Key result
Between 1999 and 2018, the age-adjusted prevalence of poor diet among US adults with cardiovascular disease significantly decreased from 47.5% to 37.5%, while the prevalence of obesity increased from 32.0% to 47.9%.
Why the study?
National trends in unhealthy lifestyle factors among US adults with cardiovascular disease had not been comprehensively examined between 1999 and 2018.
Cross-Sectional (n=5,610)
Absolute Event Rate: 37.5% vs 47.5%
p-value: p=<0.01
Among US adults with cardiovascular disease, diet quality improved between 1999 and 2018, but the prevalence of obesity increased significantly, highlighting the need for targeted lifestyle interventions.
Objectives To examine national trends in unhealthy lifestyle factors among adults with cardiovascular disease (CVD) in the United States (US) between 1999 and 2018. Methods We analyzed data from National Health and Nutrition Examination Survey (NHANES), a nationally representative survey of participants with CVD who were aged ≥20 years, which was conducted between 1999 and 2000 and 2017–2018. CVD was defined as a self-report of congestive heart failure, coronary heart disease, angina, heart attack, or stroke. The prevalence rate of each unhealthy lifestyle factor was calculated among adults with CVD for each of the 2-year cycle surveys. Regression analyses were used to assess the impact of sociodemographic characteristics (age, sex, race/ethnicity, family income, education level, marital status, and employment status). Results The final sample included 5610 NHANES respondents with CVD. The prevalence rate of their current smoking status remained stable among respondents with CVD between 1999 and 2000 and 2017–2018. During the same period, there was a decreasing trend in the age-adjusted prevalence rate of poor diet [primary American Heart Association (AHA) score <20; 47.5% (37.9%–57.0%) to 37.5% (25.7%–49.3%), p < 0.01]. Physical inactivity marginally increased before decreasing, with no statistical significance. The prevalence rate of sedentary behavior increased from 2007 to 2014 but subsequently returned to its original level in 2018 with no statistical significance. The age-adjusted prevalence rate of obesity increased from 32% (27.2%–36.8%) in 1999–2000 to 47.9% (39.9%–55.8%) in 2017–2018 ( p < 0.001). The age-adjusted prevalence rate of depression increased from 7% (4.2%–9.9%) in 1999–2000 to 13.9% (10.2%–17.6%) in 2017–2018 ( p = 0.056). Trends in mean for each unhealthy lifestyle factor were similar after adjustment for age. We found that respondents who had low education and income levels were at a higher risk of being exposed to unhealthy lifestyle factors (i.e., smoking, poor diet, and physical inactivity) than those who had high education and income levels. Conclusions There is a significant reduction in the prevalence rate of poor diet among US adults with CVD between 1999 and 2018, while the prevalence rate of obesity showed increasing trends over this period. The prevalence rate of current smoking status, sedentary behavior, and depression was either stable or showed an insignificant increase. These findings suggest that there is an urgent need for health policy interventions targeting unhealthy lifestyles among adults with CVD.
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Liang et al. (2023) conducted a cross-sectional in Cardiovascular disease (n=5,610). Survey year (2017-2018) vs. Survey year (1999-2000) was evaluated on Age-adjusted prevalence of poor diet (primary AHA score <20) (p=<0.01). Between 1999 and 2018, the age-adjusted prevalence of poor diet among US adults with cardiovascular disease significantly decreased from 47.5% to 37.5%, while the prevalence of obesity increased from 32.0% to 47.9%.
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