Table 4 Correlation coefficients and significance of SDMT and PASAT3 when controlling for age, fatigue, depression

SRT-Storage

0.409

<0.001*

0.306

<0.001*

SRT-Retrieval

0.472

<0.001*

0.370

<0.001*

SRT-Delayed

0.451

<0.001*

0.219

<0.001*

10/36

0.377

<0.001*

0.430

<0.001*

10/36 delayed

0.332

<0.001*

0.380

<0.001*

Semantic verbal fluency

0.375

<0.001*

0.303

<0.001*

Phonetic verbal fluency

0.401

<0.001*

0.436

<0.001*

STROOP word

0.386

<0.001*

0.304

<0.001*

STROOP color

0.552

<0.001*

0.537

<0.001*

STROOP word-color

0.512

<0.001*

0.465

<0.001*

STROOP interference

0.228

<0.001*

0.231

0.001*

WCST perseverative errors

−0.229

0.001*

−0.286

<0.001*

WCST no perseverative errors

−0.208

0.002*

−0.281

<0.001*

WCST categories

0.220

0.001*

0.261

0.001*

Line orientation Test

0.331

<0.001*

0.238

0.001*

WAIS matrix subtest

0.417

<0.001*

0.435

<0.001*

RIVERMEAD

0.435

<0.001*

0.419

<0.001*