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| Abstract |
<p><b>BACKGROUND: </b>The purpose of this study was to estimate the prevalence and number of cerebral microbleeds (CMBs) in a Hispanic and Latino cohort from various self-identified backgrounds and test associations with age, vascular risk factors, APOE (apolipoprotein E), and cognitive function.</p><p><b>METHODS: </b>The 3T brain magnetic resonance imaging exams were obtained on SOL-INCA-MRI (Study of Latinos-Investigation of Neurocognitive Aging-MRI) magnetic resonance imaging study participants, a community-based study. CMB number was counted and categorized as: (1) any CMB, (2) lobar only, (3) deep only, (4) mixed, (5) deep+mixed, and (6) lobar+mixed. We examined whether prevalence of CMBs varied by age, sex, education, Hispanic background, cardiovascular risk factors (hypertension, diabetes, Framingham Risk Score), APOE genotype, and cognition.</p><p><b>RESULTS: </b>A total of 2455 participants were included who were 63.0±8.4 years of age, 67.9% women, and 62.2% high school education or higher. CMBs prevalence was 11.7% (8.3% lobar only, 2.0% deep only, 1.4% mixed locations). After adjusting for age, sex, and education, a high Framingham Risk Score was associated with the presence of CMBs of all types, except lobar only. Prevalent stroke/transient ischemic attack was associated with higher likelihood of deep-only CMBs. For participants with cognitive impairment, the adjusted prevalence of mixed CMBs (2.2% versus 1.1%, =0.023) and deep-only+mixed CMBs (5.2% versus 3.1%, =0.010) was significantly higher compared with cognitively normal. Cognitive impairment was significantly associated with higher total CMB count (rate ratio, 1.46 [95% CI, 1.14-1.87]; =0.003). No significant associations were found between diabetes, APOE4, and any CMB type.</p><p><b>CONCLUSIONS: </b>High vascular risk scores, self-reported history of stroke/transient ischemic attack, and cognitive status were associated with a higher likelihood of CMBs, especially in deep regions.</p> |
| Year of Publication |
2026
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| Journal |
Journal of the American Heart Association
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| Volume |
15
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| Issue |
4
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| Number of Pages |
e041934
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| Date Published |
02/2026
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| ISSN Number |
2047-9980
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| DOI |
10.1161/JAHA.125.041934
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| Alternate Journal |
J Am Heart Assoc
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| PMCID |
PMC13055765
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| PMID |
41669981
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| Download citation |