Higher dietary quality was independently associated with lower odds of self-reported cardiovascular disease among Chinese adults (OR 0.879; 95% CI 0.845-0.915; p<0.001), regardless of BMI.
Cross-Sectional (n=975)
Does higher dietary quality reduce the odds of self-reported cardiovascular disease in Chinese adults?
Higher dietary quality is independently associated with lower odds of self-reported cardiovascular disease in Chinese adults, regardless of BMI.
Effect estimate: OR 0.879 (95% CI 0.845-0.915)
p-value: p=<0.001
Background/Objectives: Cardiovascular disease (CVD) is the leading cause of death in China. While obesity and dietary patterns are well-established factors, the independent association between overall dietary quality and CVD prevalence—specifically whether this link persists regardless of Body Mass Index (BMI)—requires further clarification. Furthermore, the behavioral and cognitive correlates that drive dietary quality, such as health literacy, remain insufficiently explored. This study evaluated the association of dietary quality with self-reported CVD among Chinese adults, independent of BMI, and identified the key behavioral and cognitive factors associated with dietary adherence in this population. Methods: This cross-sectional study surveyed 975 Chinese adults through anonymous questionnaires and collected self-reported data on CVD, BMI, dietary quality, and health literacy. One-way analysis of variance (ANOVA) and the chi-square test were used to compare the characteristics between groups, and multivariate Logistic regression was used to analyze the association between dietary quality and the odds of CVD, sequentially adjusting for variables such as BMI, physical activity. Results: Higher dietary quality was independently associated with lower odds of CVD (Model 3: OR = 0.879, 95% CI: 0.845–0.915, p < 0.001). Notably, this inverse association remained significant after adjusting for BMI, which itself showed no significant association with CVD prevalence in the multivariable model. Regarding population profiling, poor dietary quality was significantly related to regular smoking (p < 0.05), whereas age, gender, residence, employment status, and BMI showed no significant associations with dietary quality categories. Furthermore, health literacy (p < 0.05) and physical activity (p < 0.05) showed positive associations with superior dietary quality. Conclusions: Dietary quality is a significant independent factor inversely associated with CVD prevalence, regardless of obesity status. Suboptimal dietary habits cluster among smokers and individuals with lower health literacy and physical activity levels, showing a stronger association with cognitive and behavioral factors than with demographic or occupational characteristics. Interventions should prioritize enhancing health literacy and addressing the clustering of unhealthy behaviors to effectively address the cardiovascular burden in the Chinese population.
Wang et al. (Wed,) conducted a cross-sectional in Cardiovascular disease (CVD) (n=975). Dietary quality was evaluated on Self-reported CVD (OR 0.879, 95% CI 0.845-0.915, p=<0.001). Higher dietary quality was independently associated with lower odds of self-reported cardiovascular disease among Chinese adults (OR 0.879; 95% CI 0.845-0.915; p<0.001), regardless of BMI.