TABLE 2.
Moderated mediation model shows how clinical pain influences different functional connectivity, mediated through pain catastrophizing and moderated by ethnicity/race
| Outcome functional connectivity | WOMAC → Catas (path a) | Catas → Functional connectivity (path b1) | WOMAC → Functional connectivity (path c1′) | WOMAC → Ethnicity/Race → Functional connectivity (path c2′) | Catas → Ethnicity/Race → Functional connectivity (path b2) |
|---|---|---|---|---|---|
| B(SE) | B(SE) | B(SE) | B(SE) | B(SE) | |
| ACC | 0.139* (0.022) | 0.003 (0.009) | 0.002 (0.003) | −0.004 (0.005) | 0.034 (0.018) |
| dIPFC | 0.139* (0.022) | −0.007 (0.007) | 0.000 (0.002) | −0.010* (0.004) | 0.049* (0.014) |
| Insula | 0.139* (0.022) | −0.012 (0.008) | 0.002 (0.002) | −0.004 (0.005) | 0.037* (0.016) |
| SI | 0.139* (0.022) | −0.006 (0.010) | −0.001 (0.003) | −0.006 (0.005) | 0.049* (0.018) |
Note: S1 = Primary Somatosensory Cortex. Covariates include study site, age, sex, and education.
Abbreviations: ACC, anterior cingulate cortex; Catas, pain catastrophizing; dlPFC, dorsolateral prefrontal cortex; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.
Present if bootstrap confidence interval does not include zero and is considered statistically significant.