El uso de los operadores booleanos, nos serán útiles para poder simplificar de una manera significante la cantidad de resultados sobre algún tema que deseemos investigar.
Los operadores que usaremos son : AND, OR , NOT , que en español significarían "y" , "o" , "no" , respectivamente.
El "y" cumple la función de intersección; el "o" de unión, y el "not" de negación.
Por lo tanto cuando queremos hacer una búsqueda como por ejemplo, artículos que traten sobre glucosa (glucose) o sobre insulina (insulin) pero no en enfermedades mentales (mental health), en este caso, usaremos los operadores "or" y "not" de la siguiente manera:
Glucose OR insulin NOT mental health
Y para poder obtener un resultado más favorable haremos empleo de los filtros, como elegir en español, que estén ublicados entre el 01-01-2013 hasta la fecha de hoy y que sean guías clínicas de texto completo gratuito.
Haciendo todos estos procedimientos, nos arrojará este resultado
De lo cual elegiré uno de los seis:
Que contendrá la siguiente información:
[Prevalence of obesity and cardiovascular risk factors in a group of paediatric patients with type 1 diabetes].
[Article in Spanish]
Abstract
OBJECTIVE:
To establish the prevalence of overweight-obesity and metabolic syndrome in a group of paediatric patients with type 1 diabetes (DM1), and to determine the effects on the lipoprotein profile and metabolic control.
METHODS:
A group of 115 patients (5-16 years) with DM1, and on intensive insulin therapy was studied. Weight, height, body mass index (BMI), waist circumference (WC), blood pressure (BP), glycosylated haemoglobin (HbA1c), total cholesterol (TC), HDL-cholesterol (HDL-c), LDL-cholesterol (LDL-c) and triglycerides (TG) were measured. The results were stratified by sex and age (< 11 years and ≥ 11 years).
RESULTS:
The prevalence of overweight and obesity (according to Hernández's reference values) was 28.69% and 18.26%, respectively, with female predominance in both cases. The prevalence of metabolic syndrome (according to the InternationalDiabetes Federation criteria) was 3.22%. 3.47% The WC adjusted for age and sex was > 90th percentile in 3.47% of cases, and 2.6% had a systolic BP ≥ 130 mmHg and/or a diastolic BP ≥ 85 mmHg. An HDL-c < 40 mg/dl was seen in 4.34%, and 2.6% had TG ≥ 150 mg/dl. Obese patients had lower HDL-c levels and higher LDL-c levels than non-obese subjects. There were no significant differences in HbA1c between patients with overweight-obesity and the rest.
CONCLUSIONS:
Overweight and obesity are common in paediatric patients with DM1. Nevertheless, the prevalence of metabolic syndrome and cardiovascular risk factors is lower than in adult patients. The group of diabetic children with obesity had a lipoprotein profile of cardiovascular risk.
Copyright © 2012 Asociación Española de Pediatría. Published by Elsevier España, S.L. All rights reserved.
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