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  • Dunbar, Sandra B  (6)
  • Vaccarino, Viola  (6)
  • 1
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 139, No. Suppl_1 ( 2019-03-05)
    Abstract: Introduction: Arterial stiffness is associated with cardiovascular (CV) risk factors and adverse cardiovascular events. While inter-racial differences in arterial stiffness have been reported, factors contributing to intra-racial differences within Blacks are less known. We examined whether neighborhood characteristics and personal resilience factors were associated with arterial stiffness among Blacks. Hypothesis: More desirable neighborhood characteristics and greater personal resilience are associated with reduced arterial stiffness. Methods: We examined 385 Black adults (age 53 ± 10, 40% male) without known CV disease living in Atlanta, GA. Arterial stiffness was measured as augmentation index (AIX) and pulse wave velocity (PWV) using applanation tonometry (Sphygmocor Inc). Perceived residential neighborhood characteristics in 7 domains: aesthetic quality, walking environment, safety, food access, social cohesion, activity with neighbors, and violence were determined. Personal resilience was also assessed using standard questionnaires on experience of discrimination, environmental mastery, purpose in life, optimism, resilient coping, and depressive symptoms. Multiple linear regression models were used to examine the differences of arterial stiffness between the highest and the lowest tertiles of neighborhood characteristics and personal resilience factors after adjustment for age, gender, systolic blood pressure, body mass index, household income, education, marital status, and employment status. Results: Higher composite scores of neighborhood characteristics were associated with lower AIX (β=-3.42, 95% CI [-6.42 to -0.41], P=0.026; highest vs lowest tertiles). Specifically, higher scores of safety (β=-4.26, 95% CI [-7.34 to -1.17] , P=0.007) and social cohesion (β=-4.62 [-7.64 to -1.61], P=0.003) were associated with lower AIX (highest vs lowest tertiles for both). For factors of personal resilience, higher scores in purpose in life (β=-4.89 [-7.88 to -1.90] , P=0.001) and resilient coping (β=-3.26 [-6.36 to -0.15], P=0.040) were significantly associated with lower AIX (highest vs lowest tertiles for both). There were no significant associations between PWV and scores of neighborhood characteristics or personal resilience factors. Conclusion: In a study examining the impact of neighborhood and markers of resilience on arterial stiffness in an exclusively Black cohort, we found that better neighborhood characteristics and personal resilience factors were associated with lower pulse wave reflections (AIX).
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1466401-X
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  • 2
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 139, No. Suppl_1 ( 2019-03-05)
    Abstract: Introduction: Intra-racial heterogeneity in cardiovascular health (CVH) among Blacks is understudied, and more research is needed to identify factors promoting CVH among Blacks. Neighborhood environment is increasingly recognized as an important determinant of CV risk and health, Yet whether specific features of neighborhood physical and social environments may promote CV resilience among Blacks has been underexplored. Hypothesis: Better neighborhood characteristics are associated with ideal CVH among Black adults, measured as Life’s Simple 7 (LS7) scores. Methods: We recruited 392 Black adults (age 53 ± 10, 39% male) without known CV disease in Atlanta, GA, who resided in 199 residential neighborhood (defined as census tracts). Seven neighborhood domains were assessed via questionnaire: aesthetic quality, walking environment, safety, food access, social cohesion, activity with neighbors, and violence. CVH was determined by LS7 scores calculated from measured blood pressure, glucose, cholesterol, body mass index (BMI), and self-reported exercise, diet, and smoking, and categorized into poor (0-8), intermediate (9-10), and ideal (11-14). Multinomial logistic regression was used to examine the association between neighborhood characteristics and the odds of intermediate/ideal CVH categories compared to poor CVH after adjustment for age, gender, household income, education, marital status, and employment status. Results: A total of 53 (14%), 110 (28%), and 229 (58%) participants had ideal, intermediate, and poor LS7 scores, respectively. Better scores in the neighborhood domains of social cohesion and activity with neighbors were significantly associated with higher adjusted odds of ideal LS7 scores (OR 1.95, 95% CI [1.32 - 2.90] and 1.65 [1.16 - 2.35] per 1 standard deviation [SD] increase in respective scores). Specifically, better scores in social cohesion were associated with higher odds of ideal CVH in exercise (OR 1.73 [1.16 - 2.59] ), diet (OR 1.99 [1.14 - 3.48]), and BMI (OR 1.51 [1.09 - 2.09] ); better scores in activity with neighbors were also similarly associated with higher odds of ideal CVH in exercise (OR 1.47 [0.99 - 2.19]), diet (OR 2.37 [1.32 - 4.26] ), and BMI (OR 1.44 [1.05 - 1.96]; per 1 SD in respective scores). Aesthetic quality, walking environment, safety, food access, and violence were not significantly associated with overall CVH categories in the adjusted models. Conclusion: More desirable neighborhood characteristics, particularly social cohesion and activity with neighbors, were associated with better CVH among Black adults. Further research is needed to investigate whether interventions to improve neighborhood qualities lead to better CVH in Blacks.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1466401-X
