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1.
J Hypertens ; 38(4): 618-624, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31790055

RESUMO

OBJECTIVE: The clinical utility of screening for pediatric metabolic syndrome (MetS) in children and adolescents is still controversial. We examined the performance of pediatric MetS vs. clustering of cardiovascular risk factors (which are the components of MetS) for predicting high carotid intima-media thickness (cIMT) in children and adolescents. METHODS: Participants included 2427 children and adolescents aged 6-17 years from population-based studies in three countries (Brazil, China and Italy). Pediatric MetS was defined using either the modified National Cholesterol Education Program Adult Treatment Panel III criteria or the modified International Diabetes Federation criteria. Clustering of cardiovascular risk factors was calculated as the sum of five components of MetS (i.e. central obesity, elevated blood pressure, elevated triglycerides, reduced HDL-cholesterol and elevated fasting blood glucose). High cIMT was defined as cIMT at least 95th percentile values for sex and age developed from European children. RESULTS: Presence of one, two or at least three cardiovascular risk factors (using the National Cholesterol Education Program Adult Treatment Panel III criteria), as compared with none, was associated with gradually increasing odds of high cIMT [odds ratios (95% confidence intervals): 1.60 (1.29-1.99), 2.89 (2.21-3.78) and 4.24 (2.81-6.39), respectively]. High cIMT was also associated with presence (vs. absence) of MetS (odds ratio = 2.88, 95% confidence interval = 1.95-4.26). However, clustering of cardiovascular risk factors predicted high cIMT markedly better than MetS (area under the curve of 0.66 vs. 0.54, respectively). Findings were similar using the International Diabetes Federation criteria for pediatric MetS. CONCLUSION: In children and adolescents, a graded score based on five cardiovascular risk factors (used to define MetS) predicted high cIMT markedly better than MetS. These findings do not support the clinical utility of MetS for screening youth at increased cardiovascular risk, as expressed in this study by high cIMT.


Assuntos
Doenças Cardiovasculares/etiologia , Espessura Intima-Media Carotídea , Síndrome Metabólica/complicações , Obesidade Infantil/complicações , Adolescente , Glicemia/metabolismo , Brasil , Doenças Cardiovasculares/sangue , Criança , China , Colesterol/sangue , Análise por Conglomerados , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Hipertensão/complicações , Itália , Masculino , Síndrome Metabólica/sangue , Síndrome Metabólica/fisiopatologia , Obesidade Infantil/fisiopatologia , Triglicerídeos/sangue
2.
Diabetes Care ; 42(1): 119-125, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30420475

RESUMO

OBJECTIVE: It has been argued that metabolically healthy obesity (MHO) does not increase cardiovascular disease (CVD) risk. This study examines the association of MHO with carotid intima-media thickness (cIMT), a proxy of CVD risk, in children and adolescents. RESEARCH DESIGN AND METHODS: Data were available for 3,497 children and adolescents aged 6-17 years from five population-based cross-sectional studies in Brazil, China, Greece, Italy, and Spain. Weight status categories (normal, overweight, and obese) were defined using BMI cutoffs from the International Obesity Task Force. Metabolic status (defined as "healthy" [no risk factors] or "unhealthy" [one or more risk factors]) was based on four CVD risk factors: elevated blood pressure, elevated triglyceride levels, reduced HDL cholesterol, and elevated fasting glucose. High cIMT was defined as cIMT ≥90th percentile for sex, age, and study population. Logistic regression model was used to examine the association of weight and metabolic status with high cIMT, with adjustment for sex, age, race/ethnicity, and study center. RESULTS: In comparison with metabolically healthy normal weight, odds ratios (ORs) for high cIMT were 2.29 (95% CI 1.58-3.32) for metabolically healthy overweight and 3.91 (2.46-6.21) for MHO. ORs for high cIMT were 1.44 (1.03-2.02) for unhealthy normal weight, 3.49 (2.51-4.85) for unhealthy overweight, and 6.96 (5.05-9.61) for unhealthy obesity. CONCLUSIONS: Among children and adolescents, cIMT was higher for both MHO and metabolically healthy overweight compared with metabolically healthy normal weight. Our findings reinforce the need for weight control in children and adolescents irrespective of their metabolic status.


Assuntos
Espessura Intima-Media Carotídea , Obesidade Metabolicamente Benigna/epidemiologia , Sobrepeso/epidemiologia , Obesidade Infantil/epidemiologia , Adolescente , Pressão Sanguínea , Brasil , Criança , China , Estudos Transversais , Feminino , Seguimentos , Grécia , Nível de Saúde , Humanos , Itália , Modelos Logísticos , Masculino , Obesidade Metabolicamente Benigna/sangue , Sobrepeso/sangue , Obesidade Infantil/sangue , Prevalência , Fatores de Risco , Espanha
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