Læknablaðið - 01.07.2022, Blaðsíða 35

L ÆKNABL AÐIÐ 2022/108 355
R A N N S Ó K N
E N G L I S H S U M M A R Y
Karl Andersen1,2,3
Thor Aspelund1,3
Elías Freyr Guðmundsson3
Gunnar Sigurðsson4
Sigurður Sigurðsson3
Guðlaug Björnsdóttir1
Bolli Þórsson3
Gunnar Sigurðsson1,3
Þórður Harðarson1,3
Vilmundur Guðnason1,3
1Faculty of Medicine, School of Health Sciences,
University of Iceland, 2Division of Cardiovascular
Services, Landspitali University Hospital, Iceland,
3The Icelandic Heart Association, 4Skåne University
Hospital, Sweden.
Correspondence: Karl Andersen, andersen@landspitali.is
Key words: socioeconomic status, education, risk factors,
cardiovascular disease.
The relationship between lack of educational attainment, cardiovascular risk factors, atherosclerosis and coronary
artery disease
INTRODUCTION: Educational attainment is related to improved health and longevity. We
investigated the relationship between educational attainment and cardiovascular risk factors,
subclinical atherosclerosis, and incidence of coronary artery disease.
MATERIAL AND METHODS: The Reykjavik REFINE study is a population-based study recruiting
6616 subjects, 25-69 years of age from the greater Reykjavik area in 2005-2011. Baseline
measurements of cardiovascular risk factors were performed, and all participants had a
carotid ultrasound examination to detect subclinical atherosclerotic lesions. Clinical follow-up
of cardiovascular disease during a ten-year period was performed. Educational attainment was
related to clinical outcome measures.
RESULTS: The study population comprised of 3251 men and 3365 women. The proportion of the
study population with primary school education only was 20.1%, 31.2% had vocational training,
12.3% had high school education and 36.4% were university graduates. Traditional cardiovascular
risk factors were generally higher among subjects with primary school education only. Compared
to subjects with university education, the odds ratio of having severe atherosclerotic plaque was
1.84 (95% CI 1.40-2.43) among those with primary school education only and 1.49 (95% CI 1.16-1.91)
among subjects with vocational training. The subjects with high school or university education
were less likely to develop significant cardiovascular disease during the 10-year follow-up period.
CONCLUSION: Primary school and vocational training compared to university education are
associated with risk factors of atherosclerotic disease, subclinical carotid plaque, and incidence
of cardiovascular disease. The reason for this disparity remains to be clarified but socioeconomic
inequality related to less educational attainment might be involved.
doi 10.17992/lbl.2022.0708.701
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