Left ventricular hypertrophy and mortality in ethnic minority groups in the UK: e-ECHOES study.



Shantsila, Eduard ORCID: 0000-0002-2429-6980, Shantsila, Alena, Williams, Nefyn, Lip, Gregory YH and Gill, Paramjit S
(2023) Left ventricular hypertrophy and mortality in ethnic minority groups in the UK: e-ECHOES study. Journal of hypertension, 42 (1). pp. 95-100.

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Abstract

<h4>Objectives</h4>Hypertension is the key modifiable cardiovascular risk factor but is underdiagnosed, and its scale in South Asian and African-Caribbean communities is unknown. Left ventricular hypertrophy (LVH) is a measure of target organ damage in uncontrolled hypertension. The study assesses LVH prevalence in South Asian and African-Caribbean communities and its impact on mortality.<h4>Method</h4>This study is based on the large prospective UK community Ethnic-Echocardiographic Heart of England Screening Study (E-ECHOES, age ≥45 years). Left ventricular mass index (LVMI) was calculated using echocardiography to establish LVH. The predictive value of LVH all-cause and cardiovascular mortality was assessed using Cox regression.<h4>Results</h4>The study included 3200 South Asians (age 59 ± 10 years, 52% women, 45% had a history of hypertension, 5.8 ± 1.0-year follow-up). LVH was found in 1568 (49%), of whom 45% did not have hypertension diagnosis. On Cox regression, LVH was independently associated with all-cause mortality [hazard ratio 1.38, 95% confidence interval (95% CI) 1.01-1.88], cardiovascular mortality (hazard ratio 2.64, 95% CI 1.21-3.73). The projected overall hypertension prevalence was 82%, undiagnosed hypertension prevalence 37%. The study included 1858 African-Caribbeans (age 62 ± 12, 45% women, 45% had history of hypertension, 5.1 ± 0.9-year follow-up). LVH was found in 1186 (64%), of whom 32% did not have hypertension diagnosis. LVH was borderline associated with all-cause mortality (hazard ratio 1.57, 95% CI 1.01-2.44), but not cardiovascular mortality (hazard ratio 1.82, 95% CI 0.80-4.16). The projected overall hypertension prevalence was 78.5%, and undiagnosed hypertension prevalence was 20.8%.<h4>Conclusion</h4>UK South Asians and African-Caribbeans have a high prevalence of hypertension, which is often underdiagnosed and poorly controlled.

Item Type: Article
Uncontrolled Keywords: Humans, Hypertrophy, Left Ventricular, Hypertension, Prevalence, Prospective Studies, Minority Groups, Aged, Middle Aged, England, Female, Male, Ethnic and Racial Minorities, Ethnicity
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Population Health
Depositing User: Symplectic Admin
Date Deposited: 22 Sep 2023 09:45
Last Modified: 08 Dec 2023 13:30
DOI: 10.1097/hjh.0000000000003561
Open Access URL: http://10.0.4.73/HJH.0000000000003561
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3172965