Table 3.
White and Racial/Ethnic Minority Comparisons for Clinical and Health Outcomes at Baseline
| Test | Statistic | p | Effect Size | |
|---|---|---|---|---|
| Number of TP | Poisson Regression | χ2(1) = 4.47 | 0.034* | IRR REM/W = 1.105 |
| Cumulative TP Pain | Independent-Samples t-test | t(596) = 2.631 | 0.009* | Cohen’s d = 0.304 |
| Number of Words to Describe Pain from MPQ | Poisson Regression | χ2(1) = 19.55 | 0.006* | IRR REM/W = 1.160 |
| PPI from MPQ | Ordered Logistic Regression | χ2(1) = 1.12 | 0.291 | Pseudo R2 < 0.001 |
| Health Rating | Ordered Logistic Regression | χ2(1) = 10.98 | 0.001* | Pseudo R2 = 0.007 |
| Other Rheumatic Disorder(s) | Test of Independence | χ2(1) = 5.26 | 0.02* | ORREM/W = 0.566 |
| Sum of Trauma Severity Ratings | Independent Samples t-test | t(543) = 0.466 | 0.641 | Cohen’s d = 0.057 |
Note: *p ≤ 0.05.
Abbreviations: TP, Tender Points; MPQ, McGill Pain Questionnaire; PPI, Present Pain Index; IRR, Incidence Rate Ratio; OR, Odds Ratio; REM, Racial/Ethnic Minority; W, White.