Abstract 131: Racial Differences in Nocturnal Hypertension and Non-dipping Blood Pressure: The Coronary Artery Risk Development in Young Adults (CARDIA) Study

Hypertension ◽  
2017 ◽  
Vol 70 (suppl_1) ◽  
Author(s):  
Paul Muntner ◽  
John N Booth ◽  
Stephen J Thomas ◽  
Luqin Deng ◽  
Joseph E Schwartz ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Young Adults ◽  
Coronary Artery ◽  
Black Women ◽  
Black Men ◽  
White Women ◽  
White Men ◽  
Self Report ◽  
Nocturnal Hypertension ◽  
Multivariable Adjustment

Risk factors for nocturnal hypertension are more common among blacks compared with whites. We hypothesized nocturnal hypertension and nocturnal non-dipping BP are more common among blacks compared with whites. We analyzed data for 781 participants of the population-based Coronary Artery Risk Development in Young Adults (CARDIA) study who completed ambulatory blood pressure (BP) monitoring (ABPM) in 2015-2016. Awake and sleep periods were defined using actigraphy and self-report. Nocturnal hypertension was defined as mean sleep systolic BP (SBP)/diastolic BP (DBP) ≥ 120/70 mm Hg. Non-dipping SBP and DBP, separately, were defined as a decline in mean sleep BP, relative to mean awake BP < 10%. The mean age of participants was 54.7 years, 21.1% were white women, 38.5% were black women, 16.8% were white men and 23.6% were black men. The prevalence of nocturnal hypertension was 18.2% and 44.5% among white and black women, respectively, and 35.9% and 59.8% among white and black men, respectively. After multivariable adjustment, the prevalence of nocturnal hypertension was higher among black women, white men and black men, each compared with white women (Table). The prevalence of non-dipping SBP was 21.2% and 40.9% among white and black women, respectively, and 19.8% and 37.5% among white and black men, respectively. After multivariable adjustment, non-dipping SBP was more common among black women and black men compared with white women. There were no statistically significant differences in non-dipping DBP across race-gender after multivariable adjustment. Nocturnal hypertension and non-dipping SBP are more common among blacks compared with whites even after adjustment for mean BP.

Elevated Fibrinogen Predicts Atherosclerosis.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 3188-3188
Author(s):  
David Green ◽  
Nancy Foiles ◽  
Cheeling Chan ◽  
Pamela J. Schreiner ◽  
David Jacobs ◽  
...  
Keyword(s):  
Young Adults ◽  
Coronary Artery ◽  
Black Women ◽  
Black Men ◽  
White Women ◽  
Multivariable Analysis ◽  
White Men ◽  
Race And Gender ◽  
Hemostatic Factors ◽  
And Gender

Abstract Elevated levels of hemostatic factors are observed in patients with atherosclerosis, but whether they promote plaque formation or are a consequence of the disease is uncertain. To examine this issue, we used data from a large biracial cohort of young adults (Coronary Artery Risk Development in Young Adults [CARDIA]) followed up for 13 years, to examine the relationships of hemostatic factors - fibrinogen, factors VII and VIII, and von Willebrand factor (vWF) - with coronary artery calcium (CAC) and carotid intimal-medial thickness (IMT). Complete data were available on 1382 participants, whose mean age was 32 years at enrollment. The age, race, and gender-adjusted prevalence of CAC for increasing quartiles of fibrinogen levels was: 14.0%, 15.0%, 19.6%, and 28.4% (p <0.001 for trend). After further adjustment for BMI, smoking, systolic BP, and total cholesterol, the prevalence of CAC for increasing quartiles of fibrinogen was 15.5%, 16.0%, 19.0%, and 26.4% (p <0.001 for trend). Similar trends were observed for IMT (age, race, and gender-adjusted, p<0.001; multivariable adjusted, p=0.022). When race and gender subgroups were further analyzed, the prevalence of CAC was associated with fibrinogen levels in women and white men after age adjustment, and in women on multivariable analysis. IMT scores adjusted for age were associated with elevated fibrinogen levels in all except black men, and in black women after multivariable adjustment (p=0.003). While the prevalence of CAC was not associated with increasing quartiles of FVII, FVIII, or vWF, IMT scores were associated with elevated FVII on multivariable analysis in white women (p=0.006) and with vWF antigen in white men on age-adjusted (p=0.004) and multivariable analysis (p=0.013). There were no significant associations of hemostatic factors with either the prevalence of CAC or IMT in black men. Participants were categorized as to whether they had 0, 1, or more than 1 hemostatic factors in the highest quartile. After adjustment for age, race, and gender, hemostatic group classification was associated linearly with the prevalence of CAC (p<0.001 for trend) and IMT score (p=0.01 for trend). In conclusion, the main finding from this study is that elevated levels of fibrinogen in persons aged 25 to 37 are associated with the later appearance of subclinical markers of cardiovascular disease. These associations were observed in whites and black women, but not black men. We suggest that atherosclerosis became established during the 13 year observation period, and that increased fibrinogen may have been a contributing factor or a marker for disease development.

