Carter Ashley N, Ralston Penny A, Young-Clark Iris, Ilich Jasminka Z
Department of Nutrition, Food and Exercise Sciences, Florida State University Tallahassee, Florida, USA.
Center on Better Health and Life for Underserved Populations, Florida State University Tallahassee, Florida, USA.
Am J Cardiovasc Dis. 2016 Sep 15;6(3):129-37. eCollection 2016.
African Americans have higher risk of developing type 2 diabetes and cardiovascular disease (CVD) compared to other racial groups. Modifiable and non-modifiable factors play a role in the development of both diseases. This study assessed diabetes indicators in relation to other CVD risk factors taking into account confounders, among African American adults. This was a cross-sectional study in mid-life and older African Americans (≥45 years) who were recruited from the local churches. Fasting blood was collected and serum analyzed for diabetes indicators, apolipoproteins, adipokines, and lipid profile. CVD risk scores were determined using the American Heart Association and Framingham Risk Score assessments. Homeostasis Model Assessments (HOMAs) were calculated using glucose and insulin concentrations. Confounding variables were assessed by questionnaires. Data were analyzed using SPSS software, version 21, and p<0.05 was deemed significant. Descriptive statistics was used to analyze continuous variables. Frequencies and percentages were used to examine categorical variables. T-tests compared different groups while Pearson correlations provided preliminary relationships and determined variables for multiple regression analyses. A total of n=79 participants were evaluated (69% women), 59.3±9.2 years, BMI=34.7±8.3 (mean ± SD). As expected, AA men had higher fasting blood glucose than women (123.6±54.9 mg/dL versus 99.0±21.8 mg/dL), and AA women had higher insulin (11.8±13.1 mg/dL versus 7.6±6.0 mg/dL). Our study confirmed that it is likely for AA men to have significantly lower adiponectin concentrations in comparison to AA women. Based on the CVD risk assessments, men had a significantly higher risk of developing CVD than women, which has been shown previously. Apolipoproteins, adipokines, and lipid profile also negatively influenced the cardiovascular health outcomes in men. Dietary intake, probably by influencing participants' weight/adiposity, contributed to the differences in cardiovascular outcomes between men and women. In conclusion, the findings of this study revealed that diabetes and serum glucose appeared to be the leading factors for high CVD risk, on the contrary to some other indicators reported in some studies, e.g. hypertension or dyslipidemia.
与其他种族群体相比,非裔美国人患2型糖尿病和心血管疾病(CVD)的风险更高。可改变和不可改变的因素在这两种疾病的发生中都起作用。本研究在考虑混杂因素的情况下,评估了非裔美国成年人中糖尿病指标与其他CVD危险因素的关系。这是一项针对从中年及老年非裔美国人(≥45岁)中招募的横断面研究,这些参与者来自当地教会。采集空腹血样并分析血清中的糖尿病指标、载脂蛋白、脂肪因子和血脂谱。使用美国心脏协会和弗雷明汉风险评分评估来确定CVD风险评分。使用葡萄糖和胰岛素浓度计算稳态模型评估(HOMAs)。通过问卷调查评估混杂变量。使用SPSS软件21版进行数据分析,p<0.05被视为具有统计学意义。描述性统计用于分析连续变量。频率和百分比用于检验分类变量。t检验比较不同组,而皮尔逊相关性提供初步关系并确定多元回归分析的变量。总共评估了n = 79名参与者(69%为女性),年龄59.3±9.2岁,BMI = 34.7±8.3(平均值±标准差)。正如预期的那样,非裔美国男性的空腹血糖高于女性(123.6±54.9毫克/分升对99.0±21.8毫克/分升),非裔美国女性的胰岛素水平更高(11.8±13.1毫克/分升对7.6±6.0毫克/分升)。我们的研究证实,与非裔美国女性相比,非裔美国男性的脂联素浓度可能显著更低。基于CVD风险评估,男性患CVD的风险显著高于女性,这一点此前已有研究表明。载脂蛋白、脂肪因子和血脂谱也对男性的心血管健康结果产生负面影响。饮食摄入可能通过影响参与者的体重/肥胖程度,导致了男性和女性心血管结果的差异。总之,本研究结果表明,糖尿病和血糖似乎是高CVD风险的主要因素,这与一些其他研究报告的指标(如高血压或血脂异常)相反。