Table 1.
Demographic and clinical characteristics
| Variables | N total | Frequency | |
|---|---|---|---|
| Gender (female/male) | 121 | 56/65 (46.3%/53.7%) | |
| Diagnosisa | 121 | ||
| Paranoid schizophrenia (ICD-10: F20.0) | 49 (40.5%) | ||
| Hebephrenic schizophrenia (ICD-10: F20.1) | 03 (02.5%) | ||
| Catatonic schizophrenia (ICD-10: F20.2) | 02 (01.7%) | ||
| Schizotypal disorder (ICD-10: F21) | 01 (00.8%) | ||
| Persistent delusional disorder (ICD-10: F22.X) | 10 (08.3%) | ||
| Acute and transient psychotic disorder (ICD-10: F23.0) | 08 (06.6%) | ||
| Acute polymorphic psychotic disorder with symptoms of schizophrenia and acute schizophrenia-like psychotic disorder (ICD-10: F23.1 and F23.2) | 14 (11.6%) | ||
| Other acute predominantly delusional psychotic disorders (ICD-10: F23.3) | 04 (03.3%) | ||
| Schizoaffective disorders (ICD-10: F25.0) | 02 (01.7%) | ||
| Schizoaffective disorder, depressive type (ICD-10: F25.1) | 11 (09.1%) | ||
| Schizoaffective disorder, mixed type (ICD-10: F25.2) | 07 (05.8%) | ||
| Others | 10 (08.3%) | ||
| Educational level | 121 | ||
| High school diploma | 51 (42.1%) | ||
| Secondary school diploma | 14 (11.6%) | ||
| Middle school diploma | 19 (15.7%) | ||
| No degree (yet) | 03 (02.5%) | ||
| Not specified | 34 (28.1%) | ||
| Antipsychotic treatmentb | 121 | ||
| None | 02 (01.7%) | ||
| One | 84 (69.4%) | ||
| Two | 27 (22.3%) | ||
| Three | 01 (00.8%) | ||
| Not specified | 07 (05.8%) | ||
| Drug misuse before hospital admissionc | 121 | ||
| Yes, one substance | 22 (18.2%) | ||
| Yes, two substances | 05 (04.1%) | ||
| Yes, multiple substances | 06 (05.0%) | ||
| No | 85 (70.2%) | ||
| Not specified | 03 (02.5%) | ||
| Mean | s.d. | ||
| Age at neurocognitive testing (years) | 121 | 35.10 | 15.54 |
| Females | 56 | 35.07 | 15.94 |
| Males | 65 | 35.12 | 15.30 |
| Premorbid IQd | 84 | 97.80 | 16.68 |
| Duration of illness at the time of the lumbar puncture (months) | 70 | 12.20 | 23.39 |
a.
Diagnosis according to the ICD-10.
b.
As recorded in discharge summaries.
c.
Misuse of at least one substance (other than tobacco) before patients were admitted to hospital.