Cardiovascular Health by Life's Essential 8 and Associations With Coronary Artery Calcium in South Asian American Adults in the MASALA Study

Life's Essential 8 and the risk of cardiovascular disease: a systematic review and meta-analysis

AIMS

The benefits of achieving optimal cardiovascular health (CVH) through Life's Simple 7 (LS7) are well-documented across diverse populations. In this study, we assess the updated metrics, Life's Essential 8 (LE8), and its association with long-term cardiovascular disease (CVD) outcomes and mortality.

METHODS AND RESULTS

We conducted a comprehensive systematic review, searching PubMed, Google Scholar, Cochrane Library, and ScienceDirect from January 2022 until June 2024, focusing on studies that specifically assessed the impact of LE8 on CVH. The statistical analysis used RevMan 5.4 and applied a random effects model to synthesize hazard ratios (HRs) for primary and secondary outcomes. This study is registered in PROSPERO (CRD42024558493). Our final analysis comprised 34 observational studies, encompassing 1 786 664 participants aged 18-80 years, with an average follow-up of approximately 11.6 years. Pooled analysis revealed a statistically significant decrease in the risk of CVD among individuals with higher LE8 scores compared with those with lower scores, with an HR of 0.47 (95% CI: 0.39-0.56, P < 0.00001). Higher LE8 scores were also associated with significant reductions in both all-cause mortality (HR: 0.54, 95% CI: 0.43-0.69, P < 0.00001) and CVD-related mortality (HR: 0.37, 95% CI: 0.26-0.52, P < 0.00001. Moreover, individuals with high LE8 scores have a 56% lower risk of coronary heart disease and a 48% lower risk of stroke.

CONCLUSION

LE8 has a strong inverse association with CVD risk and mortality, with higher LE8 scores corresponding to significantly lower risk levels.

Cardiovascular Disease Risk in South Asians in the Baylor Scott and White Health DILWALE Registry

Background

Despite implementation of preventive interventions targeting cardiovascular disease (CVD), atherosclerotic CVD (ASCVD) remains a major public health concern in the South Asian (SA) population.

Objectives

The purpose of this study was to assess the risk factor prevalence and ASCVD outcomes in SA population in the United States.

Methods

The DIL Wellness and Arterial health Longitudinal Evaluation registry collected data retrospectively on SA adult patients receiving care in the Baylor Scott & White Healthcare system. Overall and sex stratified analyses were performed to assess the prevalence of traditional CVD risk factors and adverse ASCVD events.

Results

A total of 31,781 individuals were included (16,644 men, 15,137 women). ASVCD risk factor profile included hyperlipidemia (43.0%), hypertension (22.2%), diabetes mellitus (15.5%), and current smoking (3.6%). ASCVD risk factors were more prevalent among men compared to women; hyperlipidemia (55.0% vs 29.9%), hypertension (26.9% vs 17.1%), diabetes mellitus (18.5% vs 12.3%), and current smoking (6.18% vs 0.71%), all P < 0.001, respectively. The prevalence of ASCVD and premature ASCVD was 7.1% and 2.5%, respectively. The median age of ASCVD diagnosis was 65 (Q1, Q3: 53, 74) years in the overall cohort, 64 (Q1, Q3: 52, 73) years for men, and 70 (Q1, Q3: 60, 77) years for women. Risk factors were more prevalent in those with premature ASCVD as compared to those without ASCVD: hyperlipidemia (89.3% vs 39.4%), hypertension (68.3% vs 17.8%), and diabetes mellitus (39.2% vs 12.7%), all P < 0.001, respectively. Hypertension and hyperlipidemia were most strongly associated with ASCVD in both men and women (OR: 3.48 [95% CI: 3.06-3.96] and 3.53 [95% CI: 3.01-4.17]), respectively. Women with premature ASCVD were less likely to be prescribed lipid-lowering therapy (statins 80.5% vs 92.1%, P < 0.001; ezetimibe 8.6% vs 16.2%, P = 0.009).

Conclusions

ASCVD and premature ASCVD are prevalent among SA adults residing in the United States. Efforts toward risk factor treatment optimization are needed to slow the risk of ASCVD in this higher risk population.

