Background: Studies performed to assess the relevance of duration of untreated psychosis (DUP) as a predictor of long-term outcome (i.e. follow-ups of ten years or more) are somewhat limited. The aim of this study was to evaluate the potential association between DUP and very long-term outcome (16-33 yrs) of schizophrenia by means of a retrospective design. Methods: Retrospective data obtained from clinical records were collected regarding DUP and outcome variables (number of hospitalizations; number of attempted suicides; course of illness; GAF scores at last observation) for a cohort of 80 outpatients (52 Males, 28 Females, mean age 51.0+/-11.58 years) affected by schizophrenia according to DSMIVTR attending a university community mental health centre. Results: Mean duration of follow up was 25.2+/-8.68 years; mean duration of untreated psychosis was 49.00 months (range 1-312 mo), with no significant difference according to gender. Patients with a shorter DUP (=/<1 year) displayed more frequent "favourable" courses of illness (28.9% vs 8.6%) (p = 0.025), more frequent cases with limited (=/<3) number of hospital admissions (85.7% vs 62.1%) (p = 0.047) and a better functioning (mean GAF score = 50.32+/-16.49 vs 40.26+/-9.60, p = 0.002); regression analyses confirmed that shorter DUP independently predicted a more positive outcome in terms of number of hospital admissions, course of illness, functioning (GAF scores). Conclusion: A shorter DUP appears to act as a significant predictor of better outcome in schizophrenia even in the very long-term.
Does duration of untreated psychosis predict very long term outcome of schizophrenic disorders? Results of a retrospective study
Primavera D;NICOTRA, ERALDO FRANCESCO;CARPINIELLO, BERNARDO
2012-01-01
Abstract
Background: Studies performed to assess the relevance of duration of untreated psychosis (DUP) as a predictor of long-term outcome (i.e. follow-ups of ten years or more) are somewhat limited. The aim of this study was to evaluate the potential association between DUP and very long-term outcome (16-33 yrs) of schizophrenia by means of a retrospective design. Methods: Retrospective data obtained from clinical records were collected regarding DUP and outcome variables (number of hospitalizations; number of attempted suicides; course of illness; GAF scores at last observation) for a cohort of 80 outpatients (52 Males, 28 Females, mean age 51.0+/-11.58 years) affected by schizophrenia according to DSMIVTR attending a university community mental health centre. Results: Mean duration of follow up was 25.2+/-8.68 years; mean duration of untreated psychosis was 49.00 months (range 1-312 mo), with no significant difference according to gender. Patients with a shorter DUP (=/<1 year) displayed more frequent "favourable" courses of illness (28.9% vs 8.6%) (p = 0.025), more frequent cases with limited (=/<3) number of hospital admissions (85.7% vs 62.1%) (p = 0.047) and a better functioning (mean GAF score = 50.32+/-16.49 vs 40.26+/-9.60, p = 0.002); regression analyses confirmed that shorter DUP independently predicted a more positive outcome in terms of number of hospital admissions, course of illness, functioning (GAF scores). Conclusion: A shorter DUP appears to act as a significant predictor of better outcome in schizophrenia even in the very long-term.
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