Table 5.
Adjusted ethnic/race group comparisons in clinical pain, psychosocial stress and salivary cortisol.
| F Value | P | |
|---|---|---|
| Clinical pain measures | ||
| GCPS CPI | 10.47 | <0.0001 |
| GCPS Disability* | 8.79 | <0.0001 |
| Number of Pain Sites | 8.14 | <0.0001 |
| Chronic Pain Burden Index | 6.69 | <0.0001 |
| Psychosocial stress measures | ||
| EOD* | 8.35 | <0.0001 |
| SRE | 4.90 | 0.0002 |
| PSS | 1.80 | 0.1071 |
| Financial Satisfaction* | 8.89 | <0.0001 |
| Material Satisfaction* | 7.58 | <0.0001 |
| Salivary cortisol measures | ||
| Evening (T1)* | 2.11 | 0.0423 |
| Morning Waking (T2) | 1.89 | 0.0709 |
| 45 Minute After Waking (T3) | 0.91 | 0.5141 |
| Pre-QST (T4) | 0.62 | 0.7612 |
| Post-QST (T5) | 1.08 | 0.3850 |
| Slope (T1-T3) | 1.87 | 0.0757 |
| AUC (T1-T5) | 1.39 | 0.2099 |
Clinical Pain Measures: GCPS CPI= Graded Chronic Pain Scale Characteristic Pain Intensity Score; GCPS disability= Graded Chronic Pain Scale Disability Score.
Psychosocial Stress Measures: EOD= Experiences of Discrimination; SRE= Schedule of Recent Experiences; PSS= Perceived Stress Scale.
Note: T1 = first collection; T2 = second collection; T3 = third collection; T4 = fourth collection; T5 = fifth collection; Slope (T1-T3)= slope of evening, waking and 45 min after waking; AUC (T1-T5)= Area Under the Curve over all 5 time points.
Explanatory variables: sex, race, age, number of comorbidities, highest education, income.
For cortisol analyses – PSQI and CESD also included.
*Ethnicity/race found to be statistically significantly different (p < 0.05).