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Title: Use of confirmatory factor analysis for the identification of new components of the metabolic syndrome: The role of plasminogen activator inhibitor-1 and Haemoglobin A1c
Authors: Boronat, M. 
Saavedra, P.
Varillas, V. F.
Nóvoa, F. J.
UNESCO Clasification: 32 Ciencias médicas
3205 Medicina interna
Keywords: Panel-Iii Criteria
Risk-Factors, et al
Issue Date: 2009
Journal: Nutrition, Metabolism and Cardiovascular Diseases 
Abstract: Background and aim: This study was aimed to identify additional components of metabolic syndrome from a set of cardiovascular risk markers.Methods and results: The homeostasis model assessment of insulin resistance (HOMA-IR), C-reactive protein, fibrinogen, plasminogen activator inhibitor-1 (PAI-1), von Willebrand factor, homocysteine, Haemoglobin A1c (HbA1c), and lipoprotein(a) were assessed in a population-based sample of 902 nondiabetic adult subjects. Those biomarkers that were associated with metabolic syndrome were evaluated by multiple regression analysis, along with other traditional cardiovascular risk factors. Confirmatory factor analysis (CFA) was used to test the hypothesis that both the established components of metabolic syndrome and the novel variables identified by the regression analysis were associated with a single underlying factor. HCMA-IR, PAI-1 and HbA1c were the only biomarkers independently related to metabolic syndrome. CFA validated a one-factor model that included these variables. Moreover, the indices of goodness of fit were better for this expanded model than those obtained for a previously validated one-factor model that was restricted to the conventional elements of the syndrome.Conclusions: These findings show that PAI-1 and HbA1c are singularly linked to metabolic syndrome. Their elevation is presumably another manifestation of the same pathophysiological mechanism that underlies the recognized traits of the syndrome.
ISSN: 0939-4753
DOI: 10.1016/j.numecd.2008.07.007
Source: Nutrition, Metabolism and Cardiovascular Diseases[ISSN 0939-4753],v. 19, p. 271-276
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