Associated factors to insulin values in a population-based study in adolescents

Objectives: To identify factors that correlate with insulin values and to examine its independent associations among adolescents. Methods: A cross-sectional population-based study was conducted among adolescents aged 12-16,9 years old. A multi-stage stratified cluster random sampling method was employed. Anthropometric measurements and nutritional survey were performed, and fasting blood samples for insulin were obtained. Statistics: Multiple lineal regression. Results: 379 adolescents were included. Mean age was 14.08 ± 1.30 years. Factors associated with higher fasting insulin levels were puberty [ 4.55 (95% IC 0.42-8.69)], abdominal obesity [ 6.11 (95% IC 3.93-8.29)] and to be born small for gestational age (SGA) [ 7.45 (95% IC 2.47-12.44)]. It was observed a negative association between the regular intake of olive oil at home and insulin values [ -4.14 (95% IC -7.31- -0.98)]. Conclusions: Abdominal obesity and SGA were factors associated with higher fasting insulin values. In contrast, the regular intake of olive oil at home was an independent protective factor.Este estudio ha recibido subvención de la Consejería de Salud de la Junta de Andalucía (PI 0427/2007).YesObjetivo: Analizar los factores asociados con insulinemia en ayunas en población general adolescente. Métodos: Estudio epidemiológico observacional sobre una muestra poblacional de adolescentes (12-16,9 años) seleccionados mediante muestreo probabilístico polietápico. Se realizaron examen físico, antropometría, encuesta nutricional y se determinó insulinemia en ayunas. Estadística: regresión lineal múltiple. Resultados: Se incluyeron 379 adolescentes con edad media 14,08 ± 1,30 años. Se relacionaron con mayores cifras de insulinemia el desarrollo puberal [4,55 (95% IC 0,42-8,69)], obesidad abdominal [6,11(95% IC 3,93- 8,29)] y el antecedente de bajo peso para la edad gestacional (BPEG) [7,45 (95% IC 2,47-12,44)]. El consumo habitual de aceite de oliva en domicilio mostró una relación inversa con las cifras de insulinemia [-4,14 (95% IC -7,31- -0,98)]. Conclusión: Los factores de riesgo asociados a mayores cifras de insulinemia en ayunas fueron la obesidad abdominal y el antecedente de BPEG. El consumo habitual de aceite de oliva en domicilio fue un factor protector.201