Table 1.
Demographic and clinical characteristics of the patient sample at baseline
| RIS group | BNS group | P-value | |
|---|---|---|---|
| Age (years) | 31.1±8.8 | 29.6±8.3 | 0.58 |
| Sex (M/F) | 9/10 | 9/11 | 0.88 |
| Education (years) | 13.6±2.4 | 13.0±2.2 | 0.40 |
| Handedness (right/left) | 19/0 | 19/1 | 0.97 |
| Smoking (yes/no) | 7/12 | 8/12 | 0.84 |
| Duration of illness (years) | 7.7±5.7 | 6.1±4.6 | 0.33 |
| PANSS | |||
| PANSS-P | 29.5±4.1 | 29.0±6.1 | 0.76 |
| PANSS-N | 29.2±6.9 | 28.2±7.3 | 0.66 |
| PANSS-G | 47.2±8.6 | 47.2±7.9 | 0.99 |
| PANSS-T | 105.8±13.8 | 104.3±14.4 | 0.73 |
| BACS-J | |||
| Verbal learning | −1.7±0.8 | −1.5±0.8 | 0.44 |
| Working memory | −1.7±0.7 | −1.7±0.8 | 0.86 |
| Motor function | −1.3±0.7 | −0.9±0.9 | 0.20 |
| Verbal fluency | −1.5±0.8 | −1.3±0.5 | 0.32 |
| Attention and processing speed | −1.9±0.5 | −1.6±0.4 | 0.10 |
| Executive function | −1.2±0.5 | −1.1±0.6 | 0.58 |
| LASMI | |||
| Daily living | 1.8±0.7 | 2.0±0.7 | 0.62 |
| Interpersonal relations | 2.1±0.6 | 2.2±0.6 | 0.42 |
| Work skills | 2.1±0.6 | 2.3±0.6 | 0.41 |
| Endurance and stability | 3.2±0.9 | 3.1±1.1 | 0.78 |
| Self-recognition | 2.3±0.8 | 2.4±0.7 | 0.82 |
Abbreviations: RIS, risperidone; BNS, blonanserin; M, male; F, female; PANSS, Positive and Negative Syndrome Scale; P, positive scale score; N, negative scale score; G, general psychopathology subscale score; T, total score; BACS-J, Brief Assessment of Cognition in Schizophrenia, Japanese-language version; LASMI, Life Assessment Scale for the Mentally Ill.