Predictive Validity of the Brazilian Portuguese Version of the Family Questionnaire for Relapse in Patients With Schizophrenia

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Abstract

Background and Purpose:

The Family Questionnaire-Brazilian Portuguese Version (FQ-BPV) has been preliminarily validated in the Brazilian population. This study assessed the predictive validity of the FQ-BPV for relapse in patients with schizophrenia.

Methods:

Ninety-four dyads (patients with schizophrenia and their relatives) were recruited from three mental health clinics. Expressed emotion was assessed using the FQ-BPV. Presence of relapse was assessed at 6-, 9-, 12-, and 18-month follow-ups and analyzed through logistic regressions.

Results:

The critical comments (CC) domain of the FQ-BPV was statistically significant at 18 months. However, the model was not sufficiently robust to classify individuals correctly into relapse or no relapse categories.

Conclusion:

The FQ-BPV did not predict relapse well and we cannot recommend it for that purpose in Brazil without further studies.

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