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Publication Type
Conference Proceedings
Author, Analytic
Royal, Tamika ; Younger, Novie O.; Forrester, Terrence E. ; Cooper, Richard S.; Wilks, Rainford J.
Author Role
Presenters
Author Affiliation
Tropical Medicine Research Institute
Paper/Section Title
Simplifying measurement of cardiovascular risk in urban Jamaica: The role of multivariate methods
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Proceedings Title
2005 Proceedings of the American statistical association - Statistics in epidemiology section
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Place of Publication
Alexandria, Virginia
Publisher Name
American Statistical Association
Date of Publication
2005
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Notes
CD-ROM. Paper # 663
Abstract
In developing countries, invasive methods of quantifying cardiovascular risk can prove costly, thus prohibitive to many. As such, the authors seek evidence that cheaper, less invasive methods will identify adequately cardiovascular risk in the face of the expense associated with more complex methods. Both factor and principal components analyses were used to derive each of two new variables, one from body composition and another from physiological measurements. Graphical representation of the factor and principal component scores separated persons with hypertension or high waist circumference from those without. The mean values of the factor scores for persons at risk also were further removed from zero than were the mean scores for risk-free individuals. The 95% confidence intervals for the mean scores for risk-free and at-risk persons did not overlap. These data support the hypothesis that waist circumference or hypertension status are valid markers of cardiovascular risk as estimated by composite measures, including several other indices, and may be effective screening tools.....
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