Cuestionario de esquemas de Young CEY-S3: propiedades psicométricas en una muestra chilena mixta / Young Schema Questionnaire YSQ-S3: psychometric properties in an adult mixed sample from Chile

Resumen El Cuestionario de Esquemas de Young CEY-S3 es un instrumento que mide una taxonomía de 18 temas psicológicos centrales denominados esquemas desadaptativos tempranos, los cuales subyacerían a los trastornos de personalidad y a otros trastornos mentales. Esta investigación pretende estudiar las propiedades psicométricas del CEY-S3 en población chilena. Una muestra mixta de 85 pacientes de dos unidades de psiquiatría en hospitales públicos con diagnóstico de al menos un trastorno de la personalidad, y de 207 estudiantes universitarios no consultantes de dos universidades privadas. Los resultados muestran un buen ajuste para el modelo de 18 factores, una buena capacidad de discriminación por sexo y muestra clínica y no clínica, así como la consistencia interna de 17 de las 18 escalas es adecuada (α > 0.70). Estos resultados están en concordancia con los estudios de validación en distintas lenguas y culturas, lo que apoya su empleo en ámbitos clínicos o de investigación.

Abstract Young Schema Questionnaire, CEY-S3, is an instrument that measures a taxonomy of 18 central psychological themes called early maladaptive schemas, which would underlie personality disorders and other mental disorders. The aim of this investigation is analyze psychometric properties of CEY-S3 in a Chilean mixed sample of 85 patients with a diagnosis of personality disorders from two psychiatric units in public hospitals and a 207 university students sample from two private universities. The results show a good fit for the 18 factor model, a good ability to discriminate by sex and clinical and non-clinical sample, as well as the internal consistency of 17 of the 18 scales is adequate (α> 0.70). These results are in accordance with the validation studies in different languages and cultures, which supports their use in clinical or research fields.

Inventario Concepción: desarrollo y validación de un instrumento de tamizaje de depresión para atención primaria / Concepción inventory: development of a screening instrument for depression in primary care in Chile

Background: Screening instruments are required for the detection of depressive disorders by primary care practitioners. Aim: To develop a screening instrument to detect depression, based on data gathered interviewing patients attending primary health care settings. Material and Methods: The instrument was constructed with data about factors associated or triggering a depressive disorder obtained from 3,000 patients consulting for general morbidity. All patients answered the Composite International Diagnostic Interview, (version 2.1, section depression) and an inventory containing 39 risk factors for depression, obtained from the literature. A multiple imputation method using chained equations was carried out. Using a binary logistic regression with backward selection, an equation for depression screening was obtained. The c-index was calculated to estimate discriminating power of the model. A shrinkage factor was estimated to adjust the predictive model. Results: Estimations were carried out with data from 2,552 patients with a median age of 47 years (73% women). Fifty five percent lived with a partner and 45% had basic studies. The method selected 14 significant predictors, with a shrinkage value of 0.861 and a c-index of 0.838 (95% confidence intervals 0.82-0.86). Conclusions: The instrument has adequate psychometric properties as a screening tool for depression in primary health care.

Asociación entre los polimorfismos 5HTTLPR, uMAOA y depresión en una cohorte de pacientes de atención primaria / Association between serotonin transporter and monoamine oxidase A gene polymorphisms and depression

Background: Serotonin plays a central role regulating mood and on the development of depressive disorders. Aim: To study whether 5HTTLPR functional polymorphisms in the serotonin transporter gene or the Monoamine oxidase A gene (uMAOA) were risk markers for depression. Material and Methods: The Composite International Diagnostic Interview (CIDI) was applied to 1,062 consultants in primary health care centers aged between 18 and 75 years to establish the diagnosis of depression. A sample of saliva was obtained for DNA extraction and genetic analyses. Results: No association between the presence of depressive disorders and 5HTTLPR (ss) or uMAOA (3/3) risk genotypes was found. Psychological abuse and the presence of two or more life events were found to be predictors of depression in the studied sample. Conclusions: In this study, 5HTTLPR and uMAOA polymorphisms were not risk factors for depression. However, psychological abuse and the presence of two or more life events were risk factors for depressive disorders.

Epidemiología del TDAH en niños y adolescentes chilenos / Epidemiology of ADHD in children and adolescents of Chile

ADHD prevalence, associated factors, comorbidity and service use are reported for a sample of 1,558 children and adolescents, belonging to four provinces in Chile. The sample is weighted in each step for selection bias. Psychiatric disorders and impairment are assessed with computerized in-home DISC-IV interviews, and a questionnaire regarding socioeconomic and family variables and service use. Estimates of prevalence rates are obtained by means of STATA 11.0 software, with complex sample design. Multivariate logistic regression is used to determine which factors were the best predictors for mental disorders. Participation rate is 82.4 %. The prevalence of ADHD is 10 %, and the most prevalent subtype is the hyperactive/impulsive, with no gender differences. Both hyperactive/impulsive and combined subtypes are more prevalent in children 4-11 than in adolescents. The most prevalent comorbidities are anxiety disorders and oppositional disorder. Anxiety is the more prevalent comorbid disorder in girls and correlated with a combined subtype. Perception of good family functioning, adolescent age and school dropout have a negative association with ADHD diagnosis, while maltreatment shows a positive correlation. Over 50 % of children and adolescents diagnosed with ADHD have used services in the last year. This is the first comprehensive community study of psychiatric disorders in children and adolescents in a South American country. It yields information for child and adolescent mental health programmes in Chile and contributes to cross-cultural epidemiological research. Key words: Psychiatric epidemiology, ADHD prevalence, Cross-cultural epidemiology, Infant and child Psychiatry.

Se describe la prevalencia del TDAH, los factores asociados, la comorbilidad y el uso de servicios, en una muestra de 1.558 niños y adolescentes, pertenecientes a cuatro provincias de Chile. En cada etapa del diseño muestral, se efectúa un pesaje para manejar el sesgo de selección. La presencia de trastornos psiquiátricos y la discapacidad son evaluados en el hogar, a través de la entrevista computarizada DISC-IV y de un cuestionario sobre variables socioeconómicas y familiares, junto al uso de los servicios. Las estimaciones de las tasas de prevalencia son obtenidas, por medio de un software, STATA 11.0, con diseño de muestra complejo. Se utilizó la regresión logística multivariada, para determinar qué factores eran los mejores predictores para trastornos mentales. La tasa de participación es del 82.4%. La prevalencia del TDAH es del 10%, y el subtipo de mayor prevalencia, es el hiperactivo / impulsivo, sin diferencias de género. Ambos subtipos hiperactivo/ impulsivo y combinado, demuestran mayor prevalencia en niños de 4-11 años, que en adolescentes. Las comorbilidades más frecuentes, son los trastornos de ansiedad y el trastorno oposicionista. La ansiedad, es la comorbilidad más frecuente del trastorno en las niñas y se correlacionó con el subtipo combinado. La percepción de un buen funcionamiento familiar, la edad de los adolescentes y la deserción escolar disminuyen el riesgo de presentar TDAH, mientras que el antecedente de maltrato lo aumenta. Más del 50% de los niños y adolescentes que han sido diagnosticados con TDAH, han utilizado servicios en el último año. Este es el primer estudio amplio en la comunidad, en trastornos psiquiátricos en niños y adolescentes, en un país de América del Sur. Ofrece información para programas de Salud Mental en Niños y Adolescentes en Chile y contribuye a la investigación epidemiológica transcultural. Palabras clave: Epidemiología psiquiátrica, Prevalencia del TDAH, Epidemiología transcultural, Psiquiatría del Niño y el Adolescente.

Prevalencia de intento de suicidio adolescente y factores de riesgo asociados en una comuna rural de la provincia de Concepción / Suicide attempts among Chilean adolescents

Background: Suicide mortality rates are increasing among teenagers. Aim: To study the prevalence and predictive factors of suicide attempts among Chilean adolescents. Material and Methods: A random sample of 195 teenagers aged 16 ± 1 years (53% males) answered an anonymous survey about their demographic features, substance abuse, the Osaka suicidal ideation questionnaire, Smilksten familial Apgar. Beck hopelessness scale, Beck depression scale and Coppersmith self-esteem inventory. Results: Twenty five percent of respondents had attempted suicide at least in one occasion during their lives. These attempts were significantly associated with female gender, absent parents, family dysfunction, drug abuse, smoking, low self-esteem, hopelessness, depression and recent suicidal ideation. A logistic regression analysis accepted female gender, smoking and recent suicidal ideation as significant independent predictors of suicide attempt. Conclusions: Suicide attempted is common among teenagers and its predictors are female sex, smoking and previous suicidal ideation.

Propiedades psicométricas de la escala de síntomas de TEPT para niños (CPSS) en población chilena afectada por el terremoto y tsunami del 27-F de 2010 / Psychometric properties of the children's posttraumatic symptoms scale in the earthquake and tsunamis chileans' victims

Existen pocos instrumentos para la evaluación de sintomatología postraumática en niños/as y adolescentes en Latinoamérica. El presente estudio analiza las propiedades psicométricas de la child PTSD Symptom Scale CPSS (Foa, Johnson, Feeny y Treadwell, 2001), en niños y niñas víctimas de un desastre natural. Se realizan los análisis psicométricos habituales, incluyendo un análisis factorial exploratorio y uno confirmatorio. Se analiza la convergencia de la escala CPSS con el diagnóstico de TEPT a través de la entrevista estructurada DISC-IV Una estructura de tres factores de primer orden fue la que mostró mejor ajuste en el análisis confirmatorio. La escala mostró alta consistencia interna. Un puntaje de 24 o más puntos permite obtener una sensibilidad de 82 por ciento y especificidad de 88 por ciento respecto del diagnóstico de TEPT con el DISC-IV Estas positivas cualidades psicométricas indican la utilidad de la escala para ser usada en chile con niños/ as y adolescentes expuestos a desastres naturales.

There are not many instruments about evaluation of post Traumatic symptomatology in Latin-American children and adolescents. The current study analyzes the psychometric properties of the child PTSD Symptom Scale CPSS (Foa, Johnson, Feeny y Treadwell, 2001), among young victims of a natural disaster. Regular psychometric analyses were carried out, including an exploratory and confirmatory factor analysis of the instrument. The structured interview DISC-IV was used as a criterion test. An structure of three first order factors showed the best fit. The scale presented high internal consistency. A score of 24 or more points allowed a sensitivity of 82 percent and a specificity of 88 percent according to DISC-IV. These positive psychometric qualities indicate the utility of this scale to be used in chilean children and adolescents.

Desarrollo y validación de un algoritmo para predecir riesgo de depresión en consultantes de atención primaria en Chile / Development of an algorithm to predict the incidence of major depression among primary care consultants

Background: The reduction of major depression incidence is a public health challenge. Aim: To develop an algorithm to estimate the risk of occurrence of major depression in patients attending primary health centers (PHC). Material and Methods: Prospective cohort study of a random sample of 2832 patients attending PHC centers in Concepción, Chile, with evaluations at baseline, six and twelve months. Thirty nine known risk factors for depression were measured to build a model, using a logistic regression. The algorithm was developed in 2,133 patients not depressed at baseline and compared with risk algorithms developed in a sample of 5,216 European primary care attenders. The main outcome was the incidence of major depression in the follow-up period. Results: The cumulative incidence of depression during the 12 months follow up in Chile was 12%. Eight variables were identified. Four corresponded to the patient (gender, age, depression background and educational level) and four to patients' current situation (physical and mental health, satisfaction with their situation at home and satisfaction with the relationship with their partner). The C-Index, used to assess the discriminating power of the final model, was 0.746 (95% confidence intervals (CI = 0,707-0,785), slightly lower than the equation obtained in European (0.790 95% CI = 0.767-0.813) and Spanish attenders (0.82; 95% CI = 0.79-0.84). Conclusions: Four of the factors identified in the risk algorithm are not modifiable. The other two factors are directly associated with the primary support network (family and partner). This risk algorithm for the incidence of major depression provides a tool that can guide efforts towards design, implementation and evaluation of effectiveness of interventions to prevent major depression.

Factores asociados prospectivamente a sintomatología depresiva en adolescentes tempranos de sexo femenino / Factors Prospectively Associated with of Depressive Symptomatology in Early Female Adolescents

Este estudio analiza prospectivamente la relación entre soporte familiar, estilo inferencial depresogénico y rumiación negativa con sintomatología depresiva en adolescentes. Se focaliza en adolescentes de sexo femenino, donde la depresión es más prevalente. Participaron 142 estudiantes de primer año de secundaria, con un promedio de edad de 14.2 años. Las evaluaciones de seguimiento fueron a 6, 13 y 24 meses de la primera evaluación. Controlada la depresión inicial, se observó relación entre soporte familiar y estilo inferencial depresogénico con sintomatología depresiva. Los resultados respaldan las teorías cognitivas de la depresión e indican la importancia de considerar estos factores en los programas preventivos de depresión.

Family support, depressogenic inferential style and rumination were longitudinally analysed in a sample of female adolescents wherein depression is more prevalent compared to adolescente male population. The sample comprised a group of 142 first grade secondary school students, with an average age of 14.2 years. The assessment was undertaken 6, 13 and 24 months after the first evaluation. Controled the initial depression, results indicated a relationship between depressive symptomatology with family support and depressogenic inferential style. These results support the cognitive theories of depression and indicate the importance of considering these factors in depression preventive programs.

Salud mental infanto-juvenil en Chile y brechas de atención sanitarias / Prevalence of psychiatric disorders among Chilean children and adolescents

Background: Psychiatric disorders that appear during childhood or adolescence should be a public health priority. Aim: To report the results of a national representative survey in the Latin American region examinig the prevalence of DSM-IV psychiatric disorders in children and adolescents. Material and Methods: Subjects aged 4 to 18 years were selected using a stratified multistage design. The Diagnostic Interview Schedule for Children Version IV (DISC-IV) was used to obtain 12-month DSM-IV diagnoses, and was supplemented with questionnaires examining family riskfactors, socioeconomic status and service use. Results: A sample of1558 children and adolescents (51% males) was evaluated. Fifty three percent of the sample were children aged 4 to 11 years and the rest were adolescents aged 12 to 18 years. The prevalence rate for any psychiatric disorder without impairment was 38.3% (33.5% for boys and 43.3% for girls). The prevalence rate was higher among children as compared to adolescents (42.9% and 33.2%, respectively). A third of participants receiving a diagnosis sought some form of assistance. Nearly a quarter of those using services, did not have a psychiatric diagnosis in the past year. Comorbidity was found in 27% of those with a disorder, but only 7% had three or more diagnoses. Conclusions: The prevalence of psychiatric disorders in Chile is high among children and adolescents. This study highlights the increasing need to re-evaluate mental health services provided to children and adolescents in our country.

Evaluación de la eficacia de un programa preventivo para la depresión en adolescentes de sexo femenino / Evaluation of the efficacy of a prevention program for depression in female adolescents

Se evalúa el efecto de un programa preventivo de depresión aplicado a adolescentes de sexo femenino que cursaban primero medio. Este programa fue implementado en dos modalidades: 1) Indicada, aplicado a participantes con sintomatología depresiva subumbral (grupo experimental n=101; grupo control n=108), y 2) Universal, aplicado a cursos completos sólo de niñas (grupo experimental=119 participantes; grupo control n=118). El programa tuvo 11 sesiones, de 1,5 hora de duración, con 15 a 23 participantes por grupo. Se evaluó el efecto del programa en depresión, en ansiedad, conductas de autodaño y conductas externalizadas. El programa no mostró efectos en ninguna de sus dos modalidades de implementación. La modalidad indicada fue más satisfactoria para las participantes. Se comentan las limitaciones del estudio y sus proyecciones para el desarrollo de programas preventivos.

This study assesses the impact of a preventive program of depression in female adolescents from first grade of secondary school. The program was implemented in two ways: 1) Indicated: Applied to patients with subthreshold depressive symptoms (experimental group N=101; control group N=108) 2) Universal applied to a class comprised only by girls (experimental group=119; control group N=118). The program had 11 sessions, that lasted 1,5 hours each, with 15 to 23 participants per group. The impact of the program was measured in terms of anxiety, self-damage behavior, and externalized behavior. The program did not show effects in any of the two modalities. The Indicated modality obtained more satisfaction in the group of participants. The limitations of the study and implications for preventive programs in mental health are discussed.

Epidemiología de trastornos mentales infanto juveniles en la Provincia de Cautín / Prevalence of mental health disorders among children and adolescents living in southern Chile

Background: The knowledge about prevalence of psychiatric disorders in all age groups is fundamental to plan an adequate mental health care. Aim: To determine the prevalence of DSM-IV psychiatric disorders in a representative sample of children and adolescents living in the province of Cautin, Chile. Material and Methods: Subjects aged between 4 and 18 years were selected in an aleatory stratified multistage fashion. As part of a national sample, four counties in Cautín were selected, then blocks, homes and the child or adolescent to be interviewed. Psychology graduate students applied the Spanish computer version of DISC-IV, as well as a questionnaire on family risk factors, socioeconomic index and service use. Results: A sample of 272 children and adolescents was evaluated, obtaining 93,4 percent of participation. Using the most stringent impairment algorithm, the prevalence rate for any psychiatric disorder was 16.8 percent, being 16.5 percent in boys and 17.1 percent in girls and mainly explained by anxiety and affective disorders. Prevalence was practically the same in the group aged 4 to 11 years than in those aged 12 to 18 years (16.7 percent and 16.8 percent respectively). Prevalence of anxiety disorders was the highest, but less associated with impairment. On the other hand, all children and adolescents with affective disorders were impaired. Conclusions: The prevalence of psychiatric disorders in Cautín is high in children and adolescents.

Materialismo y su relación con soledad y maquiavelismo / Materialism and its relation with loneliness and machiavellianism

Este estudio analizó la relación entre materialismo, soledad y maquiavelismo. La muestra estuvo compuesta por 248 trabajadores chilenos (135 mujeres y 113 varones) con edades comprendidas entre los 18 y 70 años. Los resultados de los análisis de regresión lineal múltiple jerárquica muestran que el materialismo presenta relaciones tanto con la soledad como con el maquiavelismo, aun cuando se controlan variables sociodemográficas. De acuerdo con lo hipotetizado, se observó que los participantes más materialistas se caracterizaron por presentar mayores niveles de soledad y maquiavelismo.

This research analyzes the relation between materialism, loneliness and machiavellianism. The sample was conformed by 248 workers (135 females and 113 males) whose ages ranged from 18 to 70 years old. A hierarchical multiple lineal regression shows that materialism had a relation with both loneliness and machiavellianism, even when socio-demographic variables are controlled. According to was hypothesized, more materialistic participants are characterized by higher levels of loneliness and machiavellianism.