Clinical Study
Opioid Use in Fibromyalgia Is Associated with Negative Health Related Measures in a Prospective Cohort Study
Table 3
Results of Multivariate and Univariate tests of General Linear Model Repeated Measures.
| Variable |
Multivariate test—Wilk’s Lambda— |
Between-Subject Effects—Main effect of Opioid status— |
Interaction Opioid status * time | Function | | sig | Eta squared | | sig | Eta squared | | sig | Eta squared |
| FIQ | 13.15 | 0.001 | 0.95 | 11.08 | 0.001 | 0.081 | 0.493 | 0.484 | 0.004 | HAQ | 3.651 | 0.58 | 0.028 | 5.246 | 0.024 | 0.039 | 6.716 | 0.011 | 0.049 | Depression | 50.169 | 0.001 | 0.280 | 2.554 | 0.112 | 0.019 | 0.538 | 0.464 | 0.004 | Anxiety | 13.167 | 0.001 | 0.093 | 0.800 | 0.373 | 0.006 | 0.181 | 0.671 | 0.001 | VAS | 4.420 | 0.037 | 0.033 | 5.434 | 0.021 | 0.041 | 0.632 | 0.428 | 0.005 | PGA | 2.264 | 0.135 | 0.017 | 8.231 | 0.005 | 0.060 | 0.377 | 0.540 | 0.003 | McGill Total | 13.102 | 0.001 | 0.093 | 9.905 | 0.002 | 0.072 | 2.046 | 0.155 | 0.016 | Catastrophizing | 24.048 | 0.001 | 0.159 | 1.015 | 0.316 | 0.008 | 0.295 | 0.588 | 0.002 |
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