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The International Childhood Cardiovascular Cohort (i3C) consortium outcomes study of childhood cardiovascular risk factors and adult cardiovascular morbidity and mortality: Design and recruitment

Sinaiko, AR, Jacobs, DR, Woo, JG, Bazzano, L, Burns, T, Hu, T, Juonala, M, Prineas, R, Raitakari, O, Steinberger, J, Urbina, E, Venn, A ORCID: 0000-0001-7090-1398, Jaquish, C and Dwyer, T 2018 , 'The International Childhood Cardiovascular Cohort (i3C) consortium outcomes study of childhood cardiovascular risk factors and adult cardiovascular morbidity and mortality: Design and recruitment' , Contemporary Clinical Trials, vol. 69 , pp. 55-64 , doi: 10.1016/j.cct.2018.04.009.

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Abstract

Although it is widely thought that childhood levels of cardiovascular (CV) risk factors are related to adult CV disease, longitudinal data directly linking the two are lacking. This paper describes the design and organization of the International Childhood Cardiovascular Cohort Consortium Outcomes Study (i3C Outcomes), the first longitudinal cohort study designed to locate adults with detailed, repeated, childhood biological, physical, and socioeconomic measurements and a harmonized database. I3C Outcomes uses a Heart Health Survey (HHS) to obtain information on adult CV endpoints, using mail, email, telephone, and clinic visits in the United States (U.S.) and Australia and a national health database in Finland. Microsoft Access, REsearch Data Capture (REDCap) (U.S.), LimeSurvey (Australia), and Medidata™ Rave data systems are used to collect, transfer and organize data. Self-reported CV events are adjudicated via hospital and doctor-released medical records. After the first two study years, participants (N = 10,968) were more likely to be female (56% vs. 48%), non-Hispanic white (90% vs. 80%), and older (10.4 ± 3.8 years vs. 9.4 ± 3.3 years) at their initial childhood study visit than the currently non-recruited cohort members. Over 48% of cohort members seen during both adulthood and childhood have been found and recruited, to date, vs. 5% of those not seen since childhood. Self-reported prevalences were 0.7% Type 1 Diabetes, 7.5% Type 2 Diabetes, 33% hypertension, and 12.8% CV event. 32% of CV events were judged to be true. I3C Outcomes is uniquely able to establish evidence-based guidelines for child health care and to clarify relations to adult CV disease.

Item Type: Article
Authors/Creators:Sinaiko, AR and Jacobs, DR and Woo, JG and Bazzano, L and Burns, T and Hu, T and Juonala, M and Prineas, R and Raitakari, O and Steinberger, J and Urbina, E and Venn, A and Jaquish, C and Dwyer, T
Keywords: adult cardiovascular disease, childhood cardiovascular risk factors, collaborative cohort study, heart health survey, longitudinal cardiovascular risk study
Journal or Publication Title: Contemporary Clinical Trials
Publisher: Elsevier Inc.
ISSN: 1551-7144
DOI / ID Number: 10.1016/j.cct.2018.04.009
Copyright Information:

© 2018 Elsevier Inc

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