Study in Schizophrenic In-patients Treated With Quetiapine Prolong or Oral Risperidone at Flexible Dose

Change From Baseline in Clinical Global Impression, Severity Scale (CGI-S) and in Absolute Clinical Global Impression, Improvement Scale (CGI-I) (Performed 4 Times/ 3 Weeks)

The CGI change was to be measured by calculating the difference between baseline score and 3 week's score. CGI-S Score of 1 = no illness to score of 7 = extremely ill. CGI-I Score of 1 =very much improved since the initiation of treatment to 7=very much worse since the initiation of treatment

Time frame: baseline and 3 weeks

Change From Baseline in Overt Aggression Scale (OAS) (Performed 6 Times/ 3 Weeks)

The Overt Agression Scale (OAS) change was to be measured by calculating the difference between baseline score and 3 week's score. Score between 1 and 16 verbal aggression (OAS 1, score 1-4), physical aggression against objects (OAS 2, score 5-8), physical aggression against self (OAS 3, score 9-11) and physical aggression against other people (OAS 4, score 12-16).

Time frame: baseline and 3 weeks

Change From Baseline in Total Positive and Negative Symptoms Scale (PANSS Score) (Performed 5 Times/ 3 Weeks)

PANSS score change was to be measured by calculating the difference between baseline score and 3 week's score. The PANSS consists of 7 positive and 11 negative items each with associated descriptors. Each descriptor is rated on a 7 point scale from 1=(absence of any symptom) to 7=(extremely severe symptoms).