Spanish validation of the Premorbid Adjustment Scale (PAS-S)

作者：Barajas Ana^*; Ochoa Susana; Banos Iris; Dolz Montse; Villalta Gil Victoria; Vilaplana Miriam; Autonell Jaume; Sanchez Bernardo; Cervilla Jorge A; Foix Alexandrina; Obiols Jordi E; Maria Haro Josep; Usall Judith

来源：Comprehensive Psychiatry, 2013, 54(2): 187-194.

DOI：10.1016/j.comppsych.2012.07.007

Background: The Premorbid Adjustment Scale (PAS) has been the most widely used scale to quantify premorbid status in schizophrenia, coming to be regarded as the gold standard of retrospective assessment instruments. %26lt;br%26gt;Aims: To examine the psychometric properties of the Spanish version of the PAS (PAS-S). %26lt;br%26gt;Method: Retrospective study of 140 individuals experiencing a first episode of psychosis (n=77) and individuals who have schizophrenia (n=63), both adult and adolescent patients. Data were collected through a socio-demographic questionnaire and a battery of instruments which includes the following scales: PAS-S, PANSS, LSP, GAF and DAS-sv. The Cronbach%26apos;s alpha was performed to assess the internal consistency of PAS-S. Pearson%26apos;s correlations were performed to assess the convergent and discriminant validity. %26lt;br%26gt;Results: The Cronbach%26apos;s alpha of the PAS-S scale was 0.85. The correlation between social PAS-S and total PAS-S was 0.85 (p%26lt;0.001); while for academic PAS-S and total PAS-S it was 0.53 (p%26lt;0.001). Significant correlations were observed between all the scores of each age period evaluated across the PAS-S scale, with a significance value less than 0.001. There was a relationship between negative symptoms and social PAS-S (0.20, p%26lt;0.05) and total PAS-S (0.22, p%26lt;0.05), but not with academic PAS-S. However, there was a correlation between academic PAS-S and general subscale of the PANSS (0.19, p%26lt;0.05). Social PAS-S was related to disability measures (DAS-sv); and academic PAS-S showed discriminant validity with most of the variables of social functioning. PAS-S did not show association with the total LSP scale (discriminant validity). %26lt;br%26gt;Conclusion: The Spanish version of the Premorbid Adjustment Scale showed appropriate psychometric properties in patients experiencing a first episode of psychosis and who have a chronic evolution of the illness. Moreover, each domain of the PAS-S (social and academic premorbid functioning) showed a differential relationship to other characteristics such as psychotic symptoms, disability or social functioning after onset of illness.

• 出版日期2013-2