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Subjective response to neuroleptic medication: a validation study of the Italian version of the Drug Attitude Inventory (DAI)

Published online by Cambridge University Press:  11 October 2011

Alessandro Rossi ,
Luca Arduini ,
Stefano De Cataldo  and
Paolo Stratta
Luca Arduini
Affiliation:
Dipartimento di Medicina Sperimentale, Università de L'Aquila, L'Aqulla
Stefano De Cataldo
Affiliation:
Dipartimento di Salute Mentale ASL 4, L'Aquila
Paolo Stratta
Affiliation:
Dipartimento di Salute Mentale ASL 4, L'Aquila
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Summary

Objective – Aim of the study was to investigate the psychometric properties of the Italian version of the Drug Attitude Inventory (DAI) by exploring its construct validity. Setting – 90 voluntary admitted patients with DSM III-R Schizophrenic (n.72) and Schizoaffective (n.18) disorders, age range between 18 and 50 years, treated with typical antipsychotics, able to participate in the study, were selected. Design – Exploratory factor analyses with alpha factoring and maximum–likelihood methods with Varimax Rotation were used to analyse DAI scores. Results – Extraction methods found 7 factors which explained 62.5% of the total variance. The first 2 factors could be labelled as “subjective response to treatment” construct and factors 3 to 7 as “attitude to medication” contruct. Conclusion – Although preliminarily, the Italian version of the DAI seems to maintain the original psychometric properties and it can be used easily to get a valid measurement of the patients' attitude to neuroleptic medication.

Riassunto

Scopo – Verificare se la versione italiana della Drug Attitude Inventory mantiene le proprietà psicometriche del questionario originate attraverso una validazione di costrutto. Setting – Lo studio è stato condotto su 90 pazienti con diagnosi di Disturbo Schizofrenico (n=72) e Disturbo Schizoaffettivo (n=18) ammessi al ricovero volontario per un episodio indice di riesacerbazione psicotica, d'età compresa tra i 18 ed i 50 anni, in trattamento con farmaci antipsicotici tipici e cognitivamente in grado di comprendere e rispondere alle domande del questionario. Disegno – Sono state impiegate analisi fattoriali esplorative con i metodi d'estrazione alfa fattoriale e della massima verosimiglianza; successivamente è stato utilizzato il metodo di Rotazione Varimax. Risultati – I metodi d'estrazione utilizzati trovavano 7 fattori che spiegavano il 62.5% della varianza. I primi 2 fattori possono essere identificati nel costrutto di “risposta soggettiva al trattamento” ed i fattori da 3 a 7 nel costrutto di “atteggiamento nei confronti della terapia”. Conclusioni – Benché lo studio sia preliminare, la traduzione italiana dello strumento sembra mantenere le proprietà psicometriche della versione originale e può essere utilizzata nella pratica clinica per una valida misurazione deH'atteggiamento del paziente nei confronti del trattamento con farmaci antipsicotici.

Keywords

risposta soggettivaantipsicoticiDrug Attitude Inventory (DAI)analisi fattorialesubjective responseantipsychotic drugsDrug Attitude Inventory (DAI)factor analysis
Type
Articles
Information
Epidemiology and Psychiatric Sciences , Volume 10 , Issue 2 , June 2001 , pp. 107 - 114
Copyright
Copyright © Cambridge University Press 2001

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