Metabolic SyndromeNCT06976970
Diet Quality And Metabolic Syndrome In Adult Individuals: Evaluation Of Turkey Nutrition And Health Survey 2017
An observational study of Metabolic Syndrome, run by Elif Akbas at 1 site in Turkey (Türkiye).
Trial summary
This study investigates how the quality of a person's diet may be related to metabolic syndrome, which includes health issues such as high blood pressure, high blood sugar, and abdominal obesity. The research uses existing data from the 2017 Turkey Nutrition and Health Survey, focusing on adults aged 19 and over. Read more about this study
- Who is it for?
- Ages 19 years and older
- Conditions the study is for
- Metabolic Syndrome
- How many people
- 4,915 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Nov 2024to Jun 2025
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 19 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: The study population consists of adults aged 19 years and older who participated in the 2017 Turkey Nutrition and Health Survey (TNHS), conducted by the Turkish Ministry of Health. This secondary data analysis includes participants with complete dietary, demographic, anthropometric, and biochemical data. Exclusion criteria were: pregnant or lactating women, individuals with cancer, psychiatric or neurological disorders, those on specific therapeutic diets, individuals with missing key variables, and those with implausible energy intake levels (<800 or >4000 kcal/day for men, <500 or >3500 kcal/day for women).
Who may be able to join
- 19 years and older
- Participated in the 2017 Turkey Nutrition and Health Survey (TNHS)
Who cannot join
- Pregnant or lactating women, individuals with cancer, psychiatric or neurological disorders, those on specific therapeutic diets, individuals with missing key variables, and those with implausible energy intake levels (<800 or >4000 kcal/day for men, <500 or >3500 kcal/day for women).
Trial locations and contacts
1 site in 1 country.
About this study
This study investigates how the quality of a person's diet may be related to metabolic syndrome, which includes health issues such as high blood pressure, high blood sugar, and abdominal obesity. The research uses existing data from the 2017 Turkey Nutrition and Health Survey, focusing on adults aged 19 and over. The study does not involve any medical treatments or new data collection. It aims to support public health efforts by identifying links between eating patterns and metabolic health in the Turkish population.
Read the detailed description
This study is a secondary analysis of the 2017 Turkey Nutrition and Health Survey (TNHS), which was conducted by the Ministry of Health to assess the health and nutritional status of the Turkish population. The objective of this cross-sectional observational study is to evaluate the relationship between diet quality and the presence of metabolic syndrome (MetS) among Turkish adults aged 19 years and older.
Diet quality will be assessed using several validated dietary indices, including the Healthy Eating Index-2015 (HEI-2015), the Dietary Inflammatory Index (DII), the modified Mediterranean Diet Score (MDS), and the DASH (Dietary Approaches to Stop Hypertension) score. These indices provide a comprehensive evaluation of overall dietary patterns and their potential impact on metabolic health.
Metabolic syndrome will be defined based on the Joint Interim Statement (2009) criteria. Participants will be classified as having metabolic syndrome if at least three of the following five components are present: abdominal obesity, elevated blood pressure or receiving antihypertensive treatment, reduced HDL cholesterol levels or receiving treatment for dyslipidemia, elevated triglyceride levels or receiving lipid-lowering therapy, and elevated fasting blood glucose or receiving treatment for hyperglycemia.
Statistical analysis will include descriptive statistics, t-tests or Mann-Whitney U tests for comparisons between MetS and non-MetS groups, and multivariate logistic regression analyses to determine the associations between dietary indices and the likelihood of having MetS, adjusting for relevant sociodemographic and lifestyle covariates.
Statistical analyses were conducted using SPSS version 22.0. Descriptive statistics included frequencies and percentages for categorical variables and means with standard deviations or medians with ranges for continuous variables, depending on the distribution. Normality was assessed using the Shapiro-Wilk test. Group comparisons were performed using the Mann-Whitney U test or Kruskal-Wallis test for non-normally distributed variables and the Chi-square test for categorical variables. Correlations between continuous variables were evaluated using Spearman's rank correlation coefficient. Binary logistic regression analysis was used to identify factors associated with the presence of metabolic syndrome. A p-value of <0.05 was considered statistically significant.
