These patients received treatment randomly with paliperidone ER , aripiprazole and ziprasidone and were assessed at baseline , 13 , 26 and 52 weeks , respectively with Positive and Negative Syndrome Scale ( PANSS ) , 7-item Clinical Global Impressions-Severity ( CGI-S ) , anthropometric ( weight , body mass index and waist circumference ) and metabolic ( fasting blood glucose , HbA1c , cholesterol , high density lipoproteins ( HDL ) , low density lipoproteins and triglycerides ) measures .