Table 4.
Performance Means (Standard Errors) Adjusted for Age for FM and Non-FM Groups Across Cognitive Domains
| M (SE) | ||
|---|---|---|
| FM | Non-FM | |
| Interference/inhibitiona | ||
| Stroop C time (s) | 61.1 (1.8) | 58.4 (1.7) |
| Stroop Color/Word time (s)* | 155.3 (5.3) | 137.8 (5.2) |
| Working memorya | ||
| Digit Span Forward (longest score) | 10.0 (0.3) | 10.0 (0.3) |
| Digit Span Backward (longest score) | 6.3(0.3) | 7.2 (0.3) |
| Processing speed | ||
| Trails A time (s) | 39.1 (2.3) | 34.1 (2.2) |
| Set-Shifting/Complex Sequencinga | ||
| Trails B time (s) | 83.0 (5.2) | 78.7 (5.0) |
| Verbal fluency, monitoringa | ||
| Animals (#named) | 19.6 (0.2) | 19.3 (0.2) |
| Problem solvinga | ||
| Everyday Problems Test (#correct) | 14.5 (0.4) | 15.4 (0.4) |
| Processing speed | ||
| Digit Symbol Substitution (#correct)** | 57.7 (2.4) | 68.2 (2.3) |
| Explicit memory | ||
| Immediate recall trials 1–3 (#correct) | 21.0 (0.6) | 21.0 (0.6) |
| Delayed recall (#correct) | 6.7 (1.9) | 6.5 (1.8) |
| Delayed recognition (#correct) | 19.6 (0.2) | 19.3 (0.2) |
Note. FM = fibromyalgia.
aConsidered aspects of attention/executive function
Significant differences per group at *p < .05 and **p < .005.