Clinical research diagnostic criteria for bipolar illness (CRDC-BP): rationale and validity.

BACKGROUND: In the 1970 s, scientific research on psychiatric nosology was summarized in Research Diagnostic Criteria (RDC), based solely on empirical data, an important source for the third revision of the official nomenclature of the American Psychiatric Association in 1980, the Diagnostic and Statistical Manual, Third Edition (DSM-III). The intervening years, especially with the fourth edition in 1994, saw a shift to a more overtly "pragmatic" approach to diagnostic definitions, which were constructed for many purposes, with research evidence being only one consideration. The latest editions have been criticized as failing to be useful for research. Biological and clinical research rests on the validity of diagnostic definitions that are supported by firm empirical foundations, but critics note that DSM criteria have failed to prioritize research data in favor of "pragmatic" considerations. RESULTS: Based on prior work of the International Society for Bipolar Diagnostic Guidelines Task Force, we propose here Clinical Research Diagnostic Criteria for Bipolar Illness (CRDC-BP) for use in research studies, with the hope that these criteria may lead to further refinement of diagnostic definitions for other major mental illnesses in the future. New proposals are provided for mixed states, mood temperaments, and duration of episodes. CONCLUSIONS: A new CRDC could provide guidance toward an empirically-based, scientific psychiatric nosology, and provide an alternative clinical diagnostic approach to the DSM system.

Tratamiento de la depresión en adultos con estrés adverso temprano: revisión sistemática de su efecto en síntomas relacionados a trauma, ansiedad, desajuste social y calidad de vida / Systematic review of treatment alternatives for depressed adults with early adverse stress

BACKGROUND: Early adverse stress is a risk factor for the appearance of mental health ailments during adulthood. AIM: To systematically review treatment outcomes on mental health symptoms and functional domains, and of interventions aimed at treating adults with depressive disorders and early adverse stress (EAS). MATERIAL AND METHODS: Systematic review and meta-analysis including experimental and quasi-experimental published studies indexed in the CINAHL, EMBASE, PubMed, and Web of Science databases, which explored the effectiveness of treatment interventions for depressive disorders in adults exposed to EAS. Data on outcomes was extracted from the included studies. A narrative, qualitative approach or a quality-effects model for meta-analysis were used for synthesizing these data. RESULTS: Thirteen studies were included. Psychological or combined treatment interventions for depression in adults exposed to EAS may be effective in reducing trauma-related symptoms and social dysfunction in the short-and mid-term, with small effect size and without substantive heterogeneity. The assessment of anxiety symptoms and health-related quality of life yielded mixed results. CONCLUSIONS: Despite the ubiquity of EAS and its adverse and long-lasting consequences for well-being and health, treatment alternatives are scant. This review suggests that there are treatment interventions for depression in adults exposed to EAS that may achieve integral mental health benefits, alleviating its impact on various symptoms and functional domains, when EAS is explicitly considered in the treatment intervention.

Safety and Efficacy of Adjunctive Second-Generation Antidepressant Therapy With A Mood Stabiliser or an Atypical Antipsychotic in Acute Bipolar Depression: Randomised Systematic Review and Meta-Analysis of A Placebo-Controlled Trials.

(Reprinted with permission from Lancet Psychiatry 2016; 3: 1138-46).

Feasibility and Acceptability of "Cuida tu Ánimo" (Take Care of Your Mood): An Internet-Based Program for Prevention and Early Intervention of Adolescent Depression in Chile and Colombia.

The rapid internet penetration in Latin American countries has made it possible to implement digital mental health interventions. "Cuida tu Ánimo" (Take Care of Your Mood) is an internet-based program for the prevention and early intervention of depression in adolescents. A pilot study was conducted in Chile and Colombia to study the feasibility and acceptability of the program and estimate its effects. There were 199 participants (53.3% women; mean age = 14.8 years, SD = 1.0) recruited from two schools in Chile and two schools in Colombia. Qualitative and quantitative methods were applied for data collection and analyses. Although the levels of acceptance were moderate to high across all variables, adherence was lower than expected. The participants deemed important for an intervention of this type offered a higher level of interaction with team members through internet-based and face-to-face activities. Post-intervention outcomes show a reduction in depressive and anxious symptoms in adolescents in Chile, while there were no significant changes in the level of symptomatology in adolescents in Colombia. The women used the program more than the men. Results show the need to improve the intervention by increasing its levels of customization and developing strategies to achieve better adherence. The contradictory results of the program in Chile and Colombia suggest the importance of other variables beyond the content of the intervention, such as the setting or context of the intervention.

