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Table 2 Correlations amongst neuropsychological domains, self-rated cognitive deficits and disability across physical, mental-health and functional domains.

From: Disability in major depression related to self-rated and objectively-measured cognitive deficits: a preliminary study

 

BDQ Physical

BDQ Mental-health

BDQ Functional

SF-12 Wellbeing

Age

.03

-.17

.08

.37

HDRS

.72**

.70**

.77***

-.49*

Medical burden

.36

.22

.38

.03

Objectively-measured neuropsychological domains #

Psychomotor speed

-.63**

-.21

-.16

.08

Initial learning

-.15

.08

-.01

-.04

Memory retention

-.51* a

-.39

-.62**

.16

Executive functions

-.40

.01

.07

.10

Self-rated cognitive deficits

Concentration

.41

.54* a

.47

-.62**

Speed

.54* a

.63**

.60*

-.55**

Short-term memory

.35

.53* a

.60*

-.59**

Overall rating

.73***

.71**

.60*

-.43

  1. HDRS, Hamilton Depression Rating Scale.
  2. BDQ, Brief Disabilty Questionnaire; higher scores indicate more disability.
  3. SF-12 wellbeing, Medical Outcomes Short Form Survey; lower scores indicate more disability.
  4. #Negative correlations with BDQ items or positive correlations with SF-12 scores indicate poor neuropsychological performance is associated with greater disability.
  5. *Significant at p < 0.05; **Significant at p < 0.01; ***Significant at p < 0.001.
  6. aNon-significant after bonferroni correction for each domain of functioning (0.05/4; α = 0.0125).