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Table 5 Results of the neuropsychologic test between the two groups

From: The impact of subthreshold levels of amyloid deposition on conversion to dementia in patients with amyloid-negative amnestic mild cognitive impairment

  

Non-converter (N = 64)

Converter (N = 39)

P value

Attention

Digit span forward

− 0.223 ± 1.238

0.033 ± 1.140

0.300

Digit span backward

− 0.391 ± 1.175

− 0.251 ± 1.262

0.579

Language

K-BNT

− 0.637 ± 1.078

− 1.062 ± 1.229

0.069

Visuospatial

RCFT copy

0.006 ± 0.937

− 0.469 ± 1.442

0.072

Memory

SVLT-E immediate recall

− 1.103 ± 0.771

− 1.071 ± 0.855

0.842

SVLT-E delayed recall

− 1.268 ± 0.925

− 1.610 ± 0.834

0.063

SVLT-E recognition

− 0.909 ± 1.153

− 0.971 ± 1.203

0.795

RCFT immediate recall*

− 0.563 ± 0.952

− 1.120 ± 0.679

0.001

RCFT delayed recall*

− 0.652 ± 0.854

− 1.321 ± 0.648

< 0.001

RCFT recognition*

− 0.571 ± 1.393

− 1.355 ± 0.996

0.001

Frontal/executive

COWAT animal*

− 0.346 ± 1.563

− 0.970 ± 1.045

0.018

COWAT supermarket

− 0.441 ± 1.210

− 0.808 ± 0.698

0.056

COWAT phonemic

− 0.613 ± 1.064

− 0.825 ± 0.755

0.273

Stroop test color reading

− 0.872 ± 1.402

− 1.222 ± 1.163

0.214

  1. The results of the neuropsychological tests were analyzed using an age-adjusted ANCOVA test
  2. K-BNT, Korean version Boston naming test; RCFT, Rey complex figure test; SVLT-E, Seoul verbal learning test-elderly; COWAT, controlled oral word association test; ANCOVA, analysis of covariance
  3. *P < 0.05