Manuel Canal-Rivero1,2,3, Caroline Silva4, Jordi E Obiols-Llandrich5, Cristina García-Bernal1, Cándido García-Sanchez1, Tatiana Bustos-Cardona6, Thomas E Joiner7, Benedicto Crespo-Facorro1,2,3,8, Miguel Ruiz-Veguilla1,2,3,8. 1. Mental Health Service, Hospital Universitario Virgen del Rocío, Sevilla, Spain. 2. Centro Investigación Biomédica en Red Salud Mental, CIBERSAM, Madrid, Spain. 3. Instituto de Biomedicina de Sevilla (IBIS), Seville, Spain. 4. Department of Psychiatry, University of Rochester School of Medicine and Dentistry, New York, New York, USA. 5. Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, Barcelona, Spain. 6. Department of Psychiatry, Hospital Universitari Germans Trías i Pujol, Barcelona, Spain. 7. Department of Psychology, Florida State University, Tallahassee, Florida, USA. 8. Department of Psychiatry, Universidad de Sevilla, Seville, Spain.
Abstract
INTRODUCTION: Suicidal ideation (SI) represents one of the most prominent predictors of suicidal behavior (SB). The Interpersonal Needs Questionnaire (INQ) was developed from the Interpersonal Theory of Suicide (ITS) to assess the 2 core drivers of SI proposed by the theory. Despite the relevance of suicide-related ideations and ITS, there is a lack of psychometric measures validated in clinical Spanish population that adequately evaluate SI components of ITS. Thus, the main aim of the study was to validate INQ-10 in a Spanish clinical sample including the genuine cultural and linguistic characteristics of European Spanish. METHODS: 315 participants were included in the analyses; 149 of them consulted mental health services for the presence of suicide-related behaviors. A series of exploratory and confirmatory factor analyses were carried out to identify the factor solution. Bivariate and multivariate analyses were used to analyze psychometric properties. Finally, sensitivity and specificity properties were explored through receiver-operating characteristic analyses which also provided the cut-off values of the questionnaire. RESULTS: An 8-item version demonstrated a good fit to the 2-factor solution. Likewise, this 8-item version showed good psychometric properties. Sensitivity and specificity indices of the version validated as well as the calculated cut-off points were excellent. CONCLUSIONS: The current results demonstrate the utility of an 8-item INQ European Spanish version as a valid measure of the current SI in Spanish clinical population. In addition, the validated form reflects the theoretical framework on which it was built.
INTRODUCTION: Suicidal ideation (SI) represents one of the most prominent predictors of suicidal behavior (SB). The Interpersonal Needs Questionnaire (INQ) was developed from the Interpersonal Theory of Suicide (ITS) to assess the 2 core drivers of SI proposed by the theory. Despite the relevance of suicide-related ideations and ITS, there is a lack of psychometric measures validated in clinical Spanish population that adequately evaluate SI components of ITS. Thus, the main aim of the study was to validate INQ-10 in a Spanish clinical sample including the genuine cultural and linguistic characteristics of European Spanish. METHODS: 315 participants were included in the analyses; 149 of them consulted mental health services for the presence of suicide-related behaviors. A series of exploratory and confirmatory factor analyses were carried out to identify the factor solution. Bivariate and multivariate analyses were used to analyze psychometric properties. Finally, sensitivity and specificity properties were explored through receiver-operating characteristic analyses which also provided the cut-off values of the questionnaire. RESULTS: An 8-item version demonstrated a good fit to the 2-factor solution. Likewise, this 8-item version showed good psychometric properties. Sensitivity and specificity indices of the version validated as well as the calculated cut-off points were excellent. CONCLUSIONS: The current results demonstrate the utility of an 8-item INQ European Spanish version as a valid measure of the current SI in Spanish clinical population. In addition, the validated form reflects the theoretical framework on which it was built.
Authors: Rebeca García-Nieto; Isabel Parra Uribe; Diego Palao; Jorge Lopez-Castroman; Pilar Alejandra Sáiz; María Paz García-Portilla; Jerónimo Saiz Ruiz; Angela Ibañez; Thais Tiana; Santiago Durán Sindreu; Victor Perez Sola; Yolanda de Diego-Otero; Lucia Pérez-Costillas; Rafael Fernández García-Andrade; Dolores Saiz-González; Miguel Angel Jiménez Arriero; Mercedes Navío Acosta; Lucas Giner; Julio Antonio Guija; José Luis Escobar; Jorge Antonio Cervilla; Marta Quesada; Dolores Braquehais; Hilario Blasco-Fontecilla; Teresa Legido-Gil; Fuensanta Aroca; Enrique Baca-García Journal: Rev Psiquiatr Salud Ment Date: 2011-11-16 Impact factor: 3.318