Table 1.
Sample Characteristics at Baseline
| Characteristics | n = 157 |
|---|---|
| Age, mean (SD) | 48.8 (15.6) |
| Males, n (%) | 115 (73.2) |
| Ethnicity, n (%) | |
| African-Caribbean | 109 (74.7) |
| Mixed | 29 (19.9) |
| Caucasian | 6 (4.1) |
| Other | 2 (1.4) |
| Primary diagnosis schizophrenia, n (%) | 130 (82.8) |
| Cocaine use, n (%) | 30 (19.1) |
| Type of treatment, n (%) | |
| Inpatient treatment | 143(91.1) |
| Day care treatment | 14 (8.9) |
| Age at first admission, mean (SD) | 26.2 (10.1) |
| Duration of illness in years, mean (SD) | 23.6 (14.3) |
| Total years of admission, mean (SD) | 16.8 (14.4) |
| Duration of last admission in years, mean (SD) | 12.8 (13.8) |
| Lifetime intake of anticholinergics (g benztropine equivalents), mean (SD) | 23.6 (23.2) |
Note: Number of cases with missing data; Ethnicity: n = 11; age at first admission: n = 10; duration of Illness: n = 10; total years of admission: n = 11; duration of last admission in years: n = 11; lifetime intake of anticholinergics: n = 42.