Short-term Clinical Outcome of Previously Untreated and Treated Schizophrenia and Impact of Duration of Untreated Psychosis.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE(2023)
Govt Med Coll | GGSMCH | Civil Hosp
Abstract
Background: Duration of untreated psychosis (DUP) is an important modifiable factor affecting schizophrenia outcomes. A dearth of research in India on untreated versus treated schizophrenia warrants further research. Methods: This was a longitudinal study in a tertiary hospital over 2 years. Inpatients diagnosed with schizophrenia ( N = 116), aged 18–45, were divided into untreated and treated groups. Diagnostic confirmation, severity assessment, and clinical outcome were done using ICD-10 criteria, Positive and Negative Syndrome Scale (PANSS), and Clinical Global Impression (CGI) scale. Follow-up was done at 12 and 24 weeks. DUP was measured, and its association with the outcome was assessed. Results: Final analysis included 100 patients, 50 each of previously untreated and treated. Untreated patients had lower age and duration of illness (DOI), but higher DUP ( p < .001). Treated patients showed much improvement on CGI-I at 12 weeks ( p = .029), with no difference at 24 weeks. PANSS severity comparison showed no difference, and both groups followed a declining trend. In untreated patients, age of onset (AoO) was negatively correlated with severity (except general symptoms at baseline) at all follow-ups (‘ r’ range = −0.32 to –0.49, p < .05), while DOI showed a positive correlation with negative and general symptoms at 12 weeks ( r ~ 0.3, p < .05). Treated patients showed inconsistent and lower negative correlation between AoO and PANSS, with no correlation between severity and DOI. The mean sample DUP was 17.9 ± 31.6 weeks; it negatively correlated with education ( r = –0.25, p = .01) and positively with PANSS severity (‘ r’ range = 0.22 to 0.30, p < .05) at all follow-ups, especially negative symptoms. Patients with no or minimal improvement on CGI at 24 weeks had higher DUP (Quade’s ANOVA F[1,98] = 6.24, p = .014). Conclusion: Illness variables in untreated schizophrenia affect severity, which has delayed improvement than treated schizophrenia. Higher DUP is associated with negative symptoms of schizophrenia.
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Key words
DUP,Duration of untreated psychosis,Outcome,Psychosis,Schizophrenia,Treated,Untreated
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