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Table 3 Estimated mean change in the primary outcome and in other neuropsychological assessment

From: TRanscranial AlterNating current stimulation FOR patients with mild Alzheimer’s Disease (TRANSFORM-AD): a randomized controlled clinical trial

 

Change from the baseline to the end of intervention

Change from the baseline to 3-month follow-up

tACS group, mean change (95%CI)

Sham group, mean change (95%CI)

standardized coefficients for group*time

Model Fit Indices (AIC)

P value

tACS group, mean change (95%CI)

Sham group, mean change (95%CI)

Standardized

Coefficients for group*time

Model Fit Indices (AIC)

P value

ADAS-Cog*

-1.652

(-4.882 to 1.578)

0.130

(-3.324 to 3.585)

-0.320

570.32

0.449

-0.741

(-3.834 to 2.352)

0.085

(-3.875 to 4.044)

-0.148

526.808

0.739

MMSE*

3.000

(1.022 to 4.978)

0.043

(-2.037 to 2.124)

0.839

482.45

0.041

1.041

(-0.928 to 3.010)

0.162

(-2.269 to 2.593)

0.250

450.277

0.569

MoCA#

2.217

(-0.010 to 4.445)

0.348

(-2.009 to 2.705)

-

-

0.025

0.859

(-1.425 to 3.143)

1.150

(-1.694 to 3.993)

-

-

0.322

WHO-UCLA AVLT

          

 Immediate recall*

1.652

(-2.310 to 5.614)

-1.348

(-4.131 to 1.435)

0.520

574.47

0.215

1.027

(-2.949 to 5.043)

-0.493

(-3.477 to 2.492)

0.269

528.483

0.544

 Delayed recall#

1.870

(0.058 to 3.681)

-0.130

(-0.915 to 0.654)

-

-

0.027

0.909

(-0.535 to 2.352)

0.056

(-0.861 to 0.973)

-

-

0.220

 Recognition#

0.478

(-1.693 to 2.650)

0.543

(-1.391 to 2.608)

-

-

0.439

-1.039

(-3.151 to 1.072)

0.014

(-1.912 to 1.941)

-

-

0.611

Digit span forward#

0.174

(-0.604 to 0.951)

0.043

(-0.597 to 0.684)

-

-

0.669

0.095

(-0.834 to 1.025)

-0.058

(-0.789 to 0.673)

-

-

0.872

Digit span backward#

-0.043

(-0.669 to 0.582)

0.261

(-0.559 to 1.081)

-

-

0.315

0.110

(-0.462 to 0.682)

0.290

(-0.604 to 1.184)

-

-

0.618

BNT#

2.130

(0.217 to 4.044)

1.478

(-1.556 to 4.512)

-

-

0.229

0.460

(-1.899 to 2.818)

0.483

(-2.762 to 3.728)

-

-

0.531

TMT B-A*

-8.565

(-57.889 to 40.759)

-40.391

(-89.201 to 8.418)

0.383

1043.06

0.358

1.876

(-49.466 to 53.217)

-20.542

(-70.301 to 29.217)

0.277

947.73

0.535

ADL#

-0.230

(-2.312 to 1.853)

0.095

(-2.722 to 2.911)

-

-

0.161

0.605

(-1.466 to 2.676)

-0.531

(-3.162 to 2.100)

-

-

0.366

NPI#

-0.947

(-4.069 to 2.174)

0.085

(-7.236 to 7.406)

-

-

0.998

-0.095

(-3.779 to 3.589)

2.686

(-5.384 to 10.756)

-

-

0.162

GDS#

-0.573

(-3.258 to 2.111)

-1.409

(-4.015 to 1.197)

-

-

0.884

-1.439

(-4.391 to 1.509)

-0.581

(-3.374 to 2.212)

-

-

0.576

  1. * The data followed a normal distribution and were analyzed using a mixed-effects model, with the p-value for the group*time interaction
  2. # The data did not follow a normal distribution, so the Mann-Whitney U non-parametric test was used to compare the differences in changes before and after the intervention