Nutritional StatusNutrition DisordersMalnutritionNutrition AssessmentAnthropometryChild Nutrition DisordersProtein-Energy MalnutritionNutritional Physiological PhenomenaChild Nutritional Physiological PhenomenaBody WeightBody HeightDietInfant Nutrition DisordersSerum AlbuminThinnessBody Mass IndexHealth StatusCross-Sectional StudiesEnergy IntakeSkinfold ThicknessSocioeconomic FactorsSocial ClassBody Composition