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Table 2 Zero-Order Correlation Between Variables

From: Perceived stress and depressive symptoms not neuropsychiatric symptoms predict caregiver burden in Alzheimer’s disease: a cross-sectional study

 

Patient

Caregiver

CDR

ADL

NPI

Sex

Age

Education

PHQ-9

PSS

ZBI-12

CDR

1

        

ADL

−0.799**

1

       

NPI-Q

0.186

−0.142

1

      

Sex

0.088

−0.063

− 0.232*

1

     

Age

0.215*

−0.268**

− 0.021

0.069

1

    

Education

− 0.029

0.004

0.023

0.005

−0.279**

1

   

PHQ-9

0.242*

−0.310**

0.254**

0.146

0.006

0.141

1

  

PSS

0.113

−0.121

0.311**

0.029

−0.208*

0.233*

0.490**

1

 

ZBI-12

0.163

−0.187

0.370**

−0.098

0.002

0.193

0.540**

0.569**

1

  1. ADL Activities Daily Living (to assess patient’s functional status), CDR Clinical Dementia Rating (to assess patient’s disease severity), NPI Neuropsychiatric Inventory Questionnaires (to assess patient’s neuropsychiatric symptoms), PHQ-9 Patient Health Questionnaire-9 (to assess caregivers’ depressive symptoms), PSS Perceived Stress Scale (to assess perceived stress of caregiver), ZBI Zarit Burden Interview (to assess caregiver burden)
  2. *p < 0.05, **p < 0.01