A collaborative, computer-assisted, psycho-educational intervention for depressed patients with chronic disease at primary care: protocol for a cluster randomized controlled trial.

BACKGROUND: Depression and chronic diseases are frequently comorbid public health problems. However, clinical guidelines often fail to consider comorbidities. This study protocol describes a cluster randomized trial (CRT) aimed to compare the effectiveness of a collaborative, computer-assisted, psycho-educational intervention versus enhanced usual care (EUC) in the treatment of depressed patients with hypertension and/or diabetes in primary care clinics (PCC) in Santiago, Chile. METHODS: Two-arm, single-blind, CRT carried out at two municipalities in Santiago, Chile. Eight PCC will be randomly assigned (1:1 ratio within each municipality, 4 PCC in each municipality) to the INTERVENTION or EUC. A total of 360 depressed patients, aged at least 18 years, with Patient Health Questionnaire-9 Item [PHQ-9] scores ≥15, and enrolled in the Cardiovascular Health Program at the participating PCC. Patients with alcohol/substance abuse; current treatment for depression, bipolar disorder, or psychosis; illiteracy; severe impairment; and resident in long-term care facilities, will be excluded. Patients in both arms will be invited to use the Web page of the project, which includes basic health education information. Patients in the INTERVENTION will receive eight sessions of a computer-assisted, psycho-educational intervention delivered by trained therapists, a structured telephone calls to monitor progress, and usual medical care for chronic diseases. Therapists will receive biweekly and monthly supervision by psychologist and psychiatrist, respectively. A monthly meeting will be held between the PCC team and a member of the research team to ensure continuity of care. Patients in EUC will receive depression treatment according to clinical guidelines and usual medical care for chronic diseases. Outcome assessments will be conducted at 3, 6, and 12 months after enrollment. The primary outcome will be depression improvement at 6 months, defined as ≥50% reduction in baseline PHQ-9 scores. Intention-to-treat analyses will be performed. DISCUSSION: This study will be one of the first to provide evidence for the effectiveness of a collaborative, computer-assisted, psycho-educational intervention for depressed patients with chronic disease at primary care in a Latin American country. TRIAL REGISTRATION: retrospectively registered in ClinicalTrials.gov , first posted: November 3, 2020, under identifier: NCT04613076 .

Population-attributable risk of adverse childhood experiences for high suicide risk, psychiatric admissions, and recurrent depression, in depressed outpatients.

Background: Population-attributable risk (PAR) may help estimate the potential contribution of adverse childhood experiences (ACEs) to serious clinical presentations of depression, characterized by suicidality, previous psychiatric admissions, and episode recurrence. Objective: To determine the PAR of ACEs for serious clinical presentations of depression (high suicide risk, previous psychiatric admissions, and recurrent depression) in outpatients with ICD-10 clinical depression. Method: Systematic chart review of 1,013 adults who were assessed and/or treated in a mental health clinic in Santiago, Chile for a major depressive episode. Data were collected on demographics and clinical characteristics of depression. Exposure to ACEs was determined with the Brief Physical and Sexual Abuse Questionnaire, assessing seven types of ACEs. Multivariable logistic regression analysis was used to assess the association between exposure to ACEs and suicidality, previous psychiatric admissions, and recurrence. Predicted probabilities were used for calculations of PAR. Results: Of the 1,001 study participants with complete data, 53.3% had recurrent depression, 13.5% had high suicide risk, and 5.0% had previous psychiatric admissions. Exposure to at least one ACE was recorded for 69.0% of the sample. Exposure to at least one ACE and specific types of ACEs (i.e. childhood sexual abuse and traumatic separation from caregiver) were associated with serious clinical presentations of depression. A dose-response relationship was observed between cumulative exposure to ACEs and the most serious clinical presentations of depression. ACEs were attributed to a significant proportion of disease: 61.6% of previous psychiatric admissions, 45.0% of high suicide risk, and 14.5% of recurrent depression. Conclusions: A substantial proportion of serious clinical presentations of depression among outpatients are associated with ACEs. Early detection of depressive episodes associated with ACEs, and tailored treatment for these patients, may potentially reduce the incidence of serious complications in this population.

