Table 3. Correlations between clinical variables and body mass index and cognitive test scores in FMS patients.
| Test | Trait anxiety (STAI) | State anxiety (STAI) | Depression (BDI) | Fatigue (FSS) | Insomnia (COS) | Hypersomnia (COS) |
Sensory Pain (MPQ) | Affective pain (MPQ) |
Miscellaneous Pain (MPQ) | Current Pain Intensity (MPQ) | BMI |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Letter Number Sequencing | -.02 | .15 | .19 | .16 | .17 | -.01 | -.05 | -.06 | -.06 | -.07 | -.31* |
| Arithmetic | .11 | .11 | .11 | .11 | .20 | -.04 | -.07 | .03 | -.04 | .06 | -.21 |
| Spatial Span | -.15 | -.03 | .05 | -.01 | -.02 | -.14 | -.20 | -.13 | -.15 | -.20 | -.07 |
| N-back task (1-back) | -.13 | -.03 | -.13 | .25 | .19 | .06 | -28* | -.09 | -.18 | .09 | -.05 |
| N-back task (2-back) | .08 | .04 | .03 | -.04 | .25 | -.16 | -.23 | -.36** | -.25 | .04 | .04 |
| Verbal fluency | .09 | .03 | .01 | .15 | .04 | -.03 | -.20 | -.27 | -.22 | -.17 | -.15 |
| Ruff Figural Fluency Test | .04 | -.11 | -.01 | .12 | .22 | .04 | -.06 | -.06 | .01 | .04 | -.14 |
| Similarities | -.01 | .08 | .09 | .27 | .12 | -.08 | -.19 | -.13 | -.23 | -.05 | -.35* |
| Stroop Test: Inhibition | .20 | .23 | .13 | -.27 | -.07 | .05 | .11 | .13 | .10 | .12 | .38** |
| Stroop Test: Shifting | -.05 | -.07 | -.10 | .14 | .04 | -.04 | .03 | .04 | -.09 | -.02 | .08 |
| Five Digits Test: Inhibition | .01 | .12 | .04 | -.07 | -.07 | .13 | .13 | .04 | .12 | .18 | .31* |
| Five Digits Test: Shifting | -.02 | .02 | -.11 | -.19 | -.04 | .04 | .19 | .15 | .20 | .14 | .51** |
| Wisconsin Card Sorting Test | -.20 | -.15 | -.24 | -.18 | -.18 | .03 | .30* | .08 | .25 | .08 | .32* |
| Iowa Gambling Task | -.22 | -.10 | -.18 | -.36* | -.02 | -.27* | -.17 | -.18 | -.13 | -.27* | -.14 |
| Key Search Task | .05 | -.06 | -.16 | .01 | .19 | -.03 | -.05 | -.01 | .03 | .04 | -.15 |
| Zoo Map Test | .01 | .04 | .21 | .18 | .11 | -.00 | .08 | .04 | -.06 | .09 | -.17 |
| Revised Strategy Application Test | -.06 | -.18 | -.05 | -.13 | -.08 | .14 | .07 | .01 | .11 | .04 | -.14 |
Note
** p < 0.01
* p < 0.01, two-tailed testing.