Validity and Reliability of the GPCOG -TR

February 13, 2023 updated by: Yeditepe University

Validity and Reliability of the Turkish Version of General Practitioner Assessment of Cognition

The General Practitioner assessment of Cognition (GPCOG) was specifically developed as a brief cognitive screening tool to be used by general practitioners (GPs). It consists of a patient section testing cognition and an informant section asking historical questions. The aim of this study was to test the validity and reliability of the Turkish version of GPCOG-TR on Turkish older adults.

Study Overview

Status

Recruiting

Conditions

Dementia

Study Type

Observational

Enrollment (Anticipated)

230

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Turkey
- Ataşehir
  - Istanbul, Ataşehir, Turkey
    - Recruiting
    - Yeditepe University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

65 years and older (Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

The participants of this study were members of the Neurology Department of Maltepe University Medical Faculty Hospital.

Description

Inclusion Criteria:

Age: least 55 years old
Provide informed consent
Diagnosed with dementia ( patient group)

Exclusion Criteria:

Living in a nursing home
Presence of psychiatric disorders requiring treatment
Presence of other comorbidity interfering with cognitive performance such as severe chronic heart failure, chronic obstructive pulmonary disease, diabetes, anemia Impairment of auditory or visual perception
Low education
Known cognitive impairment (for control group only)
Lack of a reliable informant.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Observational Models: Case-Control
Time Perspectives: Cross-Sectional

Number of groups / cohorts

Cohorts and Interventions

Group / Cohort
Patient group who diagnosed with dementia
Control group who diagnosed as healthy (don't have dementia)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The Clinical Dementia Rating score (CDR) Time Frame: 1-2 hrs	The scoring system from 0 to 3 ( 0 means healthy while 3 Severe dementia )	1-2 hrs
the General Practitioner Cognitive Assessment tool (GPCOG-TR) Time Frame: 10 min	Total score: 15 9 for the patient part 6 for the informant part ( The lower the score the more serious is the cognition is)	10 min

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The Mini-mental State Examination (MMSE) Time Frame: 10 min	Total score : 30 Scores of 25-30 out of 30 are considered normal, 21-24 as mild, 10-20 as moderate and below 10 as severe impairment.	10 min
Alzheimer's Disease Assessment Scale-Cognitive scale (ADAS-Cog) Time Frame: 30 min	The total ADAS-Cog score ranges from 0-70 with higher scores suggesting greater impairment.	30 min
Geriatric Depression Scale (GDS) Time Frame: 5 min	Total score : 15 0-4 are considered normal, depending on age, education, and complaints; 5-8 indicate mild depression; 9-11 indicate moderate depression; and 12-15 indicate severe depression.	5 min

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Yeditepe University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 6, 2022

Primary Completion (Anticipated)

February 20, 2023

Study Completion (Anticipated)

March 26, 2023

Study Registration Dates

First Submitted

January 19, 2023

First Submitted That Met QC Criteria