Condujimos un estudio prospectivo descriptivo en la Clínica Anglo Americana, una institución privada que atiende a pacientes de estrato socio económico medio-alto en Lima metropolitana. El objetivo del estudio era determinar la frecuencia de hallazgos histológicos en biopsias hepáticas obtenidas por laparoscopía ó punción percutánea en pacientes con sobrepeso (IMC > 25 kg/m2) u obesos (IMC > 30 kg/m2), y evaluar la correlación con variables antropométricas como Indice de Masa Corporal (IMC), perímetro de cintura, historia de diabetes o dislipidemia y variables bioquímicas como glicemia, perfil lipídico, aminotransferasas y relación AST/ALT. Entre los años 2001 y 2006 se biopsiaron 50 pacientes, 29 con sobrepeso y 21 con obesidad. Dieciocho tuvieron esteatosis simple y 22 tuvieron Esteatohepatitis No alcohólica (NASH) (44%), de modo que 40 pacientes (80%) en total t...

Background: Our aim was to investigate the association of macroeconomic, human development, and demographic factors with different domains of physical activity and sitting time among South American adults. Methods: We used data from nationally representative samples in Argentina (n = 26,932), Brazil (n = 52,490), Chile (n = 3866), Colombia (n = 14,208), Ecuador (n = 19,883), Peru (n = 8820), and Uruguay (n = 2403). Our outcomes included leisure time (?150 min/week), transport (?10 min/week), occupational (?10 min/week), and total (?150 min/week) physical activity, as well as sitting time (?4 h/day), which were collected through self-reported questionnaires. As exposures, gross domestic product, total population, population density, and human development index indicators from the most updated national census of each country were used. Age and education were used as covariates. Multilevel ...