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Table 2 Overview of patient and informal caregiver assessments at baseline and follow-up

From: Diagnostic and economic evaluation of new biomarkers for Alzheimer’s disease: the research protocol of a prospective cohort study

Outcome measure

Operationalization/type of instrument

B

T3

T12

T24

Clinical data

     

Demographic data

History taking

P

 

P

P

Cognitive impairment

Mini-mental State Examination

P

 

P

P

Dementia severity

Clinical Dementia Rating

P

 

P

P

Functional disability

Disability Assessment for Dementia

P

 

P

P

Neurological and physical examination

Neurological assessment and evaluation of co-morbidities

P

 

P

P

Neuropsychiatric problems

Neuropsychiatric Inventory

P

 

P

P

Depression

Geriatric Depression Scale 15

P

 

P

P

Cerebral atrophy and white matter lesions

Structural MRI (T1-weighted, T2-weighted and FLAIR)

P

   

Neuropsychological Assessment

Rey’s Verbal Learning Test, Visual Association Test, Digit-Span, Letter Digit Substitution Test, Stroop Color-Word Test, Trail Making Test

P

 

P

P

Quality of life data

     

Patient generic quality of life

EQ-5D

I*/P

I*

I*/P

I*/P

Patient disease specific quality of life*

QoL-AD

I *

I *

I *

I *

Caregiver generic quality of life*

EQ-5D

I

I

I

I

Caregiver disease specific quality of life*

QoL-AD

I

I

I

I

Caregiver burden*

Sense Of Competence

I

I

I

I

Care-related quality of life*

Carer Quality of Life

I

I

I

I

Cost data*

     

Resource utilization and caregiver time

RUD-Lite

I

I

I

I

Work productivity and absence

Productivity and Disease Questionnaire

I

I

I

I

Consequences of informal caregiving on paid or unpaid work

Health and Labour Questionnaire

I

I

I

I

Other resource use

 

I

I

I

I

Emerging biomarker data

     

Functional connectivity

Resting state functional MRI

P

   

White matter integrity

Diffusion tensor imaging

P

   

Hippocampal volume

Structural MRI

P

   

Glucose metabolism

Fluorodeoxyglucose PET†

P

   

Amyloid plaque deposition

Pittsburgh compound B PET†, CSF Aβ1-42

P

   

Tau

CSF total tau, CSF phosphorylated tau

P

   
  1. *These items were assessed by the informal caregiver by means of a booklet in which several questionnaires were composed for resource consumption and quality of life.
  2. †Data on this item are only collected at the memory clinic of the VU University Medical Centre Amsterdam.
  3. Abbreviations: B, Baseline; FLAIR, Fluid attenuation inversion recovery; I, Information retrieved from informal caregiver; MRI, Magnetic Resonance Imaging; P, Information retrieved from patient; PET, positron emission tomography; QoL-AD, Quality of Life Alzheimer’s Disease scale; RUD-Lite, Resource Utilization In Dementia; T3, 3 month follow-up measurement; T12, 12 month follow-up measurement; T24, 24 month follow-up measurement.