Validación de la Escala de Desesperanza de Beck en pacientes con riesgo suicida / Validation of the Beck Hopelessness Scale in patients with suicide risk

Introducción. Pocas escalas se han validado en castellano para el riesgo suicida y en ninguna de ellas se ha hallado la validez predictiva. Objetivo. Determinar la validez y confiabilidad de la Escala de Desesperanza de Beck en pacientes con suicidabilidad que acuden a consulta especializada. Métodos. Se aplicaron la Escala de Desesperanza de Beck, el Inventario de Razones para Vivir y el Cuestionario de Comportamiento Suicida a pacientes con suicidabilidad que asistieron a consulta externa y urgencias. A los 30 días se realizó una valoración para determinar la validez predictiva del intento suicida o suicidio. Resultados. Se evaluaron 244 pacientes con una edad promedio de 30,7 años±13,2; la mayoría de ellos fueron mujeres. La consistencia interna de la Escala de Desesperanza de Beck es de 0,9 (fórmula 20 de Kuder-Richardson). Se encontraron 4 dimensiones que explican el 50% de la varianza. Tuvo una correlación positiva con el Cuestionario de Comportamiento Suicida (Spearman 0,48, p<0,001), número de intentos suicidas (Spearman 0,25, p<0,001), y severidad del riesgo suicida (Spearman 0,23, p<0,001). La correlación con el Inventario de Razones para Vivir fue negativa (Spearman -0,52, p<0,001). Con un punto de corte ≥12 el valor predictivo negativo fue de 98,4% (IC 95%: 94,2-99,8), y el valor predictivo positivo fue de 14,8% (IC 95%: 6,6-27,1). Conclusión. La Escala de Desesperanza de Beck en pacientes colombianos con suicidabilidad presenta unas dimensiones similares a la versión original, con adecuada confiabilidad y moderada validez, tanto concurrente como predictiva

Introduction. Only a few scales have been validated in Spanish for the assessment of suicide risk, and none of them have achieved predictive validity. Objective. To determine the validity and reliability of the Beck Hopelessness Scale in patients with suicide risk attending the specialist clinic. Methods. The Beck Hopelessness Scale, reasons for living inventory, and the suicide behaviour questionnaire were applied in patients with suicide risk attending the psychiatric clinic and the emergency department. A new assessment was made 30 days later to determine the predictive validity of suicide or suicide attempt. Results. The evaluation included a total of 244 patients, with a mean age of 30.7±13.2 years, and the majority were women. The internal consistency was .9 (Kuder-Richardson formula 20). Four dimensions were found which accounted for 50% of the variance. It was positively correlated with the suicidal behaviour questionnaire (Spearman .48, P<.001), number of suicide attempts (Spearman .25, P<.001), severity of suicide risk (Spearman .23, P<.001). The correlation with the reasons for living inventory was negative (Spearman -52, P<.001). With a cut-off ≥12, the negative predictive value was 98.4% (95% CI: 94.2-99.8), and the positive predictive value was 14.8% (95% CI: 6.6-27.1). Conclusion. The Beck Hopelessness Scale in Colombian patients with suicidality shows results similar to the original version, with adequate reliability and moderate concurrent and predictive validity

Validation of the Beck Hopelessness Scale in patients with suicide risk. / Validación de la Escala de Desesperanza de Beck en pacientes con riesgo suicida.

INTRODUCTION: Only a few scales have been validated in Spanish for the assessment of suicide risk, and none of them have achieved predictive validity. OBJECTIVE: To determine the validity and reliability of the Beck Hopelessness Scale in patients with suicide risk attending the specialist clinic. METHODS: The Beck Hopelessness Scale, reasons for living inventory, and the suicide behaviour questionnaire were applied in patients with suicide risk attending the psychiatric clinic and the emergency department. A new assessment was made 30 days later to determine the predictive validity of suicide or suicide attempt. RESULTS: The evaluation included a total of 244 patients, with a mean age of 30.7±13.2 years, and the majority were women. The internal consistency was .9 (Kuder-Richardson formula 20). Four dimensions were found which accounted for 50% of the variance. It was positively correlated with the suicidal behaviour questionnaire (Spearman .48, P<.001), number of suicide attempts (Spearman .25, P<.001), severity of suicide risk (Spearman .23, P<.001). The correlation with the reasons for living inventory was negative (Spearman -.52, P<.001). With a cut-off ≥12, the negative predictive value was 98.4% (95% CI: 94.2-99.8), and the positive predictive value was 14.8% (95% CI: 6.6-27.1). CONCLUSION: The Beck Hopelessness Scale in Colombian patients with suicidality shows results similar to the original version, with adequate reliability and moderate concurrent and predictive validity.