Table 1.
Clinical characteristics of the patients.
| Older patients | Younger patients | T (df)a | p | |
|---|---|---|---|---|
| N = 25 | N = 23 | |||
| M (SD) | M (SD) | |||
| Duration of illness, years | 31.36 (10.54) | 10.48 (6.40) | 8.22 (46) | 0.000 |
| Age at illness onset, years | 24.56 (8.63) | 22.30 (4.73) | −1.13 (37, 84) | 0.264 |
| Hospitalized (%) | 68.00 | 34.78 | 0.021b | |
| CPZ equivalents, mg | 525.06 (395.38) | 859.26 (681.76) | −2.05 (34, 68) | 0.048 |
| Antipsychotic medication, AT/AT + T/T/no medication, N | 11/9/2/3 | 17/5/1/0 | 0.128b | |
| Additional antidepressive medication, N | 10 | 10 | 0.807b | |
| Additional benzodiazepines, N | 2 | 1 | 0.576b | |
| BPRS | 35.28 (9.21) | 41.43 (9.07) | 2.33 (46) | 0.024 |
| SAPS | 13.92 (14.69) | 19.48 (16.42) | −1.24 (46) | 0.222 |
| SANS | 31.08 (20.65) | 34.83 (25.60) | −0.56 (46) | 0.578 |
| AES | 26.52 (10.40) | 23.04 (11.83) | 1.08 (46) | 0.284 |
AES, Apathy Evaluation Scale; AT, atypical antipsychotics; AT + T, atypical and typical antipsychotics; BPRS, Brief Psychiatric Rating Scale; CPZ, chlorpromazine; SANS, Scale for the Assessment of Negative Symptoms; SAPS, Scale for the Assessment of Positive Symptoms; T, typical antipsychotics.
at-test (df, degrees of freedom).
bχ2-test.