |
| Black/African American | 61 (34.8) | 398 (25.6) | |
| Other | 22(12.6) | 315 (20.3) | |
| Life time residency in U.S | |||
| Yes | 161 (92.5) | 1,257 (82.5) | <0.01 |
| No | 13 (7.5) | 266 (17.5) | |
| Missing | 1 | 31 | |
| Education | |||
| Some college or less | 112 (65.5) | 822 (53.9) | <0.01 |
| College graduate or more | 59 (34.5) | 704 (46.1) | |
| Missing | 4 | 28 | |
| Family annual household Income | |||
| <40,000 USD | 71 (50.4) | 499 (41.6) | 0.07 |
| ≥40,000 USD | 70 (49.7) | 700 (58.4) | |
| Not Stated | 34 | 355 | |
| Covered by health insurance | |||
| Yes | 143 (84.6) | 1,256 (83.8) | 0.80 |
| No | 26 (15.4) | 243 (16.2) | |
| Missing | 6 | 55 | |
| Rating of satisfaction financial situation | |||
| Low (0–3) | 65 (37.8) | 431 (28.2) | 0.03 |
| Mid (4–6) | 62 (36.1) | 606 (39.7) | |
| High (7–10) | 45 (26.2) | 490 (32.1) | |
| Missing | 3 | 27 | |
| Rating of satisfaction material situation | |||
| Low (0–5) | 60 (35.1) | 392 (25.7) | <0.01 |
| Mid (6–8) | 84 (49.1) | 701 (46.0) | |
| High (9–10) | 27 (15.8) | 430 (28.2) | |
| Missing | 4 | 31 | |
| Marital Status | |||
| Married/ Living as married | 35 (20.0) | 294 (19.2) | 0.02 |
| Divorced/ Separated/ Widowed | 23 (13.1) | 105 (6.8) | |
| Never Married | 116 (66.3) | 1,126 (73.4) | |
| Refused to state | 1 (0.6) | 10 (0.7) | |
| Missing | 0 | 19 | |
| Smoking | |||
| Current | 35 (20.8) | 212 (13.9) | <0.01 |
| Former | 25 (14.9) | 114 (7.5) | |
| Never | 108 (64.3) | 1,201 (78.7) | |
| Missing | 7 | 27 | |
| Injury/event prior to 6 mo before enrollment | |||
| Yes | 14 (9.0) | 107 (7.3) | 0.40 |
| No | 141 (91.0) | 1,359 (92.7) | |
| Missing | 20 | 88 | |
| Facial pain prior to enrollment | |||
| Yes | 44 (25.4) | 208 (13.5) | <0.01 |
| No | 129 (74.6) | 1,331 (86.5) | |
| Missing | 2 | 15 | |
| Pain from palpation (body) | |||
| None | 64 (36.8) | 787 (50.6) | <0.01 |
| Any | 110 (63.2) | 767 (49.4) | |
| Missing | 1 | 0 | |
| Pain from palpation (neck) | |||
| None | 97 (55.8) | 1,100 (70.8) | <0.01 |
| Any | 77 (44.3) | 454 (29.2) | |
| Missing | 1 | 0 | |
| mean (±sd) | |||
| Age | 29.1 (8.8) | 26.8 (7.7) | <0.01 |
| Oral Behavior Checklist sum score | 23.9 (10.0) | 20.1 (8.5) | <0.01 |
| Missing | 0 | 29 | |
| SCL 90R Depression (Median (IQR)) | 0.4 (0.7) | 0.2 (0.4) | <0.01† |
| Missing | 0 | 3 | |
| SCL 90R Anxiety (Median (IQR)) | 0.1 (0.4) | 0.1 (0.2) | <0.01† |
| Missing | 0 | 3 | |
| Physical sxs: PILL | 99.8 (26.4) | 87.6 (20.0) | <0.01 |
| Missing | 0 | 2 | |
| PCS coping (Median (IQR)) | 9.0 (16.0) | 7.0 (12.0) | 0.20† |
| Missing | 0 | 1 | |
| Mood state (POMS) | |||
| Bi: Positive Affect | 85.0 (15.5) | 88.2 (15.3) | <0.01 |
| Missing | 0 | 11 | |
| Bi: Negative Affect | 52.8 (16.0) | 48.9 (15.4) | <0.01 |
| Missing | 0 | 11 | |
*
χ2 test for categorical variables and t-test for continuous variables
†
Fisher’s exact test for categorical variables and Wilcoxon-test for continuous variables
sd: standard deviation