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Indian J Endocrinol Metab. 2014 Jul;18(4):496-501. doi: 10.4103/2230-8210.137494.

Metabolic syndrome: Performance of five different diagnostic criterias.

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1
Departments of Medicine, University of Benin Teaching Hospital, Benin City and Federal Medical Centre, Umuahia, Abia State, Nigeria.

Abstract

BACKGROUND:

The aim of this study is to describe the metabolic syndrome (MS) and to evaluate five diagnostic criteria of the MS with respect to their sensitivity and specificity in patients with type 2 diabetes mellitus (T2DM).

MATERIALS AND METHODS:

It is a cross-sectional case control study of T2DM patients and their first degree relatives (FDRs) recruited using convenience sampling and data collected through questionnaire administered technique. Variables of interest included anthropometric indices, blood pressure, serum lipid profile, fasting blood sugar (FBS), proteinuria, and microalbuminuria. The Chi-square test was used for comparison of proportions. A P value of less than 0.05 was taken as statistically significant. Kappa statistic was used to test the degree of agreement between the diagnostic criteria.

RESULTS:

The World Health Organization (WHO), International Diabetes Federation (IDF), revised National Cholesterol Education Program (NCEP-R), NCEP Adult Treatment Panel (ATP)-III, and American Association of Clinical Endocrinologists (AACE) criteria reported a prevalence of 87.1, 64.5, 61.3, 55.6, and 22.6%, respectively in persons with T2DM. Using the WHO criteria as a reference or gold standard, the sensitivity of the IDF, NCEP-R, NCEP ATP-III, and AACE criteria among persons with T2DM were 71.3, 67.6, 61.1, and 25.9% respectively. Using the WHO criteria as a reference or gold standard, the specificity of the IDF, NCEP-R, NCEP ATP-III, and AACE criteria among persons with T2DM were 81.3, 81.3, 81.3, and 100%, respectively. Using the WHO criteria as a reference or gold standard, the level of agreement of the IDF, NCEP-R, NCEP ATP-III, and AACE criteria with the WHO criteria among persons with T2DM (as estimated by the kappa statistics) were 0.30, 0.26, 0.21, and 0.08 respectively.

CONCLUSION:

THE LEVEL OF AGREEMENT APPEARS TO BE GENERALLY POOR, THOUGH THE IDF CRITERIA SHOWED A FAIR LEVEL OF AGREEMENT WITH THE WHO CRITERIA: Therefore the IDF criteria is recommended for screening of the MS in persons with T2DM because of its ease of application and its level of agreement with the WHO criteria being the best compared to the other three criteria.

KEYWORDS:

Criteria; metabolic syndrome; performance; sensitivity; specificity

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