The SWN-K is comprised of 20 questions, rated on a 6-point scale from 1 (not at all) to 6 (very much). Scores range from 20 to 120, with higher scores implying higher subjective well-being. A responder is defined as a subject with an increase of 10 points or 20% from baseline in SWN-K total score (non-inferiority limit of -9.7% in responder rate)

For Per Protocol at Month 6 analysis, the difference from Randomized analysis (395) was no study drug (4); SWN-K score missing (12), and did not meet inclusion criteria (169) for Quetiapine XR. For Risperidone, the difference from Randomized analysis (403) was no study drug (1); SWN-K score missing (10), and did not meet inclusion criteria (160).

The SWN-K is comprised of 20 questions, each of which is rated using a 6-point scale ranging from 1 (not at all) to 6 (very much). Possible scores range from 20 to 120, with higher scores implying higher subjective well-being.

For Per Protocol at Month 12 analysis, the difference from Randomized analysis (395) was no study drug (4); SWN-K score missing (12), and did not meet inclusion criteria (206) for Quetiapine XR. For Risperidone, the difference from Randomized analysis (403) was no study drug (1); SWN-K score missing (10), and did not meet inclusion criteria (201).

The SWN-K is comprised of 20 questions, each of which is rated using a 6-point scale ranging from 1 (not at all) to 6 (very much). Possible scores range from 20 to 120, with higher scores implying higher subjective well-being.

For Per Protocol at Month 12 analysis, the difference from Randomized analysis (395) was no study drug (4); SWN-K score missing (12), and did not meet inclusion criteria (206) for Quetiapine XR. For Risperidone, the difference from Randomized analysis (403) was no study drug (1); SWN-K score missing (10), and did not meet inclusion criteria (201).

The SWN-K total score is the sum of 5 subscores (4 questions each): physical functioning, social integration, mental functioning, self-control, and emotional regulation. The subscores are rated using a 6-point scale (the higher the grade, the better the response). Possible subscores range from 4 to 24.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The SWN-K total score is the sum of 5 subscores (4 questions each): physical functioning, social integration, mental functioning, self-control, and emotional regulation. The subscores are rated using a 6-point scale (the higher the grade, the better the response). Possible subscores range from 4 to 24.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The SWN-K total score is the sum of 5 subscores (4 questions each): physical functioning, social integration, mental functioning, self-control, and emotional regulation. The subscores are rated using a 6-point scale (the higher the grade, the better the response). Possible subscores range from 4 to 24.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The SWN-K total score is the sum of 5 subscores (4 questions each): physical functioning, social integration, mental functioning, self-control, and emotional regulation. The subscores are rated using a 6-point scale (the higher the grade, the better the response). Possible subscores range from 4 to 24.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The SWN-K total score is the sum of 5 subscores (4 questions each): physical functioning, social integration, mental functioning, self-control, and emotional regulation. The subscores are rated using a 6-point scale (the higher the grade, the better the response). Possible subscores range from 4 to 24.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Remission was defined as a SWN-K total score greater than or equal to 80. The reported population is participants who showed remission over, time from baseline to Month 12

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

For the CGI-SCH overall severity of illness, the score ranged from 1 (normal, not ill) to 7 (among the most severely ill). CGI-SCH score was divided into 3 classes: worsening (change score>0), stable (change score=0) and improved (change score<0). Change from baseline in CGI-SCH overall severity of illness in number of participants with CGI-SCH overall severity score improvement.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

For the CGI-SCH (Clinical Global Impression-Schizophrenia severity of illness scale) overall severity of illness, the score ranged from 1 (normal, not ill) to 7 (among the most severely ill). Change from baseline in CGI-SCH score was divided into 3 classes: worsening (change score>0), stable (change score=0) and improved (change score<0).

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The CDSS total score is the sum of 9 questions and ranges from 0 to 27. The higher the score, the more severe are the symptoms.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Relapse is defined as at least one increase of greater than or equal to 2 points on the CGI-SCH overall severity score during the treatment period or at least one hospitalization due to psychiatric disorders during the treatment period.