Introducción: El riesgo atribuible poblacional (RAP) puede ayudar a estimar la potencial contribución de las experiencias adversas infantiles (EAIs) a las presentaciones clínicas serias de la depresión, caracterizadas por riesgo suicida, hospitalizaciones psiquiátricas previas y recurrencia de episodios.Objetivo: Determinar el RAP de las EAIs para las presentaciones clínicas serias de la depresión (alto riesgo suicida, hospitalizaciones psiquiátricas previas y depresión recurrente) en pacientes deprimidos ambulatorios.Método: Revisión sistemática de fichas clínicas de 1.013 adultos que fueron evaluados y/o tratados en una clínica de salud mental en Santiago, Chile por un episodio depresivo mayor. Se recolectaron datos demográficos y sobre características clínicas de la depresión. La exposición a EAIs se determinó con el Brief Physical and Sexual Abuse Questionnaire, evaluándose siete tipos de EAIs. Se usó análisis de regresión logística multivariada para evaluar la asociación entre exposición a EAIs y riesgo suicida, hospitalizaciones psiquiátricas previas y recurrencia. Las probabilidades predichas fueron utilizadas para los cálculos de los RAP.Resultados: De 1.001 participantes del estudio con datos completos, 53,3% tuvieron una depresión recurrente, 13,5% tuvieron alto riesgo suicida, y 5,0% tuvieron hospitalizaciones psiquiátricas previas. La exposición a al menos un EAI se registró en 69,0% de la muestra. La exposición a al menos un EAI y tipos específicos de EAIs (i.e. abuso sexual infantil y la separación traumática del cuidador), se asociaron con presentaciones clínicas serias de la depresión. Se observó una relación dosis-respuesta entre la exposición cumulativa a EAIs y las presentaciones clínicas más serias de la depresión. Las EAIs se atribuyeron una proporción significativa de la enfermedad: 61,6% de las hospitalizaciones psiquiátricas previas, 45,0% del alto riesgo suicida, y 14,5% de depresión recurrente.Conclusiones: Una proporción sustancial de presentaciones clínicas serias de la depresión en pacientes deprimidos ambulatorios se asocian con EAIs. La detección temprana de los episodios depresivos asociados con EAIs y el tratamiento a la medida para estos pacientes podrían potencialmente reducir la incidencia de complicaciones serias en esta población.

Early Adverse Stress and Depressive and Bipolar Disorders: A Systematic Review and Meta-Analysis of Treatment Interventions.

Introduction: A significant proportion of adults with depressive or bipolar disorders exposed to early adverse stressors do not adequately respond to standard treatments. This review aimed at synthesizing the evidence on the effectiveness of treatment interventions for depressive or bipolar disorders in adult individuals (aged 18 years or more) exposed to adverse stress early in life. Methods: Systematic review and meta-analysis including experimental and quasi-experimental published studies indexed in CINAHL, EMBASE, PubMed, and Web of Science databases and/or in reference lists. Data management and critical appraisal (with the Study Quality Assessment Tools) was conducted independently by multiple researchers. A quality-effects model for meta-analysis was used for data synthesis and publication bias was assessed using the Doi plot and LFK index. The main outcome was short-term reductions in depressive symptoms. Results: Eight randomized controlled trials, three controlled before-and-after (pre-post) studies, and three uncontrolled before-and-after studies were included. Studies lacked bipolar disorder patients. Unclear randomization procedures and reporting of blinded outcome assessor, and limited use of intention-to-treat analysis, were relevant potential sources of bias. Meta-analyses indicated that psychological, pharmacological, and combined interventions were effective in reducing depressive symptoms in the short- (Cohen's d = -0.55, 95% CI -0.75 to -0.36, I 2 = 0%) and mid-term (Cohen's d = -0.66, 95% CI -1.07 to -0.25, I 2 = 65.0%). However, a high risk of publication bias was detected for these outcomes. A small number of studies, with mixed results, reported interventions with long-term improvements in depressive symptomatology, and short- and mid-term response to treatment and remission. Conclusion: Despite the well-documented long-lasting, negative, and costly impact of early adverse stressors on adult psychopathology, evidence on treatment alternatives remains scant. Trauma-focused treatment interventions-whether psychological interventions alone or in combination with pharmacotherapy-may have the potential to reduce the severity of depressive symptom in adults who were exposed to early adverse stress. Findings must be interpreted with considerable caution, as important study and outcome-level limitations were observed and gray literature was not considered in this systematic review and meta-analysis.

