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Risk of cardiovascular disease outcomes in primary care subjects with familial hypercholesterolaemia: A cohort study

Iyen, B; Qureshi, N; Kai, J; Akyea, RK; Leonardi-Bee, J; Roderick, P; Humphries, SE; (2019) Risk of cardiovascular disease outcomes in primary care subjects with familial hypercholesterolaemia: A cohort study. Atherosclerosis , 287 pp. 8-15. 10.1016/j.atherosclerosis.2019.05.017. Green open access

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Abstract

BACKGROUND AND AIMS: Familial hypercholesterolaemia (FH) is a known major cause of premature heart disease. However, the risks of atherosclerotic disease in other vascular regions are less known. We determined the risk of major cardiovascular disease (CVD) outcomes associated with clinical FH. // METHODS: In a retrospective cohort study (1 January, 1999 to 22 July, 2016), we randomly-matched 14,097 UK subjects with clinical FH diagnoses or characteristics (Simon-Broome definite or Dutch Lipid Clinic Score >8) to 42,506 subjects without FH by age, sex, general practice. We excluded those with CVD at baseline. Incident rates for coronary heart disease (CHD), stroke or transient ischaemic attack (TIA) and peripheral vascular disease (PVD) were estimated. Cox proportional hazards regression, stratified on matched-pairs, determined adjusted hazards ratios (HR) for incident CVD. // RESULTS: During follow-up (median 13.8 years), incidence rates (95% CI) of CVD (per 1000 person-years) were 25.6 (24.8-26.3) in FH and 2.9 (2.8-3.1) in non-FH subjects. The risk of CHD, stroke/TIA and PVD was higher in FH compared to non-FH subjects: CHD (HR 10.63, 95% CI 9.82-11.49), stroke/TIA (HR 6.74, 95% CI 5.84-7.77), PVD (HR 7.17, 95% CI 6.08-8.46). The risk of CVD was greater in those with FH characteristics (HR 13.52, 95% CI 12.48-14.65) than those with clinical diagnoses (HR 1.66, 95% CI 1.42-1.93). // CONCLUSIONS: In addition to the recognised increased risk of CHD, subjects with FH have greatly elevated risk of stroke/TIA and PVD. This emphasises need for early diagnosis and preventive interventions beyond CHD, to reduce CVD risk in these individuals.

Type: Article
Title: Risk of cardiovascular disease outcomes in primary care subjects with familial hypercholesterolaemia: A cohort study
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.atherosclerosis.2019.05.017
Publisher version: https://doi.org/10.1016/j.atherosclerosis.2019.05....
Language: English
Additional information: Copyright © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).
Keywords: Cardiovascular disease, Coronary heart disease, Epidemiology, Familial hypercholesterolaemia, Peripheral vascular disease, Stroke
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science
URI: https://discovery.ucl.ac.uk/id/eprint/10077625
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