European journal of preventive cardiology · 2025
Socioeconomic status, cardiovascular risk factors and coronary atherosclerosis: a SCOT-HEART trial analysis.
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Weir-McCall Jonathan R, Wereski Ryan, Chen Jian, Zheng Jin, Kwiecinski Jacek, Adamson Philip D, Mills Nicholas L, Tzolos Evangelos, Berry Colin, Roditi Giles, van Beek Edwin J R, Shaw Leslee J, Nicol Edward D, Berman Daniel S, Slomka Piotr J, Dweck Marc R, Dey Damini, Tawakol Ahmed A, Newby David E, Williams Michelle C
Аннотация
AIMS: To investigate the relationship between socioeconomic status, plaque burden on coronary computed tomography angiography (CCTA), management and outcomes.
METHODS: In a post-hoc analysis of a multicentre randomised control trial, we assessed associations between socioeconomic status and qualitative (stenosis, adverse plaque characteristics) and quantitative (total plaque, calcified plaque, non-calcified and low attenuation) CCTA plaque features and examined the interaction of socioeconomic status on cardiovascular outcomes.
RESULTS: Socioeconomic status was available in 3948 participants of whom 1989 were randomised to CCTA and 1629 scans were suitable and available for quantitative plaque analysis. Within these 1629 participants, 15% were from the lowest socioeconomic quintile and 25% from the highest socioeconomic quintile. Participants in the most deprived socioeconomic group were younger, had lower cardiovascular risk, and less likely to have severe stenosis or multivessel disease. After adjustment for cardiovascular risk factors, there was no difference in quantitative plaque burden between socioeconomic groups. After a median of 4.75 years follow-up, CTCA-guided management was associated with similar changes in medical therapy, and similar reductions in the risk of coronary heart disease death, or non-fatal myocardial infarction in low and high socioeconomic groups, with no difference between the base and interaction models (p=0.35).
CONCLUSION: Socioeconomic status is not an independent predictor of coronary artery disease severity, rather, the association is mostly determined by modifiable risk factors. Preventive therapies, guided by CCTA, achieves similar benefits in both low and high socioeconomic status individuals.
METHODS: In a post-hoc analysis of a multicentre randomised control trial, we assessed associations between socioeconomic status and qualitative (stenosis, adverse plaque characteristics) and quantitative (total plaque, calcified plaque, non-calcified and low attenuation) CCTA plaque features and examined the interaction of socioeconomic status on cardiovascular outcomes.
RESULTS: Socioeconomic status was available in 3948 participants of whom 1989 were randomised to CCTA and 1629 scans were suitable and available for quantitative plaque analysis. Within these 1629 participants, 15% were from the lowest socioeconomic quintile and 25% from the highest socioeconomic quintile. Participants in the most deprived socioeconomic group were younger, had lower cardiovascular risk, and less likely to have severe stenosis or multivessel disease. After adjustment for cardiovascular risk factors, there was no difference in quantitative plaque burden between socioeconomic groups. After a median of 4.75 years follow-up, CTCA-guided management was associated with similar changes in medical therapy, and similar reductions in the risk of coronary heart disease death, or non-fatal myocardial infarction in low and high socioeconomic groups, with no difference between the base and interaction models (p=0.35).
CONCLUSION: Socioeconomic status is not an independent predictor of coronary artery disease severity, rather, the association is mostly determined by modifiable risk factors. Preventive therapies, guided by CCTA, achieves similar benefits in both low and high socioeconomic status individuals.