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Table 1 Overview of instruments (measures)

From: Effectiveness and cost-effectiveness of an internet intervention for family caregivers of people with dementia: design of a randomized controlled trial

 

Pre-test

 

Post-tests

 

Intake

T = 1

T = 2

T = 3

T = 4

T = 5

Outcome measures in the RCT

      

- Depressive symptoms: CES-D

X

 

X

X

X

X

- Anxiety symptoms: HADS-A

X

 

X

X

X

X

- Role overload: SPPIC

 

X

X

X

X

X

- Caregiver perceived stress: RMBPC

 

X

 

X

X

X

Confounders/Modifying variables

      

- Perceived control: Mastery Scale

 

X

 

X

X

X

- Sense of competence: SSCQ

 

X

 

X

X

X

- Behavioral problems: RMBPC

 

X

 

X

X

X

- Demographic variables

X

     

- Diagnosis/Duration of symptoms

X

     

- Functional status of person with dementia: IQCODE

X

     

Outcome measures in the CEA

      

- Quality of life: EQ-5D+C

 

X

 

X

X

X

- Health care utilization: TIC-P

 

X

 

X

X

X

- Time spent on caregiving

X

  

X

X

X

  1. CES-D Centre for Epidemiological Studies Depression scale.
  2. EQ-5D+C EuroQol 5 Dimensions plus Cognition.
  3. HADS-A Hospital Anxiety and Depression Scale, Anxiety subscale.
  4. IQCODE Informant Questionnaire on Cognitive Decline in the Elderly.
  5. RMBPC Revised Memory and Behavioral Problem Checklist.
  6. SPPIC Self Perceived Pressure from Informal Care scale.
  7. SSCQ Short Sense of Competence Questionnaire.
  8. TIC-P iMTA Questionnaires on Costs Associated with Psychiatric Illness.