Jejunoileal BypassHyperlipidemiasMetabolic Syndrome XSyndromeObesityRisk FactorsInsulin ResistanceWaist CircumferencePrevalenceBlood GlucoseBody Mass IndexTriglyceridesObesity, AbdominalDown SyndromeCardiovascular DiseasesCholesterol, HDLCross-Sectional StudiesDyslipidemiasDiabetes Mellitus, Type 2HypertriglyceridemiaAdiponectinBlood PressureFatty LiverMetabolic DiseasesBiological MarkersLipids