Table 6 Mean group differences in BENCI subtests responses

Verbal Comprehension Figures Hits

HIV negative

317

7.030

.990

.056

.498

.000

HIV positive

258

6.530

1.171

.073

Verbal Comprehension Images Hits

HIV negative

318

7.540

.743

.042

.760

.000

HIV positive

259

6.780

1.220

.076

Continuous performance Hits

HIV negative

322

47.329

12.756

.712

1.928

.097

HIV positive

264

45.401

14.891

.916

Continuous performance RT Median

HIV negative

318

585.997

149.796

8.400

20.093

.061

HIV positive

260

565.904

107.263

6.652

Go No Go Hits

HIV negative

315

42.333

8.007

.451

.287

.709

HIV positive

258

42.047

9.968

.621

Go No Go Mean RT

HIV negative

315

.825

.007

.000

-.002

.023

HIV positive

252

.827

.009

.001

Processing Speed Median Reaction Time

HIV negative

313

584.931

146.541

8.283

20.6036

.048

HIV positive

267

564.328

102.179

6.253

Phonetic Fluency Hits

HIV negative

319

5.100

2.729

.153

1.658

.000

HIV positive

271

3.440

2.546

.155

Semantic Fluency Hits

HIV negative

321

7.310

3.295

.184

1.909

.000

HIV positive

271

5.410

3.440

.209

Working Memory Hits

HIV negative

319

10.510

6.060

.339

1.955

.000

HIV positive

270

8.560

6.314

.384

Verbal Memory Hits

HIV negative

264

6.240

2.249

.138

.747

.000

HIV positive

206

5.500

2.040

.142

Verbal Memory Hits Delayed

HIV negative

317

4.670

3.192

.179

1.125

.000

HIV positive

270

3.540

2.706

.165

Verbal Memory Hits Recognition

HIV negative

317

18.310

3.533

.198

.517

.089

HIV positive

270

17.790

3.810

.232

Planning Total Time

HIV negative

303

18,178.770

12,791.017

734.825

148.873

.891

HIV positive

259

18,029.900

12,776.036

793.864

Planning Time of First Option

HIV negative

304

3404.050

3027.831

173.658

-567.889

.036

HIV positive

259

3971.940

3316.305

206.065

Abstract Reasoning Hits

HIV negative

319

14.870

4.835

.271

4.261

.000

HIV positive

269

10.610

4.775

.291

Visual Motor Total time

HIV negative

320

70,080.740

28,797.814

1609.847

-18,559.339

.000

HIV positive

254

88,640.080

35,451.218

2224.407

Alternative Visual-Motor Total Time

HIV negative

315

74,940.830

36,611.539

2062.827

-22,239.897

.000

HIV positive

255

97,180.730

45,435.071

2845.254

Visual Memory Immediate Hits

HIV negative

278

6.140

2.295

.138

1.277

.000

HIV positive

207

4.860

2.030

.141

Visual Memory Delayed Hits

HIV negative

273

6.150

2.459

.149

1.289

.000

HIV positive

201

4.860

1.990

.140

Visual Memory Recognition Hits

HIV negative

314

44.580

5.122

.289

1.527

.003

HIV positive

264

43.050

6.975

.429

Spatial Stroop Hits

HIV negative

328

66.500

21.956

1.212

7.270

.000

HIV positive

270

59.230

23.769

1.447

Spatial Stroop Omission Errors

HIV negative

328

9.050

10.469

.578

-5.962

.000

HIV positive

270

15.010

16.667

1.014

Spatial Stroop Commission Errors

HIV negative

328

11.710

15.242

.842

-2.719

.032

HIV positive

270

14.430

15.571

.948

Spatial Stroop Mean Time

HIV negative

328

979.504

223.457

12.338

-68.133

.001

HIV positive

270

1047.638

249.922

15.210