Table 2 Multiple linear regression models for the NCT-A and DST in healthy controls.

From: Regression-based Chinese norms of number connection test A and digit symbol test for diagnosing minimal hepatic encephalopathy

Test

Predictor

B

SE

β

t

P

VIF

Adjusted r2

NCT− A

Intercept

1.701

0.018

 

95.302

0.000

 

0.130

Age (y)

0.003

0.000

0.270

6.248

0.000

1.389

Gender*

− 0.026

0.011

− 0.090

− 2.406

0.016

1.043

Interaction (Education (y) * Gender)

− 0.003

0.001

− 0.106

− 2.475

0.014

1.356

DST

Intercept

50.357

1.477

 

34.105

.000

 

0.393

Age (y)

− 0.477

0.039

− 0.450

− 12.319

0.000

1.421

Gender*

3.682

0.895

0.129

4.114

0.001

1.045

Education (y)

0.973

0.138

0.258

7.075

0.000

1.417

Interaction (Age (y) * Education (y))

− 0.032

0.01

− 0.107

− 3.237

0.001

1.169

  1. *Male is calculated as 1, and female is calculated as 2.
  2. DST, digit symbol test; SE, standard error; NCT-A, number connection test-A; VIF, variance inflation factor.
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