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Open Access Research article

Coincidence of diabetes mellitus and hypertension in a semi-urban Cameroonian population: a cross-sectional study

Jean-Claude Katte1, Anastase Dzudie23, Eugene Sobngwi4, Eta N Mbong5, Gerard Tama Fetse1, Charles Kouam Kouam1 and Andre-Pascal Kengne36*

Author Affiliations

1 Regional Hospital of Bafoussam, Ministry of Public Health, Bafoussam, Cameroon

2 Douala General Hospital and Faculty of Health Sciences, University of Buea, Buea, Cameroon

3 Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

4 Department of Internal Medicine and Subspecialties, Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaounde, Cameroon

5 Ministry of Public Health, Yaounde, Cameroon

6 Non-Communicable Diseases Research Unit, South African Medical Research Council, PO Box 19070, Tygerberg, Cape Town 7505, South Africa

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BMC Public Health 2014, 14:696  doi:10.1186/1471-2458-14-696

Published: 8 July 2014

Abstract

Background

Hypertension and diabetes mellitus are increasingly common in population within Africa. We determined the rate of coincident diabetes and hypertension and assessed the levels of co-awareness, treatment and control in a semi-urban population in Cameroon.

Methods

A total of 1702 adults (967 women) self-selected from the community were consecutively recruited in Bafoussam (West region of Cameroon) during November 2012. Existing diabetes and hypertension and treatments were investigated and blood pressure and fasting blood glucose measured. Multinomial logistic regressions models were used to investigate the determinants of prevalent diabetes and hypertension.

Results

Age-standardized prevalence rates (95% confidence intervals) men vs. women were 40.4% (34.7 to 46.1) and 23.8% (20.4 to 27.2) for hypertension alone; 3.3% (1.5 to 5.1) and 5.6% (3.5 to 7.7) for diabetes alone; and 3.9% (2.6 to 5.2) and 5.0% (3.5 to 6.5) for hypertension and diabetes. The age-standardized awareness, treatment and control rates for hypertension alone were 6.5%, 86.4% and 37.2% for men, and 24.3%, 52.1% and 51.6% in women. Equivalent figures for diabetes alone were 35.4%, 65.6% and 23.1% in men and 26.4%, 75.5% and 33.7% in women; and those for hypertension and diabetes were 86.6%, 3.3% and 0% in men, and 74.7%, 22.6% and 0% in women. Sex, age and adiposity were the main determinants of the three conditions.

Conclusions

Coincident diabetes and hypertension is as high as diabetes alone in this population, driven by sex, age and adiposity. Awareness, treatment and control remain unacceptably low.

Keywords:
Hypertension; Diabetes mellitus; Coincidence; Prevalence; Sub-Saharan Africa; Cameroon