[Diagnostic concordance between seven definitions of metabolic syndrome in overweight and obese adults]. / Concordancia diagnóstica entre siete definiciones de síndrome metabólico en adultos con sobrepeso y obesidad.

OBJECTIVES: The aim of this study was to determine the level of diagnostic concordance between seven definitions of metabolic syndrome (MS) in a group of overweight and obese adults. MATERIALS AND METHODS: 350 subjects aged from 19 to 70 years were recruited for study from a clinic for overweight and obese subjects. The definitions of MS used were those given by the WHO (World Health Organization), EGIR (European Group for the Study of Insulin Resistance), NCEP- ATPIII (Adult Treatment Panel), AHA/NHLBI (American Heart Association), IDF (International Diabetes Federation), and JIS (Joint Interim Statement) as well as the Szabo criteria. Concordance between the definitions was calculated with the Kappa coefficient. Insulin resistance (IR) was assessed using the HOMA-IR index. RESULTS: According to the Szabo, WHO, EGIR, NCEP-ATPIII, AHA/NHLBI, IDF, and JIS criteria, MS frequency was 74.3%, 42.0%, 46.8%, 56.0%, 52.9%, 58.6%, and 58.6%, respectively. The concordance between the Szabo and AHA/NHLBI criteria was 0.559, while the Kappa coefficient between the Szabo criteria and the rest of the guides (NCEP-ATPIII, IDF, and JIS) was from 0.612 to 0.657, respectively. The concordance of the WHO with the EGIR was 0.602, but it was between 0.358 and 0.422 with the other guidelines. IR was distributed similarly in all guidelines. CONCLUSIONS: There is a considerable concordance between the NCEP-ATPIII, IDF, and JIS guidelines and the Szabo criteria. The Szabo criteria could be an option for the active surveillance of MS in populations.

Concordancia diagnóstica entre siete definiciones de síndrome metabólico en adultos con sobrepeso y obesidad / Diagnostic concordance between seven definitions of metabolic syndrome in overweight and obese adults

RESUMEN Objetivos El objetivo del presente estudio fue determinar el grado de concordancia diagnóstica entre siete definiciones de síndrome metabólico (SM) en un grupo de adultos con sobrepeso y obesos. Material y Métodos Se estudiaron 350 sujetos con edades comprendidas entre 19 y 70 años que fueron reclutados consecutivamente de una consulta para sujetos con sobrepeso y obesidad. Se emplearon las definiciones de SM según OMS (Organización Mundial de la Salud), EGIR (Grupo Europeo para el estudio de la resistencia a la insulina), NCEP-ATPIII (Panel de Tratamiento de Adultos), AHA/NHLBI (Asociación Americana del Corazón), IDF (Federación Internacional de Diabetes), JIS (Declaración provisional conjunta), así como los criterios de Szabo. La concordancia entre las definiciones fue calculada con el coeficiente Kappa. La resistencia a la insulina (RI) fue evaluada mediante el índice HOMA. Resultados Según los criterios de Szabo, OMS, EGIR, NCEP-ATPIII, AHA/NHLBI, IDF y la JIS, la frecuencia de SM fue del 74,3%, 42,0%, 46,8%, 56,0%, 52,9%, 58,6% y 58,6%, respectivamente. La concordancia entre los criterios de Szabo y la AHA/NHLBI fue de 0,559, mientras que el coeficiente kappa entre los criterios de Szabo, y el resto de las guías (NCEP-ATPIII, IDF, JIS) fue de 0,612 a 0,657, respectivamente. La concordancia de la OMS con las demás guías fue entre 0,358 y 0,422, pero con la EGIR la concordancia fue de 0,602. La RI se distribuyó de manera similar en todas las guías. Conclusiones Existe una considerable concordancia entre las guías NCEP-ATPIII, IDF, JIS y el SM según criterios de Szabo. El SM según criterios de Szabo pudiera ser otra alternativa para la pesquisa activa del SM en poblaciones.

ABSTRACT Objectives The aim of this study was to determine the level of diagnostic concordance between seven definitions of metabolic syndrome (MS) in a group of overweight and obese adults. Materials and Methods 350 subjects aged from 19 to 70 years were recruited for study from a clinic for overweight and obese subjects. The definitions of MS used were those given by the WHO (World Health Organization), EGIR (European Group for the Study of Insulin Resistance), NCEP- ATPIII (Adult Treatment Panel), AHA/NHLBI (American Heart Association), IDF (International Diabetes Federation), and JIS (Joint Interim Statement) as well as the Szabo criteria. Concordance between the definitions was calculated with the Kappa coefficient. Insulin resistance (IR) was assessed using the HOMA-IR index. Results According to the Szabo, WHO, EGIR, NCEP-ATPIII, AHA/NHLBI, IDF, and JIS criteria, MS frequency was 74.3%, 42.0%, 46.8%, 56.0%, 52.9%, 58.6%, and 58.6%, respectively. The concordance between the Szabo and AHA/NHLBI criteria was 0.559, while the Kappa coefficient between the Szabo criteria and the rest of the guides (NCEP-ATPIII, IDF, and JIS) was from 0.612 to 0.657, respectively. The concordance of the WHO with the EGIR was 0.602, but it was between 0.358 and 0.422 with the other guidelines. IR was distributed similarly in all guidelines. Conclusions There is a considerable concordance between the NCEP-ATPIII, IDF, and JIS guidelines and the Szabo criteria. The Szabo criteria could be an option for the active surveillance of MS in populations.

Effect of Diamel in patients with metabolic syndrome: a randomized double-blind placebo-controlled study.

BACKGROUND: The aim of the present study was to determine whether the administration of Diamel, marketed as a food supplement by Catalysis Laboratories (Madrid, Spain) could improve any of the components of metabolic syndrome (MS), as well as insulin resistance and sensitivity. METHODS: In all, 100 patients with MS (19-70 years of age) who satisfied the World Health Organization criteria for MS were included in the study. Participants were randomly assigned to receive either oral Diamel or a placebo (while maintaining a diet appropriate to their weight and physical activity) at a dose of two capsules before each of the three main meals each day for 1 year. Anthropometric indices, blood pressure, fasting plasma glucose, lipid profile, insulin, creatinine, and uric acid (UA) were determined. Insulin resistance (IR) was assessed and three indirect indices were used to calculate insulin sensitivity (IS). RESULTS: Compared with placebo, Diamel improved fasting insulin concentrations, IS, and IR and reduced UA concentrations from 6 months until the end of treatment (P < 0.05 for all). In addition, after 12 months treatment with Diamel, significant changes from baseline were seen for mean fasting insulin (P < 0.05), UA (P < 0.05), IR (P < 0.001), and IS (P < 0.001), whereas no such changes were seen in the placebo-treated group. Improvements were noted in body mass index, IR, and IS in both groups. CONCLUSIONS: Long-term Diamel treatment, combined with lifestyle changes, was beneficial for IR and IS, and reduced serum UA levels in patients with MS.