The Reported population is participants who showed relapse over time, from baseline to Month 12.

The Euro Quality of Life - 5 dimension index (EQ-5D) is the result of the application of a formula that essentially attaches values (also called weights) to each of the levels (no, some, or heavy problems) in each dimension (mobility, self-care, usual activities, pain/discomfort, anxiety/depression). These weights are issued from a representative sample of the general population. The total possible maximum value was 1 (healthy life) and the minimum value was 0 (death).

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Stable State was defined as having the same status in occupational and residential status as at Baseline.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Workers and students are defined from the modified vocational status index excluding subjects "Retired" or "Unemployed, whether or not expected to work".

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

All hospitalizations due to psychiatric disorders during the study (i.e. from Visit 1 to Termination date + 30 days) in inpatients units, in emergency wards, and in day clinics.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Unscheduled visits due to worsening of schizophrenia, dose change or adverse event including the hospitalizations due to psychiatric disorders during the study (i.e. from Visit 1 to Termination date + 30 days) in inpatients units, in emergency wards and in day clinics.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The number of participants who were taking at least 1 antidepressant at Month 12. Antidepressants are all concomitant medications classified in the Anatomical Therapeutic Chemical(ATC)Subgroup "N06-Antidepressants".

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Other psychotropic medications include antiepileptics, anti-parkinson drugs, antipsychotics, and antidepressants.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

The ITT analysis set at Month 12 is presented. For Quetiapine XR, there were 168 missing CGI-SCH assessments, resulting in 211 evaluable subjects at Month 12. For Risperidone, there were 165 missing CGI-SCH assessments, resulting in 227 evaluable subjects at Month 12.

Treatment-emergent adverse events are defined as adverse events that occurred after the first intake of the study medication (or on the same day).

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

Treatment-emergent adverse events are defined as adverse events that occurred after the first intake of the study medication (or on the same day).

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

Treatment-emergent adverse events are defined as adverse events that occurred after the first intake of the study medication (or on the same day).

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

Extra-pyramidal events include tremor, hypokinesia, muscle rigidity, hyperkinesia, and extrapyramidal disorder.

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

Treatment-emergent adverse events are defined as adverse events that occurred after the first intake of the study medication (or on the same day).

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

The normal range for men is 0 to 14, and for women is 0 to 24.

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

Symptoms are graded according to degree (not present to severe) and causal relationship (improbable, possible, probable). An individual AE is defined as an AE with a worse degree compared with Baseline and with a possible or probable relationship to study drug.

The Safety population at Month 12 is presented. For Quetiapine XR, 4 subjects did not take study drug, resulting in 391 evaluable subjects compared with the Randomized population (395 subjects). For Risperidone, 1 subject did not take study drug, results in 402 evaluable subjects compared with the Randomized population (403 subjects).

Symptoms are graded according to degree (not present to severe) and causal relationship (improbable, possible, probable). Hyperprolactinaemia in women is defined as number of women who show the individual adverse event (AE) hyperprolactinaemia. An individual AE Hyperprolactinaemia is defined as an AE with a worse degree of hyperprolactinaemia compared with baseline and with a possible or probable relationship to study drug.

Safety population at Month 12 is presented. Quetiapine XR: Out of 160 evaluable women, 73 were missing individual AE "Hyperprolactinaemia" data.

Risperidone: Out of 171 evaluable women, 74 were missing individual AE "Hyperprolactinaemia" data".

Symptoms are graded according to degree (not present to severe) and causal relationship (improbable, possible, probable). Sexual dysfunction in men is defined as number of men who show the individual adverse event (AE) sexual dysfunction. An individual AE sexual dysfunction is defined as an AE with a worse degree of sexual dysfunction compared with baseline and with a possible or probable relationship to study drug.

Safety population at Month 12 is presented. Quetiapine XR: Out of 231 evaluable men, 111 were missing individual AE "Sexual Dysfunction" data".

Risperidone: Out of 231 evaluable men, 106 were missing individual AE "Sexual Dysfunction" data".