This study is expected to contribute to the national evidence base on dietary patterns and metabolic health and to inform public health strategies aiming to reduce the burden of non-communicable diseases in Turkiye.
- Conditions
- Metabolic Syndrome
- Keywords
- Metabolic Syndrome, Diet Quality, Healthy Eating Index (HEI-2015), Dietary Inflammatory Index (DII), Mediterranean Diet Score (mMDS), DASH Diet
- Medical subject headings
- Metabolic Syndrome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Metabolic Syndrome group | Not described | |
| Non-Metabolic Syndrome group | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Metabolic Syndrome (MetS)
The primary outcome is the presence or absence of metabolic syndrome, defined according to the Joint Interim Statement criteria (2009). Participants are classified as having MetS if they meet at least three of the following five components: abdominal obesity, elevated blood pressure, elevated fasting glucose, elevated triglycerides, and reduced HDL cholesterol.
Measured: Day 1
HEI-2015 Score
Diet quality will be assessed using the Healthy Eating Index-2015 (HEI-2015).
Measured: Day 1
Dietary Inflammatory Index (DII)
Diet quality will be assessed using the Dietary Inflammatory Index (DII).
Measured: Day 1
Mediterranean Diet Score (MDS)
Diet quality will be assessed using the Mediterranean Diet Score (MDS).
Measured: Day 1
DASH Score (Dietary Approaches to Stop Hypertension)
Diet quality will be assessed using the DASH (Dietary Approaches to Stop Hypertension) score.
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 May 2025
- Study start1 Nov 2024
- Primary completion1 Apr 2025
- Study completionJun 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Metabolic SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Retrospective
- Enrolment
- 4,915 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Elif Akbas
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Elif Akbas, Marmara University
- Investigators
- Elif Akbas, Research Assistant, Principal investigator, Marmara UniversityYasemin Ertas Ozturk, Assistant Professor, Principal investigator, Ondokuz Mayıs University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06976970
- Sponsor's protocol ID
- OMÜ KAEK 2024/120
- Status last verified
- Apr 2025
- First submitted
- 22 Apr 2025
- Last updated
- 16 May 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 16 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Diet Quality And Metabolic Syndrome In Adult Individuals: Evaluation Of Turkey Nutrition And Health Survey 2017
- ClinicalTrials.gov ID
- NCT06976970
- Acronym / sponsor ID
- OMÜ KAEK 2024/120
- Conditions
- Metabolic Syndrome
- Keywords
- Metabolic Syndrome, Diet Quality, Healthy Eating Index (HEI-2015), Dietary Inflammatory Index (DII), Mediterranean Diet Score (mMDS), DASH Diet
- Study type
- Observational
- Recruitment status
- Active, not recruiting
- Enrolment
- 4,915 participants (estimated)
- Lead sponsor
- Elif AkbasUniversity, hospital or other
- Study start
- 1 Nov 2024 (actual)
- Primary completion
- 1 Apr 2025 (actual)
- Study completion
- Jun 2025 (estimated)
- First posted
- 16 May 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study investigates how the quality of a person's diet may be related to metabolic syndrome, which includes health issues such as high blood pressure, high blood sugar, and abdominal obesity. The research uses existing data from the 2017 Turkey Nutrition and Health Survey, focusing on adults aged 19 and over. The study does not involve any medical treatments or new data collection. It aims to support public health efforts by identifying links between eating patterns and metabolic health in the Turkish population.
Detailed description
This study is a secondary analysis of the 2017 Turkey Nutrition and Health Survey (TNHS), which was conducted by the Ministry of Health to assess the health and nutritional status of the Turkish population. The objective of this cross-sectional observational study is to evaluate the relationship between diet quality and the presence of metabolic syndrome (MetS) among Turkish adults aged 19 years and older.
Diet quality will be assessed using several validated dietary indices, including the Healthy Eating Index-2015 (HEI-2015), the Dietary Inflammatory Index (DII), the modified Mediterranean Diet Score (MDS), and the DASH (Dietary Approaches to Stop Hypertension) score. These indices provide a comprehensive evaluation of overall dietary patterns and their potential impact on metabolic health.
