"Income Level and Its Effect in Older Adults"

November 18, 2025 updated by: Begüm AKAR

"Investigation of the Effect of Income Level in Older Adults: A Randomized Controlled Trial"

The aim of this study was to examine the effect of income level on cognitive function, pain, balance, lower extremity performance, gait, occupational competence, depression, and health-promoting behaviors in older adults.

Study Overview

Study Type

Observational

Enrollment (Actual)

223

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

    • Denizli
      • Pamukkale, Denizli, Turkey (Türkiye), 20000
        • Pamukkale 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

  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

elderly

Description

Inclusion Criteria:

  • Being 65 years of age or older
  • Volunteering to participate in the study
  • Elderly individuals scoring 6 or higher on the Hodkinson Mental Test

Exclusion Criteria:

  • Elderly individuals who cannot communicate due to conditions such as Alzheimer's disease, dementia, or psychosis
  • Having another chronic disease that may cause pain (rheumatic diseases, hemiplegia, multiple sclerosis, diabetes, etc.)
  • Having a neurological disease (hemiplegia, Parkinson's disease, multiple sclerosis, vertigo, epilepsy, etc.)
  • Being blind
  • Having orthopedic, neurological, or mental disabilities

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
minimum wage

Minimum Wage Group:

The elderly in this group consist of older adults earning a minimum wage.

What makes this study different is that participants are categorized according to income levels, and detailed analyses are conducted between the subgroups.
The difference between this study and other studies is that in this study, the elderly are categorized according to their income levels.
above minimum wage group

Above Minimum Wage Group:

The elderly in this group consist of older adults whose income levels are above the minimum wage threshold.

What makes this study different is that participants are categorized according to income levels, and detailed analyses are conducted between the subgroups.
The difference between this study and other studies is that in this study, the elderly are categorized according to their income levels.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mini-Mental State Examination (MMSE):
Time Frame: 10 minutes

Mini-Mental State Examination (MMSE):

The Mini-Mental State Examination is a scale used to assess individuals' cognitive status. It evaluates attention, orientation, memory, the ability to follow verbal and written commands, spontaneous writing, and copying complex drawings. The total score is 30, with a cutoff point of 24; scores below 24 indicate cognitive impairment. The Turkish validity and reliability study was conducted by Güngen et al. in 2002

10 minutes
Hodkinson mental test
Time Frame: 10 minutes
The Hodkinson Mental Test was developed by H.M. Hodkinson in 1972 and is used to assess cognitive functions in older adults. The test consists of 10 questions in total, with each correct answer worth 1 point. Scores below 7 indicate cognitive impairment. The test can be completed in less than 5 minutes and is a short, easy-to-administer tool that does not include culturally specific questions .
10 minutes
Dominant Side Single-Leg Stance Test
Time Frame: 1 minutes

Dominant Side Single-Leg Stance Test:

In this test, if the participant uses a walking aid, timing starts when they lift their dominant leg and release the aid; if not, timing begins when the dominant leg is lifted. The test ends when the foot touches the ground. If the participant can balance for more than 30 seconds, the test is completed. The duration is recorded in seconds. A result of less than 10 seconds indicates balance impairment, and less than 5 seconds indicates a risk of falling (17).

1 minutes
Sit-to-Stand Test
Time Frame: 2 minutes

Sit-to-Stand Test:

The participant, seated on a standard 43 cm-high chair with arms crossed over the shoulders, is asked to stand up and sit down as quickly as possible for 30 seconds. The number of full stands completed is recorded.

2 minutes
Modified Gait Efficacy Scale (MGES):
Time Frame: 3 minutes

Modified Gait Efficacy Scale (MGES):

The Modified Gait Efficacy Scale (MGES) is an adaptation of the original Gait Efficacy Scale (GES) used to assess an individual's confidence in walking safely and effectively. The MGES includes several questions measuring participants' confidence in various walking activities. These questions are typically answered on a Likert-type scale (e.g., 0 to 10), where 0 represents the lowest confidence and 10 represents the highest confidence (26).

3 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Geriatric Pain Scale
Time Frame: 5 minutes
The Geriatric Pain Scale, developed by Ferrell BA and colleagues in 2000, is a 24-item multidimensional scale. It assesses five dimensions: pain-related withdrawal (items 6, 17, 18, 19, 20, 21, 24), pain intensity (items 1, 2, 3, 4, 5, 22, 23), pain with movement (items 9, 10, 11, 12), pain during strenuous activities (items 8, 13, 14), and pain during other activities (items 7, 15, 16, 17, 22). Twenty-two items are scored as "Yes" or "No," and 2 items are scored on a 0-10 scale. Total scores range from 0 to 100, with 0-30 indicating mild pain, 30-69 moderate pain, and 70 or above severe pain (31). The Turkish validity and reliability study was conducted by Dursun and Bektas (2017). The Cronbach's alpha for the entire scale was 0.85, with subscale alpha values ranging from 0.67 to 0.93 (19).
5 minutes
Yesavage Geriatric Depression Scale (GDS) - Short Form:
Time Frame: 10 minutes

Yesavage Geriatric Depression Scale (GDS) - Short Form:

The Yesavage Geriatric Depression Scale, developed in 1983, assesses depressive mood in older adults and is self-reported. The 15-item short form, validated in Turkish, scores depression-related items as 1 and non-depression items as 0, with five items reverse-scored (items 1, 5, 7, 11, 13). Scores range from 0 to 15, with higher scores indicating greater depressive symptoms. The cutoff point is 5. The scale has high internal consistency, with a Cronbach's alpha of 0.92.

10 minutes
Occupational Self Assessment (OSA) Scale:
Time Frame: 5 minutes
The Occupational Self Assessment (OSA) Version 2.2 was used to evaluate individuals' occupational competence. Participants rate how well they perform 21 activities on a scale from 1 (I have a lot of difficulty doing this) to 4 (I do this extremely well) and the importance of these activities from 1 (Not important to me) to 4 (Extremely important to me). After answering the competence (Step 1) and value (Step 2) questions, participants select the areas they most want to change (Step 3) (27,28).
5 minutes

Collaborators and Investigators

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

Sponsor

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)

January 1, 2025

Primary Completion (Actual)

August 15, 2025

Study Completion (Actual)

September 15, 2025

Study Registration Dates

First Submitted

November 18, 2025

First Submitted That Met QC Criteria

November 18, 2025

First Posted (Actual)

November 25, 2025

Study Record Updates

Last Update Posted (Actual)

November 25, 2025

Last Update Submitted That Met QC Criteria

November 18, 2025

Last Verified

November 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • Pamukkale U

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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