The contribution of early adverse stress to complex and severe depression in depressed outpatients.

BACKGROUND: To assess whether linear effects or threshold effects best describe the association between early adverse stress (EAS) and complex and severe depression (i.e., depression with treatment resistance, psychotic symptoms, and/or suicidal ideation), and to examine the attributable risk of complex and severe depression associated with EAS. METHODS: A cross-sectional study was conducted using deidentified clinical data (on demographics, presence of complex and severe depression, and exposure to seven types of EAS) from 1,013 adults who were seen in an outpatient mental health clinic in Santiago, Chile, for a major depressive episode. Multivariate logistic regressions were fitted to estimate odds ratios (ORs), using a bootstrap approach to compute 95% bias-corrected confidence intervals (95% BC CIs). A detailed examination of the cumulative risk score and calculations of the attributable risk was conducted. RESULTS: Exposure to at least five EASs was reported by 3.6% of the sample. In the multivariate logistic regression models, there was a marked increase in the odds of having complex and severe depression associated with exposure to at least five EASs (OR = 4.24; 95% BC CI: 1.25 to 9.09), according to a threshold effect. The attributable risk of complex and severe depression associated with exposure to at least one EAS was 36.8% (95% BC CI: 17.7 to 55.9). CONCLUSIONS: High levels of EAS distinctively contribute to complex clinical presentations of depression in adulthood. Patients with complex clinical presentations of depression and history of EAS should need a differentiated treatment approach, particularly those having high levels of EAS.

Citalopram for Acute and Preventive Efficacy in Bipolar Depression (CAPE-BD): A Randomized, Double-Blind, Placebo-Controlled Trial.

OBJECTIVE: To assess the efficacy and safety of citalopram in the acute and maintenance phases of bipolar depression in a randomized, double-blind, placebo-controlled trial. METHODS: Between 2007 and 2014, 119 subjects with acute major depressive episodes diagnosed with DSM-IV bipolar disorder, type I or type II, were randomized blindly to citalopram or placebo, added to standard mood stabilizers. They were followed for 6 weeks for acute efficacy (primary outcome) and up to 1 year for maintenance efficacy (secondary outcome) using scores on the Montgomery-Asberg Depression Rating Scale (MADRS) and the Mania Rating Scale of the Schedule for Affective Disorders and Schizophrenia (MRS-SADS). The study was powered for a clinically meaningful effect size. RESULTS: Mean ± SD MADRS scores changed from a baseline value of 27.4 ± 9.1 to 13.1 ± 8.4 at the end of the acute phase for citalopram versus a change from 27.4 ± 7.3 to 15.2 ± 9.9 for placebo, a clinically and statistically nonsignificant difference. Maintenance efficacy also was not better with citalopram than with placebo. Acute manic/hypomanic episodes were similar in both groups, and subjects with type II illness did not have better outcomes than subjects with type I illness. In maintenance treatment, MRS-SADS scores were greater overall, especially in subjects with a rapid-cycling illness course, with citalopram versus placebo. CONCLUSIONS: Citalopram, added to standard mood stabilizers, did not have clinically meaningful benefit versus placebo for either acute or maintenance treatment of bipolar depression. Acute mania did not worsen with citalopram, but maintenance treatment led to worsened manic symptoms, especially in subjects with a rapid-cycling course. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT00562861.

