Factores de riesgo cardiovascular en adolescentes escolarizados (RIVACANGAS) / Cardiovascular risk factors in scholars (RIVACANGAS)

RESUMEN

Antecedentes y objetivo: La hipertensión arterial (HTA) en niños y adolescentes y las estrategias de prevención cardiovascular están poco estudiadas en ese grupo de edad. El objetivo del estudio es conocer los factores de riesgo cardiovascular (RCV) en una muestra de adolescentes. Sujetos y métodos: Estudio observacional transversal de una muestra de adolescentes de 12 a 17años (n=630), realizado entre octubre de 2014 y febrero de 2015 en 4 centros escolares de Cangas do Morrazo (Pontevedra). Variables sociodemográficas: edad, sexo, antecedentes personales y familiares de HTA y diabetes (DM). Variables antropométricas: índice de masa corporal (IMC) (kg/m2), perímetro de cintura (cm), índice cintura/talla (ICT); presión arterial sistólica (PAS) y diastólica (PAD) (mmHg). Resultados: Se seleccionaron 295 mujeres y 335 hombres. Edad media: 13,8±1,4años. El 68% sin patologías. Patologías relacionadas con RCV: hipercolesterolemia (7,1%), enfermedad cardiovascular (1,7%), HTA (0,8%), diabetes (0,3%). IMC medio: 22,0±3,8, mayor en hombres (22,4±3,8 vs 21,0±3,2; p<0,01). Sobrepeso (IMC>P85) 23,3%, mayor en mujeres (27,6% vs 19,7%; p<0,05). Obesidad: 7%. El 63,8% PAS>P90 y el 23,7% PAD>P90. El perímetro de cintura se correlaciona de forma positiva con la edad (r=0,1669; p<0,0001) y es mayor entre los hombres (75,4±10,9 vs 72,9±8,9; p<0,01). El 27,1% perímetro de cintura >P75 y el 7,5%, >P90. Un total de 84 (13,3%) adolescentes presentaron 2 factores de RCV (sobrepeso+otro). Conclusiones: Pese a su corta edad, más del 10% de los escolares tiene 2 factores de RCV. Más del 50% presentaron valores anormales de PAS, el 20%, sobrepeso, y casi el 25%, valores anormales de perímetro de cintura (AU)

ABSTRACT

Background and aim: The current guidelines for treatment of high blood pressure do not include any section dedicated to hypertension in children and adolescents or to cardiovascular disease (CVD) prevention strategies in that age group. Our study was aimed at identifying cardiovascular risk factors (CVRFs) in an adolescent sample. Subjects and methods: A cross-sectional study of a sample of adolescents aged 12 to 17years (n=630), conducted from October 2014 to February 2015 in four schools in Cangas do Morrazo (Pontevedra). Sociodemographic variables: age, sex, personal and family history of hypertension and diabetes (DM). Anthropometric variables: body mass index (BMI, kg/m2), waist circumference (WC, cm), waist/height index (WHI), blood pressure (mmHg). Results: The study sample consisted of 295 female and 335 male adolescents (mean age: 13.8±1.4). CVR-related conditions: hypercholesterolemia (7.1%), CVD (1.7%), hypertension (0.8%) and diabetes (0.3%). BMI (22.0±3,8) was higher in males (22.4±3.8 vs. 21.0±3.2; P<.01). Overweight was greater in females (27.6% vs. 19.7%; P<.05). Seven percent of subjects were obese, 63.8% had systolic BP >P90 and 23.7% had diastolic BP >P90. Waist circumference positively correlated with age (r=0.1669; P<.0001) and was greater in males (75.4±10.9 vs. 72.9±8.9; P<0.01); 27.1% of adolescents had a waist circumference >P75, and 7.5% >P90. Eighty-four (13.3%) adolescents had two CVRFs (overweight+another). Conclusions: Despite their young age, more than 10% of school children had two CVRFs. Abnormal SBP levels were seen in more than 50%, 20% were overweight, and only 75% had normal waist circumference values (AU)