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Table 2 Demographically adjusted performance z-scores with cognitive domains

From: Neuropsychological function in individuals with morbid obesity: a cross-sectional study

Measure

Mean (SD)

Minimum

Maximum

t-value

 CVLT Total recall

.695 (1.406)

−4.720

3.8

 

 CVLT Immediate free recall

.394 (1.117)

−3.500

2.000

 

 CVLT Delayed free recall

.415 (1.020)

−2.500

2.000

 

 WMS-R Verbal memory 1

.567 (.871)

−1.881

2.326

 

 WMS-R Verbal memory 2

.688 (.883)

−2.326

2.326

 

Verbal memory mean

.552 (0.842)

−2.011

2.256

6.391**

 WMS-R Visual memory 1

.291 (.805)

−1.555

2.054

 

 WMS-R Visual memory 2

-.226 (.875)

−2.326

2.326

 

 RCFT Immediate recall

-.532 (1.199)

−4.900

1.600

 

 RCFT Delayed recall

-.568 (1.321)

−4.900

1.800

 

Visual memory mean

-.259 (.838)

−2.692

1.895

−3.024*

 D-KEFS CWIT Color naming

-.382 (.807)

−3.333

1.000

 

 D-KEFS CWIT Word reading

-.115 (.707)

−2.333

1.000

 

 WAIS-III Digit symbol

-.326 (.742)

−1.667

2.000

 

 TMT A

-.046 (1.256)

−5.000

2.100

 

Processing speed mean

-.219 (.595)

−1.825

.908

−3.567*

 WAIS III Block design

.340 (.957)

−1.667

3.000

 

 WAIS III Matrix reasoning

.361 (.875)

−1.667

2.333

 

 RCFT Copya

-.036 (1.067)

−3.505

1.549

 

Visuospatial ability mean

.152 (.810)

−1.766

1.835

1.838

 WMS-R Digit span forward

.308 (.889)

−2.326

2.326

 

 WMS-R Digit span backward

.882 (1.183)

−1.645

2.326

 

 PASAT3

-.190 (1.015)

−3.274

1.529

 

 PASAT2

−1.057 (.988)

−4.107

.794

 

Working memory mean

.002 (.658)

−1.418

1.450

.033

 WCST Total error

-.670 (.993)

−3.000

2.000

 

 WCST Perseverative responses

-.503 (.777)

−2.700

2.900

 

 D-KEFS Tower total correct

.203 (.701)

−2.000

1.667

 

 D-KEFS Tower precision score

-.284 (.901)

−2.667

3.000

 

 TMT B

-.167 (1.246)

−3.900

1.800

 

 D-KEFS CWIT Inhibition

.063 (.848)

−3.000

1.333

 

 D-KEFS CWIT Inhibition/switching

-.182 (1.015)

−3.000

1.333

 

Executive function mean 1 (Tower total)

-.198 (.572)

−2.272

1.267

−3.290*

Executive function mean II (Tower precision)

-.283 (.551)

−1.772

1.156

−4.867**

 D-KEFS Letter fluency

.020 (1.230)

−2.333

3.000

 

 D-KEFS Category fluency

.677 (1.347)

3.000

6.000

 

 D-KEFS Category switching

.031 (946)

−2.333

2.333

 

Verbal fluency mean

.243 (.967)

−2.333

2.444

2.461**

 (CPT-II) Omissions

-.455* (1.176)

−4.620

.790

 

 Commissions

-.552 (1.172)

−3.689

1.429

 

 Hit rate

.470 (1.275)

−3.876

3.398

 

 Hit RT SE

-.565 (1.346)

−4.985

2.010

 

 Detectability

-.429 (.865)

−3.302

1.674

 

 Hit RT block change

-.266 (1.087)

−3.172

2.584

 

 Hit SE block change

-.898 (1.311)

−7.590

1.456

 

 Hit RT ISI change

-.034 (1.301)

−4.247

2.404

 

 Hit SE ISI change

.009 (1.356)

−4.462

2.672

 

Attention/vigilance mean

-.251 (.557)

−1.50

.76

−4.254**

 Dynamometer Dominant hand

-.109 (1.058)

−2.400

2.300

 

 Dynamometer Non-dominant hand

.023 (1.076)

−1.700

3.200

 

 Pegboard Dominant hand

-.247 (1.147)

−5.000

2.100

 

 Pegboard Non-dominant hand

-.333 (1.329)

−5.000

1.700

 

Motor function mean

-.154 (.780)

−1.750

1.350

−1.802

  1. Notes: No normative data was available for the Category test 108-card version. Thus this test was left out from further analysis
  2. aRCFT Copy: A US sample of 98 healthy controls similar in age and years of education were used as reference
  3. *p-value < .05
  4. **p-value < .001