    Location Call Number Limitation Availability
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  • 3
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 142, No. Suppl_3 ( 2020-11-17)
    Abstract: Introduction: Arterial stiffness is a precursor for development of hypertension and premature cardiovascular disease (CVD). Physical activity has been associated with lower arterial stiffness among largely White populations, but the types of activity required and whether these findings apply to Blacks remain unknown. We examined whether physical activity levels were associated with arterial stiffness among Blacks in two independent cohorts. Methods: In the Morehouse-Emory Cardiovascular (MECA) Center for Health Equity, 458 Black adults (age 53 ± 10, 39% male) without known CVD living in Atlanta, GA were recruited. Arterial stiffness was measured as pulse wave velocity (PWV) using applanation tonometry (Sphygmocor Inc). Total and domain specific physical activity (work, active living, household, and sport/exercise) were assessed by self-report using the Jackson Heart Study Physical Activity Questionnaire. Multiple linear regression models were used to investigate differences after adjusting for age, gender, blood pressure, diabetes, and smoking. Change in the Framingham Risk Score (FRS) was tested as a potential mediator. Findings were validated in the Emory-Morehouse Partnership to Reduce Cardiovascular Health Disparities (META-Health) --another independent cohort of Black adults (n=60, age 50 ± 10, 25% male). Results: Lower arterial stiffness was associated with higher self-reported levels of sport/exercise (Beta = -0.54 [-1.03, -0.05], p=0.03, highest versus lowest quartile), but not work, active living, household-related physical activities, or the overall physical activity scores. 26.9% of this improvement appeared to be mediated through changes in FRS factors. These findings were confirmed in an independent group of Blacks in META-Health where higher levels of sport/exercise remained associated with lower arterial stiffness (Beta = -1.46 [-2.80, -0.12] , p=0.03, highest versus lowest quartile). Conclusion: Higher sport/exercise related physical activity is associated with lower arterial stiffness in Blacks, an association that is only partially attributable to a lower traditional CVD risk factor burden.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 1466401-X
    Location Call Number Limitation Availability
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  • 4
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 141, No. Suppl_1 ( 2020-03-03)
    Abstract: Introduction: Early trauma (e.g. general, emotional, physical, and sexual abuse before age 18) has been associated with both cardiovascular disease (CVD) risk and lifestyle-related risk factors for CVD including smoking, obesity, and physical inactivity. However, previous studies have primarily focused on White participants, despite the fact that early trauma is more common in Blacks. In particular, the role played by low socioeconomic status (SES) in this population has been relatively understudied. Hypothesis: Black individuals reporting early trauma will have worse cardiovascular health (CVH) as measured by the American Heart Association’s Life’s Simple 7 (LS7) scores and these associations will vary by SES. Methods: We recruited 499 Black adults (age 53 ± 10, 38% male) without CVD from the Atlanta, GA metropolitan area. The Early Trauma Inventory (ETI) was administered to assess physical, sexual, emotional abuse and general trauma. CVH was determined by LS7 scores calculated from measured blood pressure, blood glucose, cholesterol, body mass index (BMI), and self-reported exercise, diet, and smoking and was categorized as poor (0-8), intermediate (9-10), and ideal (11-14). Multinomial logistic regression was used to examine the relationship between early trauma and the odds of intermediate (vs. poor) and ideal (vs. poor) CVH categories after adjusting for age, gender, household income, education, marital status, employment status, and depression. After testing for interaction between ETI and SES, stratified analysis was conducted separately on individuals with low and high SES (defined as household income less or greater than $50,000 per year, respectively). Results: A total of 55 (11%), 107 (21%), and 337 (67%) participants had ideal, intermediate, and poor LS7 scores, respectively. In the full cohort, higher levels of early trauma were associated with lower adjusted odds of ideal LS7 scores (OR 0.94, 95% CI [0.88 - 1.00] per 1 SD increase in the ETI score). In SES-stratified analyses, higher levels of early trauma (OR 0.91, 95% CI [0.84 - 0.98] ), in particular emotional (OR 0.74, 95% CI [0.59 - 0.94]) and sexual abuse (OR 0.69, 95% CI [0.49 - 0.96] ), were significantly associated with lower adjusted odds of ideal LS7 scores among lower, but not higher, SES Black participants (p value for interaction =0.03). Among the CVH components, emotional and sexual abuse were both associated with significantly lower adjusted odds of ideal BMI (OR 0.81, 95% CI [0.68-0.97] and OR 0.72, 95% CI [0 .56-0.93], respectively) in low SES participants. Conclusion: Early trauma, particularly emotional and sexual abuse, was associated with worse CVH among Black individuals with lower SES. Further research is needed to investigate the mechanisms through which economic disadvantage potentiates the adverse influence of early trauma on CVH in Black individuals.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 1466401-X
