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Resