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Development and validation of the Questionnaire of Stressful Life Events (QSLE)

2017; Elsevier BV; Volume: 95; Linguagem: Inglês

10.1016/j.jpsychires.2017.08.016

1879-1379

Anna Butjosa, Juana Gómez‐Benito, Inez Myin‐Germeys, Ana Barajas, Iris Baños, Judith Usall, Norma Grau, Luis Granell, Andrea Sola, Janina Carlson, Montserrat Dolz, Bernardo Sánchez, Josep María Haro, Susana Ochoa, Susana Araya, Belén Arranz, María Verónica Muñoz Arteaga, R Pérez Asensio, J. Autonell, Iris Baños, M. Bañuelos, Ana Barajas, Marta Barceló, Michel Blanc, Miquel Borràs, Ester Busquets, Anna Butjosa, Janina Carlson, Vanessa Carral, Elena Castro, Casimiro Corbacho, Marta Coromina, I. Dachs, Montserrat Dolz, Margarita Domènech, María Elías, I. Espezel, E. Falo, Arnau Fargas, Alexandrina Foix, Montserrat Fusté, M. Godrid, David Delgado‐Gómez, Olga Molinero González, Luis Granell, L. Gumà, Josep María Haro, Sávia Denise Silva Carlotto Herrera, Elena Huerta, Fernando Lacasa, Nuria de Mas, L. Martí, R. Gómez Martínez, Josep Lluís Matalí, A. Miñambres, Laia Miquel, Daniel Muñoz, Verónica Pérez Muñoz, R. Nogueroles, Susana Ochoa, José Ortíz, Marta Pardo, M. Planella, Trinidad Pélaez, S. Peruzzi, S. Benítez Rivero, María José Cubillas Rodríguez, E. Rubio, Stephen Sammut, Margot Sanchez, Bernardo Sánchez, Eduardo Serrano‐Troncoso, C. Solís, Christian Stephan‐Otto, Patricia García Tabuenca, S. Teba, A. Torres, David Urbano, Judith Usall, Míriam Vilaplana, V. Villalta,

Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes

Stressful life events (SLEs) are important indicators prior to the onset of first-episode psychosis (FEP). Although there are well-validated interviews and self-reports for assessing SLE on proximate events, unfortunately there are no instruments to assess SLE covering an entire lifetime. This study includes detailed specific items of childhood, adolescence, and adulthood focused on the presence of SLE, emotional impact (stressfulness), and the age at which the event occurred. Our research describes 2 studies designed to develop and validate a new scale to assess SLE: the Questionnaire of Stressful Life Events (QSLE). In Study 1, an over-inclusive item pool was generated based on review of group of experts at Parc Sanitari Sant Joan de Déu and content validity was examined by an Expert Survey. The whole scale represents the content domain. In Study 2, item-level analyses revealed good distributional properties, intra-rater reliability, and convergent and discriminant validity. In the sensitivity and specificity analysis, 18 items had high relevance in the discriminability between patients with FEP and healthy controls. We note that there was an AUC of 0.676, indicating a good predictor. Using 7 as a cutoff to predict an individual as a patient would yield a sensitivity of 64.8% and a specificity of 65%. Overall, the QSLE displayed satisfactory psychometric characteristics in a Spanish population. These results suggest that QSLE gives us the opportunity to investigate childhood, adolescent, and adult life events by measuring the stress and age at the moment on a continuous scale.