[Systematic review of treatment alternatives for depressed adults with early adverse stress]. / Tratamiento de la depresión en adultos con estrés adverso temprano: revisión sistemática de su efecto en síntomas relacionados a trauma, ansiedad, desajuste social y calidad de vida.

BACKGROUND: Early adverse stress is a risk factor for the appearance of mental health ailments during adulthood. AIM: To systematically review treatment outcomes on mental health symptoms and functional domains, and of interventions aimed at treating adults with depressive disorders and early adverse stress (EAS). MATERIAL AND METHODS: Systematic review and meta-analysis including experimental and quasi-experimental published studies indexed in the CINAHL, EMBASE, PubMed, and Web of Science databases, which explored the effectiveness of treatment interventions for depressive disorders in adults exposed to EAS. Data on outcomes was extracted from the included studies. A narrative, qualitative approach or a quality-effects model for meta-analysis were used for synthesizing these data. RESULTS: Thirteen studies were included. Psychological or combined treatment interventions for depression in adults exposed to EAS may be effective in reducing trauma-related symptoms and social dysfunction in the short-and mid-term, with small effect size and without substantive heterogeneity. The assessment of anxiety symptoms and health-related quality of life yielded mixed results. CONCLUSIONS: Despite the ubiquity of EAS and its adverse and long-lasting consequences for well-being and health, treatment alternatives are scant. This review suggests that there are treatment interventions for depression in adults exposed to EAS that may achieve integral mental health benefits, alleviating its impact on various symptoms and functional domains, when EAS is explicitly considered in the treatment intervention.

Beyond the Categorical Distinction Between Borderline Personality Disorder and Bipolar II Disorder Through the Identification of Personality Traits Profiles.

BACKGROUND: The relationship between borderline personality disorder (BPD) and type-II bipolar disorder (BDII) is not clearly understood. Nevertheless, in clinical practice and research, most efforts focus on establishing a categorical distinction between the two. We propose using personality traits as a more informative strategy to describe them. METHODS: Five-Factor Model personality traits were measured in 73 individuals with either BPD or BDII. Latent class cluster analysis was applied to the sample. RESULTS: A three-cluster model resulted the best fit to the data, where all clusters had high neuroticism and low extraversion scores but differed widely on the other traits. The clusters' boundaries did not match the categorical diagnosis. CONCLUSIONS: Our sample showed significant heterogeneity on personality traits, which can have a relevant effect on the outcome of each disorder and that was not captured by the categorical diagnosis. Thus, we advocate for a multivariate approach as a better way to understand the relationship between BPD and BDII.

Development and validation of a three-item version of the Edinburgh Postnatal Depression Scale.

OBJECTIVE: To develop and validate a brief screening instrument for postpartum depression in resource-constrained primary care settings. METHOD: Secondary data analysis of a cohort of 305 mothers (Mdnage = 26) attending well-child check-ups in six primary care centers in Santiago, Chile, answered the Edinburgh Postnatal Depression Scale (EPDS), the 36-Item Short Form Health Survey, and the Mini International Neuropsychiatric Interview depression module. A predictive model for postpartum depression was built using logistic and least absolute shrinkage and selection operator regressions, with bootstrap validation. RESULTS: A three-item version of the EPDS exhibited excellent discriminative capacity (c statistic = 0.95) and showed no significant differences versus the full version of the EPDS (χ2 (1) = 1.75, p = .187). The best trade-off between sensitivity (92.86%) and specificity (86.70%) was achieved at a cut-off score of 8/9. CONCLUSIONS: The three-item version of the EPDS can save clinicians valuable time, which might potentially improve communication of results to patients.

Lurasidone Efficacy in Mixed Depressive States: A Comparison of Standard Rating Scales to the Koukopoulos Mixed Depression Rating Scale.

