Table 2. Health outcome measures.
| Outcome | Value |
|---|---|
| Physical health – no. of participants/total no. (%) | |
| Deceased | 14/288 (4.9) |
| Hepatitis C virus exposure (seropositive) | 197/279 (70.6) |
| Hepatitis C virus persistent infection | 144/188 (76.6) |
| Psychological health – no. of participants/total no. (%) | |
| Psychotic illnessa | 136/288 (47.2) |
| Functional psychosisb | 48/288 (16.7) |
| Psychosis not otherwise specified | 37/288 (12.8) |
| Substance–induced psychosis | 49/288 (17.0) |
| Psychosis due to a general medical conditionc | 2/288 (0.7) |
| Depressive illnessd | 56/288 (19.4) |
| Number of substance dependence diagnoses | |
| Median | 3 |
| Interquartile range | 2–4 |
| Social health – no. of participants/total no. (%) | |
| Role functioning scalee | |
| Median | 12 |
| Interquartile range | 10–14 |
| Social and Occupational Functioning Assessment Scalef | |
| Median | 38 |
| Interquartile range | 31–45 |
| Committed a crime in past month | 95/283 (33.6) |
| Drug trafficking | 60/283 (21.2) |
| Theft | 31/283 (11.0) |
| Any employment in past month | 42/281 (14.9) |
| Drug spending in past month (Canadian dollars) | |
| Median | 350 |
| Interquartile range | 80–960 |
| Multimorbidity score (number of illnesses, 0-12) | |
| Median | 3 |
| Interquartile range | 2–4 |
Information supporting diagnoses of a functional versus a substance-induced psychosis included ages at onset of first psychotic symptoms and of initial substance use, persistence and severity of psychotic symptoms and patterns of current substance use, as well as history of substance-independent psychotic episodes. In cases with a level of complexity including psychosis, stimulant dependence, and possible organic contribution from head injury or other medical illness, a diagnosis of Psychosis not otherwise specified was made according to DSM-IV criteria. Substance dependence diagnoses were informed by current patterns of substance use, evidence of tolerance and withdrawal, and degree of time and resources spent on obtaining and using the substance.
Baseline: schizophrenia (n=21), schizoaffective (n=15), bipolar with psychosis (n=9), depression with psychosis (n=2), delusional disorder (n=1)
Baseline: post-anoxic (n=1), interferon-related (n=1)
Depression diagnoses included major depressive disorder, depression not otherwise specified, substance-induced depression or depression with psychosis according to DSM-IV criteria.
n=284, Role Functioning Scale range: 0-28. Higher score indicates adequate functioning in the realms of work productivity, independent living and self-care, as well as positive immediate and extended social network relationships.
n=287, SOFAS range: 0-100. Higher score indicates effective social and occupational functioning.