TABLE 1.
Sample characteristics
| Mean (range of means) | Schizophrenia | Healthy control |
|---|---|---|
| N | 2,833 | 3,929 |
| % male | 66.9% (54.4–100%) | 54.9% (38.6–100%) |
| Age, years | 35.1 (16.3–43.9) | 33.2 (16.2–43.6) |
| Age at onset, years | 23.9 (20.7–28.9) | ‐ |
| Duration of illness, years | 11.3 (0.7–31.5) | ‐ |
| PANSS total | 16.6 (13.7–22.9) | ‐ |
| SANS total | 21.3 (5.5–38.9) | ‐ |
| SAPS total | 17.1 (9.0–23.2) | ‐ |
| Chlorpromazine dose equivalent | 376 (166.1–634.6) | ‐ |
Note: Age, age at onset and duration of illness, total PANSS (Positive and Negative Syndrome Scale), SANS (Scale for the Assessment of Negative Symptoms), SAPS (Scale for the Assessment of Positive Symptoms), and chlorpromazine dose equivalents were all weighted by sample size. Range is reported on range of means across the data sets. The 100% extreme in % male was due to the all‐male sample from the Mental Health Research Center, Moscow.