Abstract P257: The Association of Metabolic Risk and Physical Activity Trajectories: CARDIA

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Sarah M Camhi ◽  
Peter T Katzmarzyk ◽  
Stephanie Broyles ◽  
Timothy S Church ◽  
Arlene L Hankinson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adults ◽  
Black Women ◽  
Black Men ◽  
Repeated Measures ◽  
White Women ◽  
Smoking Status ◽  
White Men ◽  
Metabolic Risk ◽  
Linear Modeling

Purpose: To determine whether baseline metabolic risk in young adults is associated with physical activity (PA) trajectories over 20 years. Methods: The sample included young adults from the Coronary Artery Risk Development in Young Adults (CARDIA) study, baseline ages 18–30 years (n= 4161). PA was determined from self-reported questionnaire at baseline and at years 2,5,7,10,15 and 20 of follow-up. Baseline metabolic risk was calculated using age-adjusted principal components analysis (elevated=top 10% of first factor), within sex-by-race groups, from mean arterial pressure (1/3(SBP-DBP)+DBP), glucose, waist circumference, triglycerides, and high-density lipoprotein cholesterol. Repeated measures general linear modeling was used to generate PA trajectories over 20 years, separately in black men, white men, black women and white women, adjusting for age and smoking status. Time by metabolic risk interaction terms did not contribute significantly to any model for any sex-by-race group and were therefore not included in final models. Results: In black men, white men, and white women, PA (in exercise units) at baseline was significantly lower among those with elevated metabolic risk (elevated risk vs. normal risk: black men 473.0 ± 27.0 vs. 572.0 ± 22.7; white men: 498.0 ±20.6 vs. 568.7 ± 17.3; white women: 402.4 ± 17.0 vs. 481.1 ± 14.3), and these differences persisted over 20 years (black men: −98.9 ± 16.4, white men: −70.8 ± 12.5 , white women: −78.7 ± 10.2; all p<0.0001). There were no significant differences in PA by metabolic risk in black women (307.2 ± 15.5 vs. 317.4 ± 13.1, difference: −10.1 ± 9.3, p =0.27). Conclusion: Elevated metabolic risk is associated with lower levels of PA in early adulthood, and these differences persist over 20 years. Despite these lower levels at baseline, the PA trajectory declines at similar rates for those with and without elevated metabolic risk. Young adults with elevated metabolic risk are important to identify early, in order to prevent PA level gap which remains over 20 years between those with and without elevated metabolic risk.

