RESUMEN
OBJECTIVE: To evaluate the prevalence of 25-hydroxyvitamin D insufficiency (25OHD<20 ng/mL) and to develop a predictive model for this status. METHODS: This is a cross-sectional study including 908 community-dwelling older subjects, 18% (158) of which were randomly selected to be a "test" sample, with the remaining (750) composing a "development" sample. A radioimmunoassay technique was used to measure 25OHD levels. Anthropometrical data, information about lifestyle habits and co-morbidities were obtained. Multiple logistic regression models were created. An Index Risk of Vitamin D Insufficiency (IRVDI) was designed and subsequently validated. The performance of this tool was assessed through ROC analysis. RESULTS: The prevalence of 25OHD<20 ng/mL was of 58.0% (CI 95% 51.6-64.6). The clinical independent factors for 25OHD<20 ng/mL were female gender (OR=2.16; 95%CI 1.13-4.13; p=0.020), diabetes (OR=1.84; 95%CI 1.23-2.74; p=0.003) and season (winter/spring) (OR=3.63, 95%CI 2.62-4.88; p<0.001). After statistical adjustments, the IRVDI was able to identify older people at risk for vitamin D insufficiency with a sensitivity of 55.9%, specificity 72.3% and ROC area of 0.685 (p<0.001). CONCLUSIONS: Our results suggest that vitamin D insufficiency is common among Brazilian community-dwelling elderly. Female gender, diabetes and the season (winter/spring) were the important parameters that predicted this status. The clinical use of these parameters can be help to design and target appropriate public health interventions. The IRVDI is a convenient tool for the selection of older people at risk for vitamin D insufficiency.
Asunto(s)
Evaluación Geriátrica , Deficiencia de Vitamina D/epidemiología , Vitamina D/análogos & derivados , Vitaminas/sangre , Anciano , Brasil/epidemiología , Estudios Transversales , Diabetes Mellitus/sangre , Femenino , Humanos , Estilo de Vida , Modelos Logísticos , Masculino , Modelos Biológicos , Oportunidad Relativa , Prevalencia , Curva ROC , Características de la Residencia , Medición de Riesgo , Estaciones del Año , Factores Sexuales , Vitamina D/sangre , Deficiencia de Vitamina D/sangre , Deficiencia de Vitamina D/etiologíaRESUMEN
La conducta de atracón, el incremento en su frecuencia que incide en el riesgo asociado a trastorno alimentario, así como su relación con sobrepeso y obesidad constituyen un problema de salud vigente a nivel nacional e internacional. El objetivo de la investigación fue explorar, identificar y describir los factores de riesgo que se interrelacionan y explican la Conducta de Atracón, poniendo especial interés en las similitudes y diferencias inherentes a muestras de tres diferentes países de habla hispana (México, España y Argentina). La muestra agrupó N = 258 mujeres: mexicanas (n = 85, Medad = 16.18, DE = 0.99); argentinas (n = 75, Medad = 17.00, DE = 1.24) y españolas (n = 98, Medad = 17.00, DE = 1.36). Se utilizaron instrumentos psicométricamente adecuados. Entre los resultados de mayor interés se encontró que el factor comer por compensación psicológica obtiene el peso β más alto en cada grupo y el análisis de senderos confirma su importancia intercultural. El carácter emocional de dicho factor, su aportación a la prevención y su poder predictivo forman parte de la discusión.
The increased frequency of binge eating behavior, and its relationship to overweight and obesity, expressed a national and international real health problem. The objective of this study was to explore, identify and describe the risk factors that interrelate and explain Binge Eating Behavior, paying special attention to the similarities and differences inherent to samples from three different Spanish-speaking countries (Mexico, Spain and Argentina). The total sample consisted of N = 258 women: Mexican (n = 85, Mage = 16.18, SD = 0.99); Argentine (n = 75, Mage = 17.00, SD = 1.24) and Spanish (n = 98, Mage = 17.00, SD = 1.36). The instruments used showed a good psychometrical properties. The eating for psychological compensation factor gets the highest β weight in the three groups and its intercultural relevance is confirmed by the Path Analysis. It is discussed the emotional nature of the eating for psychological compensation factor, its contribution to prevention, and its predictive power.