The Sex Specific Waist Circumference Cut Off Points to Predict Overweight or Obesity

NCT ID: NCT01914640

Last Updated: 2013-08-02

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 4310 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2003-03-31
• Study Completion Date: 2005-09-30

Brief Summary

The waist circumference (WC) cut off levels of the Caucasian people may not represent the characteristics of different ethnic groups. The investigators aimed to determine sex specific WC cut off points to predict obesity, metabolic syndrome and increased cardiovascular risk in Turkish adults.

Detailed Description

Waist circumference (WC) is an easy and reliable measure of visceral adipose tissue and a simple index of cardiovascular risk. The World Health Organization (WHO) reported sex specific WC cut off values for the Caucasian people, named as action levels 1 and 2, to define the overweight or obese people. These cut off values, originally established in a Dutch population, were later adopted by several medical organizations in order to define Metabolic Syndrome. However, these cut off levels may not necessarily represent the characteristics of the other populations. Therefore it is recommended that the sex specific WC cut off points should be established for different ethnic groups.

The investigators aimed to investigate whether the suggested sex specific WC cut off points for the Caucasian adults are appropriate for the Turkish adult population. The secondary aim of the study is to search for better WC cut off points to predict obesity, metabolic syndrome and increased cardiovascular risk in Turkish adult men and women.

Conditions

The Focus of Study is to Determine the Waist Circumference Values to Predict Overweight or Obesity

Keywords

Waist circumference, Metabolic Syndrome, Cardiovascular risk

Study Design

• Observational Model Type: ECOLOGIC_OR_COMMUNITY
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

Healthy adults living in Turkey

The group was enrolled from the 24 provinces of the 7 regions of Turkey. At least 3 provinces were selected from each region by a random sampling method. The populations of these 7 regions were obtained from the records of the 2000 census. The study sample included males and non-pregnant females aged between 20 and 83 years. The populations of city centers, districts, and villages were classified by using the stratified sampling method and then were selected from the data collected from the household identification forms by random sampling. The geography of Turkey was classified into three groups according to altitude. Sea level was accepted as zero. 0-300 m was taken as coastal, 300-900 m as moderate

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• Adult Male or nonpregnant Female

Exclusion Criteria

Pregnant females, Subjects younger than 20 or older than 83

• Minimum Eligible Age: 20 Years
• Maximum Eligible Age: 85 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

TC Erciyes University

OTHER

Sponsor Role: lead

Responsible Party

Fahri Bayram

Professor in Medicine, Faculty of the Department of Endocrinology and Metbolism

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Fahri Bayram, MD. Prof.

Role: STUDY_DIRECTOR

Head of the Study Group of Hypertension, Lipid disorders and Obesity of Turkish Society of Endocrinology and Metabolism

References

Gundogan K, Bayram F, Gedik V, Kaya A, Karaman A, Demir O, Sabuncu T, Kocer D, Coskun R. Metabolic syndrome prevalence according to ATP III and IDF criteria and related factors in Turkish adults. Arch Med Sci. 2013 Apr 20;9(2):243-53. doi: 10.5114/aoms.2013.34560. Epub 2013 Apr 12.

Reference Type: BACKGROUND

PMID: 23671434 (View on PubMed)

Other Identifiers

TEMD/OBDLHT- 0001

Identifier Type: -

Identifier Source: org_study_id