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Predicting functional remission in patients with schizophrenia: a cross-sectional study of symptomatic remission, psychosocial remission, functioning, and clinical outcome

Authors Valencia M, Fresán A, Barak Y, Juárez F, Escamilla R, Saracco R

Received 25 April 2015

Accepted for publication 19 June 2015

Published 10 September 2015 Volume 2015:11 Pages 2339—2348

DOI https://doi.org/10.2147/NDT.S87335

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Ryouhei Ishii

Peer reviewer comments 4

Editor who approved publication: Dr Roger Pinder

Marcelo Valencia,1 Ana Fresán,2 Yoram Barak,3 Francisco Juárez,1 Raul Escamilla,4 Ricardo Saracco4

1
Division of Epidemiological and Psychosocial Research, 2Division of Clinical Research, National Institute of Psychiatry Ramón de la Fuente, Mexico City, Mexico; 3Psychiatry Department, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; 4Schizophrenia Clinic, National Institute of Psychiatry Ramón de la Fuente, Mexico City, Mexico

Background: New approaches to assess outcome in schizophrenia include multidimensional measures such as remission, cognition, psychosocial functioning, and quality of life. Clinical and psychosocial measures have been recently introduced to assess functional outcome.
Objective: The study presented here was designed to examine the rates of symptomatic remission, psychosocial remission, global functioning, and clinical global impressions in a sample of schizophrenia outpatients in order to assess functional remission and to identify predictive factors for functional remission.
Methods: A total of 168 consecutive Mexican outpatients receiving pharmacological treatment at the National Institute of Psychiatry in Mexico City were enrolled in a cross-sectional study. Symptomatic remission was assessed according to the definition and criteria proposed by the Remission in Schizophrenia Working Group using the Positive and Negative Symptom Scale. Psychosocial remission was assessed according to Barak criteria using the Psychosocial Remission in Schizophrenia scale. Functioning was measured with the Global Assessment of Functioning, and clinical outcome with the Clinical Global Impressions (CGI) Scale.
Results: Findings showed that 45.2% of patients fulfilled the symptomatic remission criteria, 32.1% achieved psychosocial remission, and 53% reported adequate functioning. However, the combination of these three outcome criteria – symptomatic, psychosocial remission, and functioning – indicated that 14.9% of the patients achieved our predefined functional remission outcome. The logistic regression model included five predictive variables for functional remission: (1) being employed, (2) use of atypical antipsychotics, (3) lower number of medications, (4) lower negative symptom severity, and (5) lower excitement symptom severity.
Conclusion: The study demonstrated that symptomatic remission, psychosocial remission, and functioning could be achievable goals for a considerable number of patients. The outcome of functional remission was achieved by a minority of patients, less than 15%. New approaches should include multidimensional measures to assess functional outcome in schizophrenia research.

Keywords: Predictors, functional remission, symptomatic remission, psychosocial functioning, clinical outcome, Mexico

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