Metabolic syndrome will be defined based on the Joint Interim Statement (2009) criteria. Participants will be classified as having metabolic syndrome if at least three of the following five components are present: abdominal obesity, elevated blood pressure or receiving antihypertensive treatment, reduced HDL cholesterol levels or receiving treatment for dyslipidemia, elevated triglyceride levels or receiving lipid-lowering therapy, and elevated fasting blood glucose or receiving treatment for hyperglycemia.
Statistical analysis will include descriptive statistics, t-tests or Mann-Whitney U tests for comparisons between MetS and non-MetS groups, and multivariate logistic regression analyses to determine the associations between dietary indices and the likelihood of having MetS, adjusting for relevant sociodemographic and lifestyle covariates.
Statistical analyses were conducted using SPSS version 22.0. Descriptive statistics included frequencies and percentages for categorical variables and means with standard deviations or medians with ranges for continuous variables, depending on the distribution. Normality was assessed using the Shapiro-Wilk test. Group comparisons were performed using the Mann-Whitney U test or Kruskal-Wallis test for non-normally distributed variables and the Chi-square test for categorical variables. Correlations between continuous variables were evaluated using Spearman's rank correlation coefficient. Binary logistic regression analysis was used to identify factors associated with the presence of metabolic syndrome. A p-value of <0.05 was considered statistically significant.
This study is expected to contribute to the national evidence base on dietary patterns and metabolic health and to inform public health strategies aiming to reduce the burden of non-communicable diseases in Turkiye.
Study design
- Observational model
- Other
- Time perspective
- Retrospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Metabolic Syndrome group | – | – |
| Non-Metabolic Syndrome group | – | – |
Who may qualify
- Ages
- 19 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The study population consists of adults aged 19 years and older who participated in the 2017 Turkey Nutrition and Health Survey (TNHS), conducted by the Turkish Ministry of Health. This secondary data analysis includes participants with complete dietary, demographic, anthropometric, and biochemical data. Exclusion criteria were: pregnant or lactating women, individuals with cancer, psychiatric or neurological disorders, those on specific therapeutic diets, individuals with missing key variables, and those with implausible energy intake levels (<800 or >4000 kcal/day for men, <500 or >3500 kcal/day for women).
Key inclusion criteria (2 listed)
- 19 years and older
- Participated in the 2017 Turkey Nutrition and Health Survey (TNHS)
Key exclusion criteria (1 listed)
- Pregnant or lactating women, individuals with cancer, psychiatric or neurological disorders, those on specific therapeutic diets, individuals with missing key variables, and those with implausible energy intake levels (<800 or >4000 kcal/day for men, <500 or >3500 kcal/day for women).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Metabolic Syndrome (MetS)
Time frame: Day 1
The primary outcome is the presence or absence of metabolic syndrome, defined according to the Joint Interim Statement criteria (2009). Participants are classified as having MetS if they meet at least three of the following five components: abdominal obesity, elevated blood pressure, elevated fasting glucose, elevated triglycerides, and reduced HDL cholesterol.
HEI-2015 Score
Time frame: Day 1
Diet quality will be assessed using the Healthy Eating Index-2015 (HEI-2015).
Dietary Inflammatory Index (DII)
Time frame: Day 1
Diet quality will be assessed using the Dietary Inflammatory Index (DII).
Mediterranean Diet Score (MDS)
Time frame: Day 1
Diet quality will be assessed using the Mediterranean Diet Score (MDS).
DASH Score (Dietary Approaches to Stop Hypertension)
Time frame: Day 1
Diet quality will be assessed using the DASH (Dietary Approaches to Stop Hypertension) score.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 May 2025.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Elif Akbas, Research Assistant principal investigator
Marmara University
Yasemin Ertas Ozturk, Assistant Professor principal investigator
Ondokuz Mayıs University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Metabolic Syndrome, run by Elif Akbas at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 16 May 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Metabolic Syndrome (MetS) (time frame: Day 1). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 May 2025.