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Type: Journal article
Title: Accuracy and adequacy of waist circumference cut-off points currently recommended in Brazilian adults
Author: Vianna, C.
Da Silva Linhares, R.
Bielemann, R.
MacHado, E.
González-Chica, D.
Matijasevich, A.
Gigante, D.
Da Silva Dos Santos, I.
Citation: Public Health Nutrition, 2014; 17(4):861-869
Publisher: Cambridge University Press
Issue Date: 2014
ISSN: 1368-9800
Statement of
Carolina Avila Vianna, Rogerio da Silva Linhares, Renata Moraes Bielemann, Eduardo Coelho Machado, David Alejandro Gonzalez-Chica, Alicia Manitto Matijasevich, Denise Petrucci Gigante, and Ina da Silva dos Santos
Abstract: OBJECTIVE: To evaluate the adequacy and accuracy of cut-off values currently recommended by the WHO for assessment of cardiovascular risk in southern Brazil. DESIGN: Population-based study aimed at determining the predictive ability of waist circumference for cardiovascular risk based on the use of previous medical diagnosis for hypertension, diabetes mellitus and/or dyslipidaemia. Descriptive analysis was used for the adequacy of current cut-off values of waist circumference, receiver operating characteristic curves were constructed and the most accurate criteria according to the Youden index and points of optimal sensitivity and specificity were identified. SETTING: Pelotas, southern Brazil. SUBJECTS: Individuals (n 2112) aged ≥20 years living in the city were selected by multistage sampling, since these individuals did not report the presence of previous myocardial infarction, angina pectoris or stroke. RESULTS: The cut-off values currently recommended by WHO were more appropriate in men than women, with overestimation of cardiovascular risk in women. The area under the receiver operating characteristic curve showed moderate predictive ability of waist circumference in men (0.74, 95% CI 0.71, 0.76) and women (0.75, 95% CI 0.73, 0.77). The method of optimal sensitivity and specificity showed better performance in assessing the accuracy, identifying the values of 95 cm in men and 87 cm in women as the best cut-off values of waist circumference to assess cardiovascular risk. CONCLUSIONS: The cut-off values currently recommended for waist circumference are not suitable for women. Longitudinal studies should be conducted to evaluate the consistency of the findings.
Keywords: Waist circumference; receiver operating characteristic curve; sensitivity and specificity; adults
Rights: © The Authors 2013
DOI: 10.1017/S1368980013000529
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