Black-White Differences in Ischemic Stroke Risk Factor Burden in Young Adults

Stroke ◽  
2021 ◽  
Author(s):  
Elizabeth M. Aradine ◽  
Kathleen A. Ryan ◽  
Carolyn A. Cronin ◽  
Marcella A. Wozniak ◽  
John W. Cole ◽  
...  
Keyword(s):  
Young Adults ◽  
Ischemic Stroke ◽  
Black Women ◽  
Black Men ◽  
White Women ◽  
Population Attributable Risk ◽  
White Men ◽  
Attributable Risk ◽  
Black Patients ◽  
Population Attributable Risk Percent

Background and Purpose: Although the US Black population has a higher incidence of stroke compared with the US White population, few studies have addressed Black-White differences in the contribution of vascular risk factors to the population burden of ischemic stroke in young adults. Methods: A population-based case-control study of early-onset ischemic stroke, ages 15 to 49 years, was conducted in the Baltimore-Washington DC region between 1992 and 2007. Risk factor data was obtained by in-person interview in both cases and controls. The prevalence, odds ratio, and population-attributable risk percent (PAR%) of smoking, diabetes, and hypertension was determined among Black patients and White patients, stratified by sex. Results: The study included 1044 cases and 1099 controls. Of the cases, 47% were Black patients, 54% were men, and the mean (±SD) age was 41.0 (±6.8) years. For smoking, the population-attributable risk percent were White men 19.7%, White women 32.5%, Black men 10.1%, and Black women 23.8%. For diabetes, the population-attributable risk percent were White men 10.5%, White women 7.4%, Black men 17.2%, and Black women 13.4%. For hypertension, the population-attributable risk percent were White men 17.2%, White women 19.3%, Black men 45.8%, and Black women 26.4%. Conclusions: Modifiable vascular risk factors account for a large proportion of ischemic stroke in young adults. Cigarette smoking was the strongest contributor to stroke among White patients while hypertension was the strongest contributor to stroke among Black patients. These results support early primary prevention efforts focused on smoking cessation and hypertension detection and treatment.

scholarly journals Association of education with dietary intake among young adults in the bi-ethnic Coronary Artery Risk Development in Young Adults (CARDIA) cohort

2003 ◽  
Vol 6 (7) ◽  
pp. 689-695 ◽  
Author(s):  
SL Archer ◽  
JE Hilner ◽  
AR Dyer ◽  
KJ Greenlund ◽  
LA Colangelo ◽  
...  
Keyword(s):  
Young Adults ◽  
Coronary Artery ◽  
Black Women ◽  
Dietary Intake ◽  
White Women ◽  
Community Sample ◽  
Saturated Fat ◽  
White Men ◽  
Population Based ◽  
Health Campaigns

AbstractObjective:To examine associations of changes in dietary intake with education in young black and white men and women.Design:The Coronary Artery Risk Development in Young Adults (CARDIA) study, a multi-centre population-based prospective study. Dietary intake data at baseline and year 7 were obtained from an extensive nutritionist-administered diet history questionnaire with 700 items developed for CARDIA.Setting:Participants were recruited in 1985–1986 from four sites: Birmingham, Alabama; Chicago, Illinois; Minneapolis, Minnesota; and Oakland, California.Subjects:Participants were from a general community sample of 703 black men (BM), 1006 black women (BW), 963 white men (WM) and 1054 white women (WW) who were aged 18–30 years at baseline. Analyses here include data for baseline (1985–1986) and year 7 (1992–1993).Results:Most changes in dietary intake were observed among those with high education (≥ 12 years) at both examinations. There was a significant decrease in intake of energy from saturated fat and cholesterol and a significant increase in energy from starch for each race-gender group (P < 0.001). Regardless of education, taste was considered an important influence on food choice.Conclusion:The inverse relationship of education with changes in saturated fat and cholesterol intakes suggests that national public health campaigns may have a greater impact among those with more education.

