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Table 3 Sociodemographic and general cognitive performance (z scores) of patients with schizophrenia and controls

From: Retrieval practice improves memory in patients with schizophrenia: new perspectives for cognitive remediation

 

Controls

(n = 20)

Patients with schizophrenia

(n = 19)

Statistics

Theta

CI 95%

Pr(Theta > 0)

M

SD

M

SD

M

SD

2.5%

97.5%

 

Socio-demographic variables

 Age

37.4

10.2

38.5

10.0

−.114

.337

−.777

.550

.365

 Gender (number of men, %)

13

65.0

13

68.4

.136

.641

−1.118

1.402

.584

 Years of schooling

12.6

1.7

11.9

2.1

.341

.331

−.311

.998

.852

Cognitive variables

 fNART

104.2

6.3

97.9

8.8

.770

.325

.129

1.408

.990

 WMS III first recall

.748

.715

−.334

1.021

.678

.184

.314

1.039

>.999

  differed recall

.932

.849

−.112

1.028

.681

.205

.277

1.084

>.999

  total recall

.982

.577

−.298

.987

.836

.178

.484

1.186

>.999

 WAIS IV symbols

−.282

.925

−1.165

.909

.508

.175

.165

.853

.998

  code

−.333

.771

−1.498

1.044

.716

.193

.337

1.097

>.999

  letter-number sequence

.633

1.097

−.389

1.205

.597

.226

.151

1.042

.995

  total number memory

.549

.898

−.446

.982

.664

.205

.259

1.068

.999

 Working memory direct span

−.557

1.031

−.988

1.010

.265

.206

−.144

.671

.902

  indirect span

−.164

.857

−.761

.880

.435

.203

.033

.831

.983

 Fluency phonological

.266

.922

.301

1.079

−.016

.180

−.373

.339

.463

  semantic

.281

1.101

−.301

.931

.581

.291

.004

1.150

.976

 Mill Hill

−.618

1.097

−.947

1.495

.150

.227

−.297

.596

.995

 TMT A (motor speed)

.032

.883

−.944

1.274

.588

.223

.147

1.024

.995

  (letter-number sequence)

.532

.622

−.484

1.455

.628

.231

.169

1.081

.996

  (flexibility index)

.462

.448

.091

.587

.365

.176

.016

.709

.980

 Ruff 2 & 7 total speed

.885

1.285

−.206

1.051

.678

.246

.191

1.162

.996

  total accuracy

.725

.365

.383

.824

.278

.181

−.081

.634

.938

Clinical variables

 PANSS total

  

52.3

16.7

     

  positive

  

12.0

6.5

     

  negative

  

15.3

5.3

     

 CDSS

  

1.4

2.8

     

 Chlorpromazine equivalents (mg)

  

290

      
  1. Note: Results are presented as Theta with a 95% Credible Interval (CI), with the probability of the Theta being above 0: Pr(Theta> 0). A large Pr(Theta> 0) value (e.g., > 0.95, > 0.975, or 0.99) must be interpreted as indicating lower values for patients compared to controls (for predictor group). A small value of Pr(Theta> 0), for instance, < 0.05, 0.025, or 0.01, reflects higher values for patients compared to controls. It is worth noting that the probability Pr(Theta> 0) can be interpreted as 1 – Pr(Theta< 0). Thus, probability values near 1 and 0 both indicate a significant effect
  2. PANSS Positive and Negative Syndrome Scale, CDSS Calgary Depression Scale for Schizophrenia, WCS Wechsler Cognitive Scale, WAIS Wechsler Adult Intelligence Scale, TMT Trail Making Test, fNART French National Adult Reading Scale
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BMC Psychiatry

ISSN: 1471-244X

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