Table 3.
Psychosocial Variables: Change Scores* (SEM) across Groups from Baseline to Follow-Up
| Baseline Classification | Non-TMD | Incident-TMD | Chronic-TMD | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Follow-Up Classification | Non-TMD | a | TMD | a | b | Non-TMD | a | b | TMD | a | b | Non-TMD | a | b | TMD | a | b |
| PILL Total Score (54–270) | 2.0 (1.9) | 17.3 (4.6) | X | X | 2.7 (4.7) | 20.9 (4.6) | X | X | −2.3 (3.9) | 1.7 (2.6) | |||||||
| SCL-90R Depression (0–4) | 0.1 (0.03) | 0.4 (0.1) | X | −0.01 (0.1) | 0.3 (0.1) | X | −0.1 (0.1) | −0.1 (0.04) | |||||||||
| SCL-90R Somatization (0–4) | 0.01 (0.1) | 0.3 (0.1) | X | X | −0.2 (0.1) | 0.1 (0.1) | X | −0.2 (0.1) | X | −0.01 (0.1) | X | ||||||
| Perceived Stress Scale (0–40) | −1.6 (0.6) | X | 0.6 (1.4) | −3.0 (1.5) | 0.02 (1.5) | −2.4 (1.2) | −1.1 (0.8) | ||||||||||
| POMS Negative Affect (30–120) | 3.7 (1.5) | X | 4.4 (3.5) | 2.1 (3.7) | 13.8 (3.6) | X | X | 2.7 (3.0) | 4.1 (2.0) | X | |||||||
| POMS Positive Affect (30–120) | −3.6 (1.3) | X | −4.9 (3.1) | 1.8 (3.3) | −4.7 (3.2) | 0.8 (2.6) | 0.9 (1.8) | X | |||||||||
| Trait Anxiety (20–80) | 0.7 (0.8) | 5.4 (1.9) | X | 0.2 (2.0) | 4.3 (2.0) | X | −2.4 (1.6) | 0.8 (1.1) | |||||||||
| CSQ Catastrophizing (0–6) | −0.1 (0.1) | 0.3 (0.2) | 0.4 (0.2) | 0.4 (0.2) | −0.6 (0.2) | X | X | −0.2 (0.1) | |||||||||
| CSQ Coping Statements (0–6) | −0.3 (0.1) | 0.1 (0.3) | −0.2 (0.3) | −0.3 (0.3) | −0.2 (0.3) | −0.2 (0.2) | |||||||||||
| CSQ Distancing (0–6) | −0.2 (0.1) | 0.2 (0.3) | −0.8 (0.3) | X | 0.5 (0.3) | −0.1 (0.3) | −0.1 (0.2) | ||||||||||
| CSQ Distraction (0–6) | −0.3 (0.1) | 0.2 (0.3) | −0.3 (0.3) | 0.5 (0.3) | 0.1 (0.3) | −0.2 (0.2) | |||||||||||
| CSQ Ignoring Pain (0–6) | −0.1 (0.1) | −0.1 (0.3) | −0.5 (0.3) | 0.4 (0.3) | −0.2 (0.3) | 0.0 (0.2) | |||||||||||
| CSQ Praying (0–6) | −0.3 (0.1) | 1.1 (0.3) | X | X | −0.3 (0.3) | 0.2 (0.3) | −0.3 (0.3) | −0.3 (0.2) | |||||||||
Change scores computed by subtracting Baseline value from Follow-Up value, such that positive change scores indicate increased values at follow-up.
PILL=Pennebaker Inventory of Limbic Languidness; SCL-90R=Symptom Checklist-90 Revised; POMS=Profile of Mood States; CSQ=Coping Strategies Questionnaire
The “a” column indicates whether or not the change score was statistically different from 0 for that study group at p < 0.05, adjusting for demographics and study site.
The “b” column indicates whether or not the change score for that study group differed significantly from the change score for the reference group (Non-TMD/Non-TMD) at p < 0.05, adjusting for demographics and study site.