Abstract 10: Metabolically Healthy Obesity Over 25 Years in the Coronary Artery Risk Development in Young Adults (CARDIA) Study: Race and Sex Differences

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Sarah M Camhi ◽  
Aviva Must ◽  
Philimon N Gona ◽  
Arlene Hankinson ◽  
Andrew Odegaard ◽  
...  
Keyword(s):  
Young Adults ◽  
Sex Differences ◽  
Black Women ◽  
Black Men ◽  
White Women ◽  
White Men ◽  
Time Points ◽  
Metabolically Healthy ◽  
Baseline Bmi

Background: Obesity is heterogeneous condition with phenotypic variation. Metabolically healthy obese (MHO) may represent an unstable phenotype which changes over time. MHO duration, or the length of time in MHO, is not well characterized. The purpose is to quantify MHO duration over 25 years and explore possible race/sex differences. Methods: Young adults (baseline ages 18-30 yrs) from CARDIA were included if they were non-obese at baseline, developed obesity (BMI ≥30kg/m 2 ) at any follow-up exam (yrs 7, 10, 15, 20 and 25), and had complete data for metabolic status, age, race and sex (n=702). MHO was defined as obese (BMI ≥30 kg/m 2 ) and having either 0 or 1 risk factor of the following: ≥SBP/DBP 130/85 mmHg; glucose ≥100 mg/dL; triglycerides (≥150 mg/dL); and HDL-C (men <40, women <50 mg/dL). Obese individuals with ≥2 risk factors were classified as metabolically unhealthy obese (MUO). MHO duration (yrs) and obesity duration (yrs) were estimated for subsequent time-points; and a duration sum was calculated for the follow-up period. For two time-points in which a person remained MHO and obese, a duration for that period was assigned. If they transitioned to MUO or non-obese, then the midpoint of the time period was estimated as MHO duration (yrs). MHO duration was also expressed as the percentage (%) of the total obesity duration. Multivariable adjusted ANCOVA was used to compare MHO duration (%) between race and sex groups (black men, white men, black women and white women), adjusting for baseline age, baseline BMI status (normal weight or overweight). Results: The eligible CARDIA sample was 55% black, 71% women and had a mean (± SD) baseline age of 25.0 ± 3.7 yrs. Duration of obesity was 12.3 ± 6.8 yrs, MHO duration (yrs) was 6.2 ± 5.4 yrs (range: 0 years to 19 yrs), and MHO duration (%) was 51.9 ± 34.8%. After adjusting for age and baseline BMI, MHO duration (%, mean ± SE) was significantly higher in women compared to men within race (black women n=292: 56.3 ± 2.0% vs. black men n=91: 43.3 ± 3.6%, p=0.001; white women n=206: 56.1 ± 2.4% vs. white men n=113: 39.7 ± 3.2%, p <0.0001). No significant differences were found between race groups within gender (black men vs. white men or black women vs. white women). Conclusion: MHO status is a transient phenotype accounting for only approximately half of obesity duration. Women have longer MHO duration compared to men, but differences by race were not apparent. Future research is needed to explore possible modifiable predictors and/or determinants of longer MHO duration in order to maintain a healthy cardiometabolic phenotype, even in the presence of obesity.

Abstract MP050: Race and Gender Group Specific Trends in Length of Stay for Acute Myocardial Infarction: The Atherosclerosis Risk in Communities (ARIC) study, 1987–2008

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Laura R Loehr ◽  
Xiaoxi Liu ◽  
C. Baggett ◽  
Cameron Guild ◽  
Erin D Michos ◽  
...  
Keyword(s):  
Black Women ◽  
Length Of Stay ◽  
Black Men ◽  
White Women ◽  
White Men ◽  
Quadratic Term ◽  
Race And Gender ◽  
Insurance Type ◽  
And Gender ◽  
Aric Study