Culturally Adapted Lifestyle Intervention for South Asian Adults With Cardiovascular Risk Factors: The SAHELI Randomized Clinical Trial

Importance

South Asian adults in the US experience excess cardiovascular disease (CVD) compared with other racial and ethnic groups. The effectiveness and reach of guideline-recommended lifestyle interventions have not been evaluated in this population.

Objective

To evaluate whether a culturally adapted, group lifestyle intervention will improve CVD risk factors more effectively than written health education materials among US South Asian adults.

Design, Setting, and Participants

This single-blind randomized clinical trial was conducted from March 6, 2018, to February 11, 2023 at community sites in the Chicago, Illinois, metropolitan area. South Asian adults aged 18 to 65 years who were overweight or obese, had no history of CVD events, and had at least 1 additional CVD risk factor (hypertension, dyslipidemia, prediabetes, or diabetes) were eligible for inclusion.

Intervention

A 16-week, culturally adapted, group-based lifestyle intervention led by community health coaches. Lifestyle modification counseling was delivered in English, Gujarati, Hindi, and Urdu. Participants tracked their diet and physical activity (PA) and received 4 optional group maintenance sessions between months 5 and 11 of follow-up. The intervention was delivered in person prior to the onset of the COVID-19 pandemic and via videoconference starting in March 2020. The control group received written health education materials, delivered monthly.

Main Outcomes and Measures

Primary outcomes were the between-group differences in CVD risk factor changes from baseline to 12 months, including weight, systolic blood pressure (SBP), diastolic blood pressure (DBP), glycated hemoglobin (HbA1c), and total cholesterol, estimated using multivariate mixed-effects regression models. Secondary outcomes were self-reported diet quality, PA, and self-efficacy, estimated using univariate mixed-effects regression models.

Results

Among 549 randomized participants, 318 (57.9%) were women, and mean (SD) participant age was 49.2 (9.5) years. Mean differences in CVD risk factor changes from baseline to 12 months in the intervention vs control group were calculated for weight (mean difference, -0.07 kg; 95% CI, -0.55 to 0.42), SBP (mean difference, 0.47 mm Hg; 95% CI, -1.85 to 2.79), DBP (mean difference, 0.44 mm Hg; 95% CI, -1.06 to 1.95), cholesterol (mean difference, -2.47 mg/dL; 95% CI, -8.51 to 3.57), and HbA1c (mean difference, -0.07%; 95% CI -0.20% to 0.07%). Intervention participation was associated with greater improvements in dietary quality, PA, and self-efficacy than control.

Conclusions and Relevance

In the SAHELI randomized clinical trial, a culturally adapted, group lifestyle intervention was not more effective than written health education materials for CVD risk factor reduction among US South Asian adults, but the intervention was associated with small improvements in self-reported health behaviors. Effective CVD prevention interventions for this elevated-risk population require further investigation.

Trial Registration

ClinicalTrials.gov Identifier: NCT03336255.

Social Determinants of Cardiovascular Health in Asian Americans: A Scientific Statement From the American Heart Association

To achieve cardiovascular health (CVH) equity in the United States, an understanding of the social and structural factors that contribute to differences and disparities in health is necessary. The Asian American population is the fastest-growing racial group in the United States but remains persistently underrepresented in health research. There is heterogeneity in how individual Asian American ethnic groups experience CVH and cardiovascular disease outcomes, with certain ethnic groups experiencing a higher burden of adverse social conditions, disproportionately high burden of suboptimal CVH, or excess adverse cardiovascular disease outcomes. In this scientific statement, upstream structural and social determinants that influence CVH in the Asian American population are highlighted, with particular emphasis on the role of social determinants of health across disaggregated Asian American ethnic groups. Key social determinants that operate in Asian American communities include socioeconomic position, immigration and nativity, social and physical environments, food and nutrition access, and health system-level factors. The role of underlying structural factors such as health, social, and economic policies and structural racism is also discussed in the context of CVH in Asian Americans. To improve individual-, community-, and population-level CVH and to reduce CVH disparities in Asian American ethnic subgroups, multilevel interventions that address adverse structural and social determinants are critical to achieve CVH equity for the Asian American population. Critical research gaps for the Asian American population are given, along with recommendations for strategic approaches to investigate social determinants of health and intervene to reduce health disparities in these communities.

Changes in Life's Essential 8 and risk of cardiovascular disease in Chinese people

BACKGROUND

The American Heart Association recently released an updated algorithm for evaluating cardiovascular health-Life's Essential 8 (LE8). However, the associations between changes in LE8 score over time and risk of cardiovascular disease (CVD) remain unclear.

METHODS

We investigated associations between 6-year changes (2006-12) in LE8 score and risk of subsequent CVD events (2012-20) among 53 363 Chinese men and women from the Kailuan Study, who were free from CVD in 2012. The LE8 score was calculated based on eight components: diet quality, physical activity, smoking status, sleep health, body mass index, blood lipids, blood glucose and blood pressure. Multivariable-adjusted Cox proportional-hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs).

RESULTS

We documented 4281 incident CVD cases during a median of 7.7 years of follow-up. Compared with participants whose LE8 scores remained stable in a 6-year period, those with the large increases of LE8 score over the 6-year period had a lower risk of CVD, heart disease and stroke in the subsequent 8 years [HRs and 95% CIs: 0.67 (0.64, 0.70) for CVD, 0.65 (0.61, 0.69) for heart disease, 0.71 (0.67, 0.76) for stroke, all Ptrend < 0.001]. Conversely, those with the large decreases of LE8 score had 47%, 51% and 41% higher risk for CVD, heart disease and stroke, respectively. These associations were consistent across the subgroups stratified by risk factors.

CONCLUSIONS

Improving LE8 score in a short- and moderate-term was associated with a lower CVD risk, whereas decreased LE8 score over time was associated with a higher risk.

Associations of life's essential 8 with extent of multi-territorial atherosclerotic plaques and stenosis: a cross-sectional study

BACKGROUND

Life's Essential 8 (LE8), the recently updated construct for quantifying cardiovascular health, is related to the risks of cardiovascular events. The present study aimed to evaluate associations of LE8 score with the multi-territorial extent of atherosclerosis in a community-dwelling population.

METHODS

Data were derived from the baseline cross-sectional survey of the PolyvasculaR Evaluation for Cognitive Impairment and vaScular Events (PRECISE) study in Lishui City. The LE8 included overall, medical and behavior LE8 scores, and were categorized as low (< 60), moderate (60-<80), and high (≥ 80) groups. Vascular magnetic resonance imaging was used to evaluate intracranial and extracranial arteries; thoracoabdominal computed tomography angiography to evaluate coronary, subclavian, aorta, renal, ilio-femoral arteries; and ankle-brachial index to evaluate peripheral arteries. The presence of atherosclerotic plaque or stenosis in any territory was defined as plaque or vascular stenosis with 1 territory affected or more in these arteries. The extent of atherosclerotic plaques or stenosis was assessed according to the number of these 8 vascular sites affected, and graded as four grades (none, single territory, 2-3 territories, 4-8 territories).

RESULTS

Of 3065 included participants, the average age was 61.2 ± 6.7 years, and 53.5% were women (n = 1639). The moderate and high overall LE8 groups were associated with lower extent of multi-territorial plaques [common odds ratio (cOR) 0.44, 95% confidence interval (CI), 0.35-0.55; cOR 0.16, 95%CI, 0.12-0.21; respectively] and stenosis (cOR 0.51, 95%CI, 0.42-0.62; cOR 0.16, 95%CI, 0.12-0.21; respectively) after adjustment for potential covariates. Similar results were observed for medical LE8 score with the extent of multi-territorial plaques and stenosis (P < 0.05). We also found the association between behavior LE8 score and the extent of multi-territorial stenosis (P < 0.05).

CONCLUSIONS

The higher LE8 scores, indicating healthier lifestyle, were associated with lower presence and extent of atherosclerotic plaque and stenosis in southern Chinese adults. Prospective studies are needed to further validate these findings.