Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study

<p>Abstract</p> <p>Background</p> <p>Previous studies reported high C-reactive protein (CRP) levels in Indigenous Australians, which may contribute to their high risk of cardiovascular disease. We compared CRP levels in Indigenous Australians and the general population,...

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Main Authors: Dunbar Terry, Boyle Jacqueline, Cunningham Joan, Maple-Brown Louise, Hodge Allison M, Weeramanthri Tarun, Shaw Jonathan, O'Dea Kerin
Format: Article
Language:English
Published: BMC 2010-11-01
Series:BMC Public Health
Online Access:http://www.biomedcentral.com/1471-2458/10/700
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author Dunbar Terry
Boyle Jacqueline
Cunningham Joan
Maple-Brown Louise
Hodge Allison M
Weeramanthri Tarun
Shaw Jonathan
O'Dea Kerin
author_facet Dunbar Terry
Boyle Jacqueline
Cunningham Joan
Maple-Brown Louise
Hodge Allison M
Weeramanthri Tarun
Shaw Jonathan
O'Dea Kerin
author_sort Dunbar Terry
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Previous studies reported high C-reactive protein (CRP) levels in Indigenous Australians, which may contribute to their high risk of cardiovascular disease. We compared CRP levels in Indigenous Australians and the general population, accounting for obesity and other risk factors.</p> <p>Methods</p> <p>Cross-sectional study of CRP and risk factors (weight, height, waist and hip circumferences, blood pressure, lipids, blood glucose, and smoking status) in population-based samples from the Diabetes and Related conditions in Urban Indigenous people in the Darwin region (DRUID) study, and the Australian Diabetes, Obesity and Lifestyle study (AusDiab) follow-up.</p> <p>Results</p> <p>CRP concentrations were higher in women than men and in DRUID than AusDiab. After multivariate adjustment, including waist circumference, the odds of high CRP (>3.0 mg/L) in DRUID relative to AusDiab were no longer statistically significant, but elevated CRP was still more likely in women than men. After adjusting for BMI (instead of waist circumference) the odds for elevated CRP in DRUID participants were still higher relative to AusDiab participants among women, but not men. Lower HDL cholesterol, impaired glucose tolerance (IGT), and higher diastolic blood pressure were associated with having a high CRP in both men and women, while current smoking was associated with high CRP in men but not women.</p> <p>Conclusions</p> <p>High concentrations of CRP in Indigenous participants were largely explained by other risk factors, in particular abdominal obesity. Irrespective of its independence as a risk factor, or its aetiological association with coronary heart disease (CHD), the high CRP levels in urban Indigenous women are likely to reflect increased vascular and metabolic risk. The significance of elevated CRP in Indigenous Australians should be investigated in future longitudinal studies.</p>
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spelling doaj.art-f63c43306f9147658cea590897e4b2c12022-12-21T23:32:06ZengBMCBMC Public Health1471-24582010-11-0110170010.1186/1471-2458-10-700Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional studyDunbar TerryBoyle JacquelineCunningham JoanMaple-Brown LouiseHodge Allison MWeeramanthri TarunShaw JonathanO'Dea Kerin<p>Abstract</p> <p>Background</p> <p>Previous studies reported high C-reactive protein (CRP) levels in Indigenous Australians, which may contribute to their high risk of cardiovascular disease. We compared CRP levels in Indigenous Australians and the general population, accounting for obesity and other risk factors.</p> <p>Methods</p> <p>Cross-sectional study of CRP and risk factors (weight, height, waist and hip circumferences, blood pressure, lipids, blood glucose, and smoking status) in population-based samples from the Diabetes and Related conditions in Urban Indigenous people in the Darwin region (DRUID) study, and the Australian Diabetes, Obesity and Lifestyle study (AusDiab) follow-up.</p> <p>Results</p> <p>CRP concentrations were higher in women than men and in DRUID than AusDiab. After multivariate adjustment, including waist circumference, the odds of high CRP (>3.0 mg/L) in DRUID relative to AusDiab were no longer statistically significant, but elevated CRP was still more likely in women than men. After adjusting for BMI (instead of waist circumference) the odds for elevated CRP in DRUID participants were still higher relative to AusDiab participants among women, but not men. Lower HDL cholesterol, impaired glucose tolerance (IGT), and higher diastolic blood pressure were associated with having a high CRP in both men and women, while current smoking was associated with high CRP in men but not women.</p> <p>Conclusions</p> <p>High concentrations of CRP in Indigenous participants were largely explained by other risk factors, in particular abdominal obesity. Irrespective of its independence as a risk factor, or its aetiological association with coronary heart disease (CHD), the high CRP levels in urban Indigenous women are likely to reflect increased vascular and metabolic risk. The significance of elevated CRP in Indigenous Australians should be investigated in future longitudinal studies.</p>http://www.biomedcentral.com/1471-2458/10/700
spellingShingle Dunbar Terry
Boyle Jacqueline
Cunningham Joan
Maple-Brown Louise
Hodge Allison M
Weeramanthri Tarun
Shaw Jonathan
O'Dea Kerin
Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study
BMC Public Health
title Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study
title_full Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study
title_fullStr Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study
title_full_unstemmed Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study
title_short Abdominal obesity and other risk factors largely explain the high CRP in Indigenous Australians relative to the general population, but not gender differences: a cross-sectional study
title_sort abdominal obesity and other risk factors largely explain the high crp in indigenous australians relative to the general population but not gender differences a cross sectional study
url http://www.biomedcentral.com/1471-2458/10/700
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