Introduction: Since the 1980’s, length of stay (LOS) for acute MI (AMI) has declined in the US. However, little is known about trends in LOS for non-white racial groups and whether change in LOS is related to insurance type or hospital complications. Methods: We determined 22 year trends in LOS for nonfatal (definite or probable) AMI among black and white residents age 35–74 in 4 US communities (N=396,514 in 2008 population) under surveillance in the ARIC Study. Events were randomly sampled and independently validated using a standardized algorithm. All analyses accounted for sampling scheme. We excluded MI events which started after admission (n=1,677), events within 28 days for the same person (n=3,817), hospital transfers (n=571), and those with LOS=0 or LOS >66 (top 0.5% of distribution, N= 144) leaving 22,258 weighted events for analysis. The average annual change in log LOS was modeled using weighted linear regression with year as a quadratic term. All models adjusted for age and secondary models adjusted for insurance type (Medicare, Medicaid, private, or other), and complications during admission (cardiac arrest, cardiogenic shock, or heart failure). Results: The average age-adjusted LOS from 1987 to 2008 was reduced by 5 days in black men (9.5 to 4.5 days); 4.6 days in white women (9.4 to 4.8 days); 4 days in white men (8.3 to 4.3 days) and 3.6 days in black women (9.0 to 5.4 days). Between 1987 and 2008, the age-adjusted average annual percent change (with 95% CI) in LOS was largest for white men at −4.40 percent per year (−4.91, −3.89) followed by −3.89 percent (−4.52, −3.26) for white women, −3.72 percent (−4.46, −2.89) for black men, and −2.94 percent (−3.92, −1.96) for black women (see Figure). Adjustment for insurance type, and complications did not change the pattern by race and gender. Conclusions: Between 1987 and 2008, LOS for AMI declined significantly and similarly in men and women, blacks and whites. These changes appear independent of differences in insurance type and hospital complications among race-gender groups.

Abstract P387: Race and Sex Differences Exist in the Volumes of Visceral Adipose Tissue Associated With Prevalent Hypertension in Middle Age Adults

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Christina M Shay ◽  
Prasenjeet N Motghare ◽  
David R Jacobs ◽  
Cora E Lewis ◽  
J. Greg Terry ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Adipose Tissue ◽  
Black Women ◽  
White Women ◽  
Middle Age ◽  
White Men ◽  
True Positive ◽  
True Negative ◽  
Cut Points ◽  
Visceral Adipose

Background: Higher visceral adipose tissue (VAT) volume is associated with greater risk for hypertension (HTN). Although VAT volume and prevalence of HTN vary by sex and race, the differences in VAT volumes associated with identification of individuals with prevalent HTN across these groups is unclear. Objective: To determine VAT volume cut points that maximize true positive, true negative and optimal identification of prevalent HTN and to compare the cut points across sex and race groups. Methods: Data were examined from the Coronary Artery Risk Development in Young Adults (CARDIA) study, a multi-center longitudinal study of the development of cardiovascular risk in black and white men and women ages 18-30 years at baseline. In 2010-11, the Year 25 exam was performed (43-55 years) and VAT volume (cm3) was quantified by computed tomography based on two 5 mm contiguous slices at the level of the 4th-5th lumbar vertebra (n=3,153). HTN was defined as systolic blood pressure ≥140 mmHg, diastolic blood pressure ≥90 mmHg and/or anti-hypertension medication use. Receiver operating characteristic (ROC) curve analysis was used to identify VAT volume cut points associated with true positive, true negative and optimal identification of prevalent HTN. Results: Year 25 prevalence of HTN ranged from 18.2% (white women) to 49.4% (black women); mean VAT volume ranged from 113.5 cm3 (white women) to 172.1 cm3 (white men). White males exhibited the highest VAT volumes (22-36% higher) and black women exhibited the lowest VAT volumes (3-50% lower) associated with true positive, true negative and optimal identification of HTN compared to other race/sex groups (Table 1). VAT volumes associated with HTN among black participants were generally lower than those exhibited for whites. Conclusions: Although the utility of VAT alone to identify HTN cases is modest - likely a result of unaccounted HTN confounders - these findings display the distinct race- and sex-specific differences in VAT volumes associated with prevalent HTN in middle age adults.

