Parental history of stroke and myocardial infarction predicts coronary artery calcification: The Coronary Artery Risk Development in Young Adults (CARDIA) study.
ABSTRACT Few studies have examined the relationship between parental history of stroke and myocardial infarction (MI) and subclinical atherosclerosis, especially among young, asymptomatic individuals. This study investigates the association between coronary artery calcification (CAC) and parental history of stroke and MI in African-Americans and Caucasians from the CARDIA study.
Parental history of stroke and MI was determined by self-administered family history questionnaire at baseline and Year 5 examinations. Presence of coronary calcification was determined by computed tomography on 3041 individuals, age 32 to 47, including 1375 African-Americans and 1666 Caucasians. Analyses were restricted to individuals free of clinically manifest coronary heart disease (CHD) and stroke.
Parental history of stroke is associated with a two-fold greater risk of CAC in African-Americans, and this relationship is independent from established CHD risk factors (95% CI=1.14-3.43). There is no relationship between parental history of stroke and CAC status in Caucasians. Parental history of MI is associated with a two-fold greater risk of CAC in Caucasians (95% CI=1.38-2.92). The impact of parental history of MI in African-Americans is lower (OR=1.65; 95% CI=1.01-2.69) and no longer statistically significant after adjusting for known CHD risk factors.
The identification of individuals with a parental history of stroke and MI provides important information for clinicians by which to target primary prevention efforts. Further characterization of familial factors, especially genetic factors, contributing to increased risk of CAC will shed light on the basis of the observed associations.
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ABSTRACT: Parental stroke is a risk factor for stroke among the offspring. Carotid artery intima-media thickness (IMT) is a widely regarded surrogate marker for atherosclerosis and a predictive marker for stroke. This study examines whether parental stroke is associated with IMT progression. This longitudinal study had two measures of IMT that were taken upon enrollment of the 521 subjects and after an average follow-up of 4.1 years. The rate of IMT progression was tested for associations with parental stroke and cardiovascular risk factors using ANCOVA models. Age and sex were also tested as effect modifiers. The subjects were allocated into the young or old group using the age of 55 years. Parental history of stroke was significantly associated with progression of common carotid artery (CCA) IMT compared with no parental stroke history (13.52 vs. 10.43 μm/year, adjusted p = 0.035). The parental effect on IMT progression of the bifurcation and internal carotid artery was dependent on age group. Young subjects had faster progression, whereas older subjects with parental stroke had slower progression. There was a three-way interaction among sex, age, and parental stroke in CCA IMT progression, such that young women with parental stroke had a 69.7% faster progression than young women without parental stroke (15.58 vs. 9.18 μm/year). However, this difference was not found in young men or old subjects with and without parental stroke. Parental stroke is associated with carotid artery IMT progression and is more obvious in the young, especially among women. The results emphasize the clinical significance of parental stroke risk on atherosclerosis in young women. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.Atherosclerosis 02/2015; DOI:10.1016/j.atherosclerosis.2015.02.025 · 3.71 Impact Factor
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ABSTRACT: Objective We evaluated family history as a predictor of incident and progressive coronary artery calcium (CAC) using data from the Multi-Ethnic Study of Atherosclerosis (MESA). Background MESA is a multi-center prospective study of 6,814 asymptomatic individuals. The relationship between family history of coronary heart disease (CHD) and CAC incidence or progression has not been described previously. Methods A total of 5,099 participants had detailed information about family history of CHD (late versus premature and parental versus sibling history). The mean time between CAC scans was 3.1 ± 1.3 years. The association of late versus premature family history was assessed against CAC change using multivariate regression model adjusted for demographics and cardiac risk factors. Results A family history of premature CHD was associated with an odds ratio (OR) of 1.55 (p < 0.01) for incident development of CAC after adjusting for risk factors and demographics. A premature family history was associated with 14.4 units (p < 0.01) greater volume scores compared to those with no family history in similarly adjusted models by median regression analysis. A combined parental and sibling family history was associated with the greatest incidence and progression in demographic-adjusted models. Caucasians demonstrated the most consistent predictive relationship between family history of premature CHD and incidence (p < 0.01) and progression (p < 0.05) of CAC, though no significant interaction with ethnicity was noted. Conclusions Family history of premature CHD is associated with enhanced development and progression of subclinical disease, independent of other risk factors, in a multiethnic, population-based study.Atherosclerosis 01/2013; 232(2). DOI:10.1016/j.atherosclerosis.2013.11.042 · 3.71 Impact Factor