Substance-induced psychoses converting into schizophrenia: a register-based study of 18,478 Finnish inpatient cases.

@article{NiemiPynttri2013SubstanceinducedPC,
  title={Substance-induced psychoses converting into schizophrenia: a register-based study of 18,478 Finnish inpatient cases.},
  author={Jussi A Niemi-Pyntt{\"a}ri and Reijo Sund and Hanna Putkonen and Helena Vorma and Kristian Wahlbeck and Sami P. Pirkola},
  journal={The Journal of clinical psychiatry},
  year={2013},
  volume={74 1},
  pages={e94-9}
}
BACKGROUND Despite the clinical importance of substance-induced psychosis (SIP), few studies have examined the course of this condition after its acute manifestation. OBJECTIVE To investigate the rate of SIP conversion to a schizophrenia spectrum disorder and the length of follow-up needed to catch the majority of these patients whose diagnoses change. In addition to the conversion rate and pattern, we wanted to look for possible related factors. METHOD Using the nationwide Finnish Hospital… CONTINUE READING
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