Abstract MP32: Race-sex differences in hyperlipidemia awareness, treatment and control in the Reasons for Geographic And Racial Differences in Stroke (REGARDS) study

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Monika M Safford ◽  
Paul Muntner ◽  
Raegan Durant ◽  
Stephen Glasser ◽  
Christopher Gamboa ◽  
...  
Keyword(s):  
Sex Differences ◽  
Black Women ◽  
Black Men ◽  
Racial Differences ◽  
White Women ◽  
White Men ◽  
Risk Category ◽  
Chd Risk ◽  
And Control ◽  
Risk Categories

Introduction: To identify potential targets for eliminating disparities in cardiovascular disease outcomes, we examined race-sex differences in awareness, treatment and control of hyperlipidemia in the REGARDS cohort. Methods: REGARDS recruited 30,239 blacks and whites aged ≥45 residing in the 48 continental US between 2003-7. Baseline data were collected via telephone interviews followed by in-home visits. We categorized participants into coronary heart disease (CHD) risk groups (CHD or risk equivalent [highest risk]; Framingham Coronary Risk Score [FRS] >20%; FRS 10-20%; FRS <10%) following the 3 rd Adult Treatment Panel. Prevalence, awareness, treatment and control of hyperlipidemia were described across risk categories and race-sex groups. Multivariable models examined associations for hyperlipidemia awareness, treatment and control between race-sex groups compared with white men, adjusting for predisposing, enabling and need factors. Results: There were 11,677 individuals at highest risk, 847 with FRS >20%, 5791 with FRS 10-20%, and 10,900 with FRS<10%; 43% of white men, 29% of white women, 49% of black men and 43% of black women were in the highest risk category. More high risk whites than blacks were aware of their hyperlipidemia but treatment was 10-17% less common and control was 5-49% less common among race-sex groups compared with white men across risk categories. After multivariable adjustment, all race-sex groups relative to white men were significantly less likely to be treated or controlled, with the greatest differences for black women vs. white men (Table). Results were similar when stratified on CHD risk and area-level poverty tertile. Conclusion: Compared to white men at similar CHD risk, fewer white women, black men and especially black women who were aware of their hyperlipidemia were treated and when treated, they were less likely to achieve control, even after adjusting for factors that influence health services utilization.

scholarly journals Inequalities in Hypertension and Diabetes in Canada: Intersections between Racial Identity, Gender, and Income

2017 ◽  
Vol 27 (4) ◽  
pp. 371 ◽  
Author(s):  
Thierry Gagné ◽  
Gerry Veenstra
Keyword(s):  
Racial Identity ◽  
Black Women ◽  
Black Men ◽  
White Women ◽  
White Men ◽  
Canadian Community Health Survey ◽  
The United States ◽  
Unequal Distribution ◽  
Community Health Survey ◽  
Using Data

<p>A growing body of research from the United States informed by intersectionality theory indicates that racial identity, gender, and income are often entwined with one another as determinants of health in unexpectedly complex ways. Research of this kind from Canada is scarce, however. Using data pooled from ten cycles (2001- 2013) of the Canadian Community Health Survey, we regressed hypertension (HT) and diabetes (DM) on income in subsamples of Black women (n = 3,506), White women (n = 336,341), Black men (n = 2,806) and White men (n = 271,260). An increase of one decile in income was associated with lower odds of hypertension and diabetes among White men (ORHT = .98, 95% CI (.97, .99); ORDM = .93, 95% CI (.92, .94)) and White women (ORHT = .95, 95% CI (.95, .96); ORDM = .90, 95% CI (.89, .91)). In contrast, an increase of one decile in income was not associated with either health outcome among Black men (ORHT = .99, 95% CI (.92, 1.06); ORDM = .99, 95% CI (.91, 1.08)) and strongly associated with both outcomes among Black women (ORHT = .86, 95% CI (.80, .92); ORDM = .83, 95% CI (.75, .92)). Our findings highlight the complexity of the unequal distribution of hypertension and diabetes, which includes inordinately high risks of both outcomes for poor Black women and an absence of associations between income and both outcomes for Black men in Canada. These results suggest that an intersectionality framework can contribute to uncovering health inequalities in Canada.</p><p><em>Ethn Dis.</em>2017;27(4):371-378; doi:10.18865/ ed.27.4.371. </p>

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