the average age of onset of schizophrenia was 21.04 years (SE = 0.44).
The majority of patients in this latent class (72%) had been diagnosed
with substance use disorders before the onset of schizophrenia, and
abou to ne-third (34%) had a family history of psychosis. The average
number of acute symptoms in a 2-day interval prior to the interview
was 4.27 ( SE = 0.12 ). Latent Class 3 consis ted of 325 individuals (27%).
Individuals in this subclass had a high probability of reporting
symptoms of dependence on alcohol and drugs; the majority of
the patients ( 82%) were male. The average age was 41.99 years
(SE = 0.59), and t he average age of onset of schizophrenia was 20.78
(SE =0.43). In the majority of these cases ( 65%), the onset of substance
use disorders preceded the onset of schizophrenia, and l ess than one-third of these individuals ( 2 8% ) reported a family history of psychosis.
The average number of acute symptoms 2 days prior to the interview
was 4.80 ( SE = 0.09).