    Location Call Number Limitation Availability
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  • 5
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 141, No. Suppl_1 ( 2020-03-03)
    Abstract: Introduction: Sleep is hypothesized to be a contributing factor towards disparities in cardiovascular disease (CVD). It has been demonstrated that Black Americans have worse sleep quality compared to other ethnic groups, but within group differences have not been studied. Whether overall sleep quality and patterns affect cardiovascular health (CVH) among Blacks has yet to be elucidated. Hypothesis: Black individuals reporting worse sleep quality and patterns will have poor CVH as measured by the American Heart Association’s Life’s Simple 7 (LS7) scores. Methods: We recruited 499 Black adults (age 53 ± 10, 38% male) without known CVD from the Atlanta, GA metropolitan area. Sleep quality and patterns were assessed by the Pittsburgh Sleep Quality Index (PSQI) which includes sleep quality, nighttime disturbance, efficiency (amount of time slept while in bed), daytime dysfunction, duration, need of medications and latency (time required to fall asleep). CVH was determined by LS7 scores calculated from measured blood pressure, glucose, cholesterol, body mass index (BMI), and self-reported exercise, diet, and smoking, and categorized into poor (0-8), intermediate (9-10), and ideal (11-14). Multinomial logistic regression was used to examine the relationship between sleep and the odds of intermediate (vs. poor) and ideal (vs. poor) CVH categories after adjusting for age, gender, household income, education, marital status, and employment status. Results: A total of 55 (11%), 107 (21%), and 337 (67%) participants had ideal, intermediate, and poor LS7 scores, respectively. Those reporting PSQI-assessed poor sleep quality (OR 0.50, 95% CI [0.33 - 0.78]), longer latency (OR 0.50, 95% CI [0.36 - 0.70] ), disturbance (OR 0.45, 95% CI [0.26 - 0.77]) and daytime dysfunction (OR 0.52, 95% CI [0.31 - 0.89] ) had significantly lower adjusted odds of having ideal CVH. Daytime dysfunction was significantly associated with lower adjusted odds of having ideal blood pressure (OR 0.57, 95% CI [0.38 - 0.87]), glucose (OR 0.71, 95% CI [0.51 - 0.98] ), and physical activity (OR 0.58, 95% CI [0.36 - 0.93]). Similarly, longer latency was significantly associated with lower adjusted odds of having ideal BMI (OR 0.72, 95% CI [0.54 - 0.95] ), blood pressure (OR 0.71, 95% CI [0.55 - 0.92]), and cholesterol (OR 0.73, 95% CI [0.55 - 0.98] ). PSQI-assessed shorter sleep duration was not associated with poor overall CVH, but was associated with significantly lower adjusted odds of having ideal blood pressure (OR 0.77, 95% CI [0.61 - 0.99]). Conclusion: Among Black Americans, poor sleep in terms of quality, nighttime disturbance, daytime dysfunction and longer latency, was associated with worse overall CVH or its components. Whether addressing sleep quality in Blacks will improve CVH and outcomes needs to be studied.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 1466401-X
    Location Call Number Limitation Availability
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  • 6
    In: Vascular Medicine, SAGE Publications, Vol. 27, No. 1 ( 2022-02), p. 13-20
    Abstract: Arterial stiffness is a precursor for the development of hypertension and premature cardiovascular disease (CVD). Physical activity has been associated with lower arterial stiffness among largely White populations, but the types of activity required and whether these findings apply to Black adults remain unknown. We examined whether physical activity levels were associated with arterial stiffness among Black adults in two independent cohorts. In the Morehouse-Emory Cardiovascular (MECA) Center for Health Equity, 378 Black adults (age 52.8 ± 10.3, 39.7% male) without known CVD living in Atlanta, GA were recruited. Arterial stiffness was measured as pulse wave velocity (PWV). Total and domain-specific physical activity were assessed by self-report. Multiple linear regression models were used to investigate differences across physical activity levels after adjusting for age, sex, CVD risk factors, and socioeconomic status. Findings were validated in an independent cohort of Black adults ( n = 55, age 50.4 ± 9.2, 23.6% male). After adjustment for covariates, lower arterial stiffness was associated with higher self-reported levels of sport/exercise (6.92 ± 1.13 vs 7.75 ± 1.14, p 〈 0.001, highest vs lowest quartile) and home/life activities (7.34 ± 1.24 vs 7.73 ± 1.07, p = 0.04, highest vs lowest quartile), but not work, active living, or the overall physical activity scores. These findings were replicated in the independent cohort where higher levels of sport/exercise remained associated with lower arterial stiffness (6.66 ± 0.57 vs 8.21 ± 0.66, p 〈 0.001, highest vs lowest quartile). Higher levels of sport/exercise and home/life-related physical activities (in comparison to occupational physical activity) are associated with lower arterial stiffness in Black adults.
    Type of Medium: Online Resource
    ISSN: 1358-863X , 1477-0377
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2027562-6
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