INTRODUCTION: A new mood rating scale for mixed states of depression along with manic-like excitatory symptoms, the Koukopoulos Mixed Depression Rating Scale (KMDRS), was assessed in a post hoc analysis of a randomized clinical trial of lurasidone versus placebo in major depressive disorder (MDD) with mixed features. METHODS: The KMDRS was compared with the Montgomery Asberg Depression Rating Scale (MADRS) and the Young Mania Rating Scale (YMRS). Item weighting was performed and compared with an original KMDRS validation data set. Weighting was used to provide imputed KMDRS scores in the lurasidone study, based on observed MADRS and YMRS scores. RESULTS: Standardized effect sizes were larger for MADRS (0.61) and YMRS (0.79) than for KMDRS (0.44, Cohen d). CONCLUSIONS: This analysis did not find that the KMDRS produced a larger effect size than the MADRS in Diagnostic and Statistical Manual for Mental Disorder-5 (DSM-5) defined MDD with mixed features. The lower utility of KMDRS may be due to the imputed nature of this analysis, or also to the DSM-5 defined patient population, which may reflect mixed hypomania rather than mixed depression.

[Validation of the Childhood Trauma Questionnaire-Short Form in Chile]. / Validación de la versión en español del Childhood Trauma Questionnaire-Short Form en Chile, en una muestra de pacientes con depresión clínica.

BACKGROUND: Childhood Trauma Questionnaire-Short Form (CTQ-SF) is an instrument to assess child abuse and neglect Aim: to adapt and confirm the psychometric properties of the Spanish version of the CTQ-SF in Chile. MATERIAL AND METHODS: The CTQ-SF was applied to 89 clinically depressed subjects (77.5% women) who consulted at an outpatient mental health clinic. Confirmatory factor analysis (CFA), reliability (Cronbach's α) tests, and convergent validity analyses with clinical markers of complex depression were carried out. RESULTS: The Chilean version of the CTQ-SF demonstrated an acceptable fit to a five-factor model, with adequate psychometric properties. The CFA revealed that a better fit to a five-factor model would be achieved after elimination of two items from the physical neglect scale, the less reliable scale of the questionnaire. The physical abuse scale discriminated between patients with a complex depression versus non-complex depression, and all the CTQ-SF's scales discriminated between patients with high suicide risk and/or history of psychiatric admissions versus those patients without this background. CONCLUSIONS: the Chilean version of the CTQ-SF shows evidence of structural and discriminant validity, and reliability, in a clinical sample. Better alternatives to specifically assess the physical neglect construct should be developed.

Effectiveness of Sleep Deprivation in Treating Acute Bipolar Depression as Augmentation Strategy: A Systematic Review and Meta-Analysis.

BACKGROUND: Bipolar disorder is a disabling disease characterized by the recurrence of mood episodes. Successful strategies for the acute treatment of bipolar depression are still a matter of controversy. Total sleep deprivation (TSD) has shown acute antidepressant effect; however, the prompt relapse of depressive symptoms after sleep recovery has been reported. Taking this into consideration, we aimed to address a twofold research question: what are the acute effects of adding TSD to pharmacological treatment and what are the acute and chronic effects of adding medications to TSD. METHODS: MEDLINE, Embase, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov databases were searched for clinical trials assessing bipolar depression and TSD. Two independent reviewers selected and classified 90 abstracts. The outcomes we assessed were change in Hamilton Depression Rating Scale (HDRS) or Montgomery-Asberg Depression Rating Scale (MADRS), sustained long-term response rate, treatment-emergent mania or hypomania, and tolerability (using dropout rates as a proxy). The compared groups were: TSD alone versus TSD plus medications and medications alone versus medications plus TSD. Data was analyzed using Stata 16.0. RESULTS: Patients treated with TSD plus medications compared with medications alone showed a significant decrease in depressive symptomatology after one week (SMD -0.584 [95% CI -1.126 to -0.042], p = 0.03. Also, a significant decrease in depressive symptomatology (SMD -0.894 [95% CI -1.388 to -0.399], p < 0.001) was found in the group with TSD plus medications compared with TSD alone, at the 10th day of treatment. We meta-analyzed the long-term effect of the TSD. It showed a sustained antidepressant effect (log OR = 2.365 (95% CI 0.95 to 3.779, p < 0.001) in the group where TSD was combined with medication when compared with patients treated only with TSD. Finally, no differences in tolerability (log OR = 0.234 (95% CI -1.164 to 1.632, p = 0.74) or affective switch were found. CONCLUSION: Adding TSD to medications to bipolar depression treatment resulted in an augmentation in acute response. We also found that medications have a positive impact in acute response when added to TSD. Furthermore, this higher response rate was maintained after 3 months while keeping Lithium therapy.

Validación de la versión en español del Childhood Trauma Questionnaire-Short Form en Chile, en una muestra de pacientes con depresión clínica / Validation of the Childhood Trauma Questionnaire-Short Form in Chile

Background: Childhood Trauma Questionnaire-Short Form (CTQ-SF) is an instrument to assess child abuse and neglect Aim: to adapt and confirm the psychometric properties of the Spanish version of the CTQ-SF in Chile. Material and Methods: The CTQ-SF was applied to 89 clinically depressed subjects (77.5% women) who consulted at an outpatient mental health clinic. Confirmatory factor analysis (CFA), reliability (Cronbach's α) tests, and convergent validity analyses with clinical markers of complex depression were carried out. Results: The Chilean version of the CTQ-SF demonstrated an acceptable fit to a five-factor model, with adequate psychometric properties. The CFA revealed that a better fit to a five-factor model would be achieved after elimination of two items from the physical neglect scale, the less reliable scale of the questionnaire. The physical abuse scale discriminated between patients with a complex depression versus non-complex depression, and all the CTQ-SF's scales discriminated between patients with high suicide risk and/or history of psychiatric admissions versus those patients without this background. Conclusions: the Chilean version of the CTQ-SF shows evidence of structural and discriminant validity, and reliability, in a clinical sample. Better alternatives to specifically assess the physical neglect construct should be developed.

Computer-Assisted Cognitive-Behavioral Therapy to Treat Adolescents With Depression in Primary Health Care Centers in Santiago, Chile: A Randomized Controlled Trial.

Introduction: Evidence from developed countries shows the efficacy of computer-assisted cognitive-behavioral therapy (cCBT) in addressing adolescent depression in home and/or school settings. This paper presents the results of a randomized controlled trial (RCT) of a brief therapist-guided cCBT intervention for adolescent depression in resource-constrained primary health care (PHC) settings. Material and methods: A multicenter, two-arm parallel-group, individually RCT with a 1:1 allocation ratio assigned 216 depressed adolescents (aged 15-19) attending four PHC centers in a low-income municipality of Santiago, Chile, to receive eight weekly face-to-face therapist-guided cCBT sessions by study therapists (N = 108), or to receive an enhanced usual care (EUC) intervention by trained PHC psychologists, encouraged to adhere to the national clinical guidelines for the management of depression (N = 108). Both groups received pharmacotherapy concordant with these guidelines. The primary outcome was the Beck Depression Inventory (BDI) at 4 months post-randomization, to assess depressive symptoms. BDI at 6 months post-randomization was a secondary outcome. Additional measures included patients' compliance, and satisfaction with different treatment components, at 6 months post-randomization. Main Results: The adjusted difference in mean BDI score between groups was -3.75 (95% CI -6.23 to -1.28; p = 0.003) at 4 months post-randomization. At 6 months post-randomization, the adjusted difference in mean BDI score between groups was -2.31 (95% CI -4.89 to 0.27; p = 0.078). The effect size was small-to-medium at 4 months post-randomization, d = 0.39 (0.12 to 0.67), and small and non-significant at 6 months post-randomization d = 0.29 (-0.00 to 0.59). Adolescents in the experimental treatment group were significantly more satisfied with treatment, with the PHC centers' facilities, with the psychological care received, and with non-professional staff than those in the comparator treatment group. Discussion: A brief therapist-guided cCBT eight-session intervention improves the response of depressed adolescents attending PHC centers at 4 months post-randomization. At 6 months post-randomization, the differences of between groups were not significant. Future research may focus on exploring strategies to sustain and increase response. Clinical trial registration: www.ClinicalTrials.gov, identifier NCT01862913 and URL: https://clinicaltrials.gov/ct2/show/NCT01862913.

[Screening depressive episodes in adolescents. Validation of the Patient Health Questionnaire-9 (PHQ-9)]. / Tamizaje de episodio depresivo en adolescentes. Validación del instrumento PHQ-9.

BACKGROUND: There is a paucity of validated instruments for screening depression in adolescent populations in Chile. AIM: To determine the diagnostic accuracy of the adolescent version of Patient Health Questionnaire-9 (PHQ-9). MATERIAL AND METHODS: The PHQ-9 was transculturally adapted and administered to adolescents aged 15 to 19 years residing in Santiago de Chile, who were then evaluated with a semi structured interview (Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version or K-SADS-PL) and the Beck Depression Inventory. Internal validity, concurrent validity, and discriminatory power of the PHQ-9 were analyzed. RESULTS: We evaluated 245 adolescents aged 16.2 ± 1 years (71% females). Two hundred and ten presented with a depressive episode and 35 were healthy. The sensitivity and specificity of the scale were 86.2 and 82.9% for 11 points, with a positive likelihood ratio of 5.02. CONCLUSIONS: The PHQ-9 is sensitive and specific enough to be used as a screening tool in adolescents with suspected depression. At a 11-point cut-off score as proposed, the likelihood to find a positive result in a subject with depression is five times higher.

Tamizaje de episodio depresivo en adolescentes: validación del instrumento PHQ-9 / Screening depressive episodes in adolescents: validation of the Patient Health Questionnaire-9 (PHQ-9)

Background: There is a paucity of validated instruments for screening depression in adolescent populations in Chile. Aim: To determine the diagnostic accuracy of the adolescent version of Patient Health Questionnaire-9 (PHQ-9). Material and Methods: The PHQ-9 was transculturally adapted and administered to adolescents aged 15 to 19 years residing in Santiago de Chile, who were then evaluated with a semi structured interview (Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version or K-SADS-PL) and the Beck Depression Inventory. Internal validity, concurrent validity, and discriminatory power of the PHQ-9 were analyzed. Results: We evaluated 245 adolescents aged 16.2 ± 1 years (71% females). Two hundred and ten presented with a depressive episode and 35 were healthy. The sensitivity and specificity of the scale were 86.2 and 82.9% for 11 points, with a positive likelihood ratio of 5.02. Conclusions: The PHQ-9 is sensitive and specific enough to be used as a screening tool in adolescents with suspected depression. At a 11-point cut-off score as proposed, the likelihood to find a positive result in a subject with depression is five times higher.

The Koukopoulos Mixed Depression Rating Scale (KMDRS): An International Mood Network (IMN) validation study of a new mixed mood rating scale.

BACKGROUND: It has been proposed that the broad major depressive disorder (MDD) construct is heterogenous. Koukopoulos has provided diagnostic criteria for an important subtype within that construct, "mixed depression" (MxD), which encompasses clinical pictures characterized by marked psychomotor or inner excitation and rage/anger, along with severe depression. This study provides psychometric validation for the first rating scale specifically designed to assess MxD symptoms cross-sectionally, the Koukopoulos Mixed Depression Rating Scale (KMDRS). METHODS: 350 patients from the international mood network (IMN) completed three rating scales: the KMDRS, Montgomery-Asberg Depression Rating Scale (MADRS) and Young Mania Rating Scale (YMRS). KMDRS' psychometric properties assessed included Cronbach's alpha, inter-rater reliability, factor analysis, predictive validity, and Receiver Operator Curve analysis. RESULTS: Internal consistency (Cronbach's alpha = 0.76; 95% CI 0.57, 0.94) and interrater reliability (kappa = 0.73) were adequate. Confirmatory factor analysis identified 2 components: anger and psychomotor excitation (80% of total variance). Good predictive validity was seen (C-statistic = 0.82 95% CI 0.68, 0.93). Severity cut-off scores identified were as follows: none (0-4), possible (5-9), mild (10-15), moderate (16-20) and severe (> 21) MxD. LIMITATIONS: Non DSM-based diagnosis of MxD may pose some difficulties in the initial use and interpretation of the scoring of the scale. Moreover, the cross-sectional nature of the evaluation does not verify the long-term stability of the scale. CONCLUSIONS: KMDRS was a reliable and valid instrument to assess MxD symptoms.