Heterogeneity in Cardiovascular Disease Risk Factor Prevalence Among White, African American, African Immigrant, and Afro-Caribbean Adults: Insights From the 2010-2018 National Health Interview Survey

Length of Time in the United States and Cardiometabolic Outcomes Among Foreign and US-Born Black Adults

INTRODUCTION

Among certain immigrant groups, length of time spent living in the United States (LOT) is associated with poor cardiometabolic health. We aimed to evaluate the association between LOT and cardiometabolic outcomes among US Black adults.

METHODS

The National Health Interview Survey is an annual representative survey of non-institutionalized US civilians. We combined 2016-2018 data and included all Black adults (N = 10,034). LOT was defined as the number of years lived in the US, if foreign-born. Obesity, hypertension, diabetes, and high cholesterol were each self-reported. We used logistic regression models to determine whether LOT was associated with cardiometabolic health factors overall and by origin subgroups-US-born non-Hispanic, Hispanic, African-born, and Caribbean/Central American (CA)-born groups.

RESULTS

Our study population was 81% US-born non-Hispanic, 5% Hispanic (both foreign- and US-born), 6% African-born, and 6% Caribbean/CA-born groups. Among Black adults, compared with the US-born, being foreign-born with < 15 years in the US was associated with lower odds of obesity (OR: 0.31, 95%CI: 0.23-0.42) and hypertension (OR: 0.35, 95%CI: 0.24-0.49). In subgroup analyses, Caribbean/CA-born individuals with < 15 years in the US had 64% lower odds of obesity (OR: 0.36, 95%CI 0.15-0.84) and 63% lower odds of hypertension (OR: 0.37, 95%CI 0.15-0.88) compared with those with ≥ 15 years.

CONCLUSION

Shorter LOT was associated with more favorable cardiometabolic health, with differential associations among foreign-born Black adults based on origin. This heterogeneity suggests a need to examine the implications of acculturation in the context of the specific population of interest.

Dietary saturated fatty acids increased all-cause and cardiovascular disease mortality in an elderly population: The National Health and Nutrition Examination Survey

The influence of dietary saturated fatty acids intake on human health and cardiovascular disease (CVD) remains debated. The aim of this study was to explore the association between dietary saturated fatty acid consumption and all-cause and CVD mortality among the elderly population. Data for the participants in this study were obtained from the National Health and Nutrition Examination Survey dataset spanning the years 2003 through 2008. Information regarding mortality and the follow-up duration were extracted from the 2019 public-use linked mortality files provided by the National Center for Health Statistics. A total of 3404 participants were included in this study. The ratio of dietary saturated fatty acids to total fat was associated with the mortality from all-cause, heart disease, and cerebrovascular disease after adjusting confounding factors (P < .05). For every 10% increase in the saturated fatty acids to total fat ratio, all-cause mortality increased by 24% (hazard ratio [HR], 1.24; 95% confidence interval [CI], 1.13-1.37), the heart disease mortality increased by 26% (HR, 1.26; 95% CI, 1.05-1.52), and the cerebrovascular disease mortality increased by 67% (HR, 1.67; 95% CI, 1.14-2.45) at 10 years' follow-up. In addition, low dietary saturated fatty acids intake was associated with reduced mortality because of all-cause and heart disease after adjusting confounding factors (P < .05). In conclusion, in this elderly population, dietary saturated fatty acid intake was associated with all-cause mortality, heart disease mortality, and cerebrovascular disease mortality. Reducing saturated fatty acid intake in the diet may extend the survival rate for the elderly population. However, the difference of the effects of specific dietary saturated fatty acids with different chain lengths on mortality needs further study.