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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
The metabolic syndrome and changing relationship between blood pressure and insulin with age, as observed in Aboriginal and Torres Strait Islander peoples
Diabetic Medicine, Volume 22, No. 11, Year 2005
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Description
Aims: To determine the prevalence of the metabolic syndrome (MS) among Aboriginal and Torres Strait Islander peoples. A further objective was to investigate the relationships between fasting insulin and blood pressure (BP) within these groups with increasing age. Methods: A cross-sectional population-based study included 369 Torres Strait Islanders (residing in Torres Strait and Far North Queensland), and 675 Aborigines from central Australia. Data necessary for classification of MS was collected, including fasting and 2-h glucose and insulin, urinary albumin and creatinine, anthropometric measurements, BP, serum lipids. Results: The ATPIII criteria classified 43% of Torres Strait Islanders and 44% of Aborigines with MS, whereas 32 and 28%, respectively, had the MS according to WHO criteria. Agreement between the two criteria was only modest (kappa coefficient from 0.28 to 0.57). Factor analyses indicated no cluster including both insulin and BP in either population. Significant correlations (P < 0.05) [adjusted for gender, body mass index (BMI) and waist circumference] were observed between BP and fasting insulin: a positive correlation for Torres Strait Islanders aged 15-29 years, and an inverse correlation for Aborigines aged 40 years and older. Conclusion: Torres Strait Islanders and Aborigines had very high prevalences of the MS. Specific population characteristics (high prevalences of central obesity, dyslipidaemia, renal disease) may make the WHO definition preferable to the ATPIII definition in these population groups. The poor agreement between criteria suggests a more precise definition of the metabolic syndrome that is applicable across populations is required. This study showed an inverse relationship with age for the correlation of BP and fasting insulin. © 2005 Diabetes UK.
Authors & Co-Authors
Schutte, Aletta E.
South Africa, Potchefstroom
North-west University
Australia, Darwin
Menzies School of Health Research
Shemesh, T.
Australia, Darwin
Menzies School of Health Research
Australia, Darwin
Charles Darwin University
Rowley, Kevin G.
Australia, Melbourne
University of Melbourne
Best, J. D.
Australia, Melbourne
University of Melbourne
McDermott, R.
Australia, Adelaide
University of South Australia
O'Dea, Kerin
Australia, Darwin
Menzies School of Health Research
Australia, Darwin
Charles Darwin University
Statistics
Citations: 30
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1111/j.1464-5491.2005.01747.x
ISSN:
07423071
Research Areas
Noncommunicable Diseases
Study Design
Cross Sectional Study