Association Between Mortality and Diabetes in Elderly Koreans: the South-West Seoul (SWS) Study

November 6, 2013 updated by: K. M. Choi, Korea University
Diabetes mellitus is known to increase the risk of premature death in the general population. In this study, the investigators examine the impact of body mass index (BMI) levels, waist circumference, and presence/absence of diabetes on all-cause and cardiovascular mortality in elderly Koreans.

Study Overview

Status

Completed

Conditions

Detailed Description

The investigators analyze follow-up data from the South-West Seoul (SWS) Study, a prospective observational cohort study of an elderly Korean population residing in Seoul, the metropolitan capital city of Korea.

Briefly, the study population was selected from four urban districts (Guro, Yangcheon, Gwanak and Gangseo) located in the south-west area of Seoul. A total of 1737 apparently healthy individuals (between 60 and 92 years of age) eventually participated in this survey starting in 1999. A follow-up examination was performed in 2002, and an additional 873 subjects who had not participated in the first examination were newly recruited.

After a median follow-up of 10 years, each subject's vital status or cause of death as of 31 December 2011 was determined after linking these cohort data with death certificate data from the Korean National Statistical Office. Terminology and codes from the International Classification of Disease, Tenth Revision (ICD-10), were used to classify the underlying cause of death due to cardiovascular disease (ICD-10 codes I00-I79), cancer (ICD-10 codes C00-C97) and others.

Study Type

Observational

Enrollment (Actual)

2263

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

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

60 years to 92 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Study subjects in South-West Seoul (SWS) study, a prospective observational cohort study of an elderly Korean population residing in Seoul, the metropolitan capital city of Korea.

Description

Inclusion Criteria:

  • Apparently healthy individuals
  • Over the age of 60 years

Exclusion Criteria:

  • Those with a mismatched identification number
  • Missing data regarding BMI, waist circumference, and presence of diabetes

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: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
All-cause and cardiovascular mortality in elderly Korean men and women according to BMI, waist circumference, and presence of diabetes
Time Frame: A median follow-up of 10 years
A median follow-up of 10 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Survival probability among study populations
Time Frame: A median follow-up of 10 years
A median follow-up of 10 years

Collaborators and Investigators

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

Sponsor

Korea University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

August 1, 1999

Primary Completion (Actual)

December 1, 2002

Study Completion (Actual)

December 1, 2011

Study Registration Dates

First Submitted

October 30, 2013

First Submitted That Met QC Criteria

October 30, 2013

First Posted (Estimate)

November 6, 2013

Study Record Updates

Last Update Posted (Estimate)

November 7, 2013

Last Update Submitted That Met QC Criteria

November 6, 2013

Last Verified

November 1, 2013

More Information

Terms related to this study

Other Study ID Numbers

  • SWS(mortality, DM)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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