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ISSN: 2155-6156

Journal of Diabetes & Metabolism
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Research Article

Prevalence of Diabetes Mellitus and Impaired Glucose Tolerance in Luanda - Angola

Antonio Dias Evaristo-Neto, Maria Cristina Foss-Freitas and Milton Cesar Foss*

School of Medicine of Ribeirão Preto-USP, Brazil

*Corresponding Author:
Milton Cesar Foss
Professor of Medicine
School of Medicine of Ribeirão Preto-USP
Medicine, Av. Bandeirantes 3900, Ribeirão Preto
São Paulo 14049-900, Brazil
Tel: +55(16)36022467
Fax: +55(16)36336695
E-mail: [email protected]

Received date July 10, 2012; Accepted date August 04, 2012; Published date August 09, 2012

Citation: Evaristo-Neto AD, Foss-Freitas MC, Foss MC (2012) Prevalence of Diabetes Mellitus and Impaired Glucose Tolerance in Luanda - Angola. J Diabetes Metab 3:209. doi:10.4172/2155-6156.1000209

Copyright: © 2012 Evaristo-Neto AD, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited


Aim: To determine the prevalence of diabetes mellitus (DM) and impaired glucose tolerance (IGT) in Luanda, an urban community of Angola-Africa.

Methods: A random sample of 709 subjects aged 30 to 69 years (52% women) was selected from Ingombotamunicipality. This cross-sectional home survey was conducted from March 2009 to April 2011, using a sampling design of stage conglomerates. A two-stage survey was carried out. First, clinical and anthropometric data were obtained and fasting capillary glucose level was determined. The cut-off point was 5.55 mmol/l. Subjects who screened positive (fasting capillary glucose ≥ 5.55 mmol/l and <11.1 mmol/l) and each sixth consecutive subject who screened negative (fasting capillary glucose <5.55 mmol/l) were submitted to the second phase of survey, consisting of the 75g oral glucose tolerance test (75 g OGTT). Data was analyzed using SAS statistical software.

Results: The prevalence rates of diabetes mellitus and IGT were 7.1% and 12.9%, respectively. The age group with the highest frequency of diabetes was 60 to 69 years (33%) followed by the age group 40 to 49 (30%). The frequency of impaired glycemic homeostasis increased with aging both in men and women. Overweight and obesity were usual findings in the majority of subjects with diabetes (62%) and subjects with impaired glucose tolerance (61.9%).

Conclusions: The prevalence of diabetes mellitus was classified within an intermediary range (7.1%) and the prevalence of impaired glucose tolerance is within an high range, suggesting a future increase in the frequency of diabetes in this population.


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