ABSTRACT
Studies of cholesterol levels in a population of Gran Buenos Aires was made in 1983, 1988, 1993 and 1996, and the Argentinian alimentary habits in this period were analyzed. It was noticed a change in food consumption, with reduction in the intake of fatty foods, such as meat, butter, milk, and other dairy products, with the concomitant increment in fiber rich products and oil, meat and dairy products reduced in fats. Changes in serum cholesterol level were analysed in 3051 persons along 1983-1996. They were grouped according their age and sex: A) 1-6 years old, B) 6-12, C) 12-17, D) 17-30, E) 30-60, F) 60-80. It was observed an increment in cholesterol level with age. For each group during the first 10 years of study was noticed a constant decrease in total cholesterol being higher in women than in men and according with the alimentary changes. Group D in 1983 became group E in 1993, maintained their cholesterol level along 10 years of life, being lower than the corresponding E group of 1983, while the older ones did not present differences. Values of cholesterol/cholesterol-HDL index over 6.5 correlate with a high incidence in cardiovascular diseases. The 40 of the population studied during 1993 and 1996 was evaluated, and the maximum average value found was 4.90. These results suggest that reduction in fat intake and diversification in food consumption during this period has contributed to decrease cholesterol levels and cholesterol/cholesterol-HDL index, particularly in younger than 30 years old and women, contributing to reduce metabolical cardiovascular diseases.
Subject(s)
Humans , Male , Female , Cholesterol , Feeding Behavior , Suburban Health , Adolescent , Adult , Aged , Aged, 80 and over , Argentina , Child , Child, Preschool , Cholesterol, HDL , Cardiovascular Diseases/etiology , Infant , Middle Aged , Risk FactorsABSTRACT
Se estudió el grado de parasitosis intestinal en una población del Gran Buenos Aires, donde están representadas las cinco clases sociales de Grafar. Las aguas de consumo presentaban contaminación ya que excedían la concentración máxima permitida de nitratos y nitritos (40 mg/l), pudiendo vehiculizar bacterias, parásitos y virus. Las parasitosis se analizaron mediante los clásicos métodos directos. La población se dividió en dos grupos: A: clase social alta, media alta y media; B: clase media baja y baja. Los dos grupos extraían las aguas de consumo del mismo acuífero. Se obtuvieron los siguientes resultados: Grupo A: de 2.620 casos, el 79% estaba parasitado: 56% por Giardia lamblia, 19% por Enterobius vermicularis, 4% por otros parásitos y 21% negativos. El mayor porcentaje de giardiasis se observó en el subgrupo de lactantes y preescolares, disminuyendo en los escolares y adultos. La oxyuriasis fue máxima en el subgrupo de escolares. En el grupo B se estudiaron 320 niños (0 a 13 años), el 70% estaba parasitado: 35% por Giardia lamblia, 29% por Enterobius vermicularis, 6% por otros parásitos y 30% negativos. Se destaca la alta incidencia de giardiasis en todos los grupos estudiados, parásito que al interferir en la absorción de nutrientes coloca a la población, de todos los niveles socioeconómicos en situación de riesgo nutricional