Table 1 Demographics and baseline characteristics
Characteristics | No-PRS group (N = 315) | PRS group (N = 59) | Statistics | Total (N = 374) | ||||
|---|---|---|---|---|---|---|---|---|
| Â | Mean | SD | Mean | SD | F | P | Mean | SD |
Age | 32.9 | 10.9 | 31.2 | 10.0 | 1.30 | 0.256 | 32.6 | 10.8 |
Education (years) | 12.2 | 2.3 | 12.6 | 2.2 | 1.74 | 0.188 | 12.2 | 2.3 |
Age at onset | 26.6 | 8.9 | 24.4 | 7.6 | 3.18 | 0.075 | 26.3 | 8.8 |
Duration of illness (years) | 6.6 | 6.7 | 7.1 | 7.7 | 0.23 | 0.628 | 6.7 | 6.9 |
Risperidone dose at baseline (mg/d) | 4.3 | 0.6 | 4.4 | 0.6 | 0.30 | 0.582 | 4.4 | 0.6 |
Total treatment in this episode (months) | 5.3 | 5.1 | 5.2 | 4.3 | 0.04 | 0.850 | 5.3 | 5.0 |
Overall length of risperidone treatment in this episode (days) | 83.5 | 54.1 | 90.2 | 59.7 | 0.74 | 0.389 | 84.5 | 55.0 |
Length of risperidone treatment at optimal therapeutic dose (days) | 55.4 | 48.7 | 54.6 | 25.1 | 0.02 | 0.901 | 55.2 | 45.8 |
PANSS total score | 39.1 | 9.5 | 42.8 | 10.0 | 7.66 | 0.006 | 39.5 | 9.6 |
|  | N | % | N | % | χ2 | P | N | % |
Number of male participants | 166 | 52.7 | 6 | 10.2 | 36.185 | <0.001 | 172 | 46.0 |
Married | 133 | 42.2 | 27 | 45.8 | 0.440 | 0.802 | 160 | 42.8 |
Family history of psychiatric disorder(s) | 25 | 7.9 | 8 | 13.6 | 1.953 | 0.162 | 33 | 8.8 |
Unemployed | 149 | 47.9 | 30 | 50.2 | 1.450 | 0.484 | 179 | 47.8 |