Key result
Higher income was associated with slower 5-year carotid IMT progression in middle-aged whites (difference -11.5 microm) but faster progression in blacks (difference 11.1 microm).
Why the study?
Does socioeconomic status affect the progression of carotid intima-media thickness in middle-aged adults?
Population
12,085 middle-aged black and white adults free of cardiovascular disease from 4 US sites participating in…
Comparison
High socioeconomic status (SES) / income vs Low socioeconomic status (SES) / income
Design
Cohort
Follow-up
9 years
Authors
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Racial differences in income-IMT associations should not yet alter risk assessment; leaves open mechanisms and replication in diverse cohorts.
Cohort (n=12,085)
Yes
Does socioeconomic status affect the progression of carotid intima-media thickness in middle-aged adults?
Mean Difference: -11.5 (95% CI -17.4–-5.6)
Socioeconomic status is inversely related to carotid IMT progression in middle-aged whites but positively related in middle-aged blacks, independent of baseline cardiovascular risk factors.
Ranjit et al. (2005) conducted a cohort in Free of cardiovascular disease (n=12,085). Socioeconomic status (income) vs. Lowest income category was evaluated on 5-year IMT progression rates (Difference -11.5 microm (whites) and 11.1 microm (blacks), 95% CI -17.4 to -5.6 (whites) and -0.1 to 22.3 (blacks)). Higher income was associated with slower 5-year carotid IMT progression in middle-aged whites (difference -11.5 microm) but faster progression in blacks (difference 11.1 microm).
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