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Table 4 Univariate and hierarchial multivariate regression analysis with neuropsychological tests as dependent and AES-C-Apathy and possible counfounders as independent variables

From: Apathy is associated with executive functioning in first episode psychosis

 

Dependent

Dependent

Dependent

 

Letter Number Span

Phonetic fluency

Semantic fluency

Independent variables

R2adj

β

t

p

R2 adj

β

t

p

R2 adj

β

t

p

Univariate

            

   AES-C-Apathy

.05

-.26

-2.2

.04

.05

-.25

-2.2

.03

.12

-.37

-3.3

<.01

Hierarchial

            

   DDD-AP

.01

-.13

-1.1

.30

.02

-.19

-1.6

.12

.00

-.12

-1.0

.31

   PANSS positive

.01

-.06

-.5

.62

.01

.07

.6

.56

-.01

.04

.3

.75

   CDSS

-.09

.05

.3

.72

-.02

.05

.4

.72

-.03

.15

1.2

.25

   AES-C-Apathy

.04

-.27

-2.0

.05

.05

-.29

-2.2

.03

.12

-.44

-3.5

<.01

  1. adj = adjusted; DDD-AP, indicates defined daily dose according to the World Health Organization of antipsychotic medication PANSS, Positive and Negative syndrome Scale; CDSS, Calcary Depression Scale for Schizophrenia; AES-C-Apathy, abridged Apathy Evaluation Scale