Ethnic differences in infectious burden and the association with metabolic risk factors for cardiovascular disease: a cross-sectional analysis
- PMID: 29471811
- PMCID: PMC5824549
- DOI: 10.1186/s12889-018-5162-x
Ethnic differences in infectious burden and the association with metabolic risk factors for cardiovascular disease: a cross-sectional analysis
Abstract
Background: The burden of metabolic risk factors for cardiovascular disease (CVD), such as type 2 diabetes, elevated cholesterol and hypertension, is unequally distributed across ethnic groups. Recent findings suggest an association of infectious burden (IB) and metabolic risk factors, but data from ethnic groups are scarce. Therefore, we investigated ethnic differences in IB and its association with metabolic risk factors.
Methods: We included 440 Dutch, 320 Turkish and 272 Moroccan participants, 18-70 years, of the 2004 general health survey in Amsterdam, the Netherlands. IB was defined by seropositivity to the sum of 6 infections: Herpes Simplex Virus 1 and 2; Hepatitis A, B and C; and Helicobacter pylori. Associations between IB categories 4-6 (high), 3 (intermediate) and 0-2 (low) infections and metabolic risk factors were assessed by logistic regression. Finally, we determined the contribution of IB to the association between ethnicity and the metabolic risk factors by comparing adjusted logistic regression models with and without IB categories.
Results: A high IB was more frequently observed among the Turkish and Moroccans than among the Dutch. After adjustment for age, sex, ethnicity, educational level, physical activity and body mass index, high IB was associated with type 2 diabetes (odds ratio high vs low IB (OR) =2.14, 95%-confidence interval (CI) 1.05-4.36). The association was weaker and not statistically significant, for elevated cholesterol (OR = 1.39, 95%-CI 0.82-2.34) and hypertension (OR = 1.49, 95%-CI 0.88-2.51). IB attenuated ethnic differences particularly for type 2 diabetes.
Conclusions: Our study showed that Turkish and Moroccan adults in Amsterdam have a higher IB than Dutch adults, which was associated with the differences in type 2 diabetes. Due to the cross-sectional nature of the study, we cannot draw a conclusions with regards to the time-sequence of cause and effect. Nevertheless, the findings ask for further research into the nature of association of IB with metabolic risk factors in a longitudinal setting.
Keywords: Diabetes; Ethnicity; Hypercholesterolemia; Hypertension; Infections; Infectious burden.
Conflict of interest statement
Ethics approval and consent to participate
The study was approved by the Institutional Review Board of the Academic Medical Center in Amsterdam, and performed performed in accordance with the Declaration of Helsinki. All participants provided written informed consent.
Consent for publication
Not applicable.
Competing interests
The authors declare that they have no competing interests.
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References
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- Cardiovascular diseases (CVDs) [Internet]. Reviewed June 2016. 2016 [cited 10 Mar 2015]. Available from: http://www.who.int/mediacentre/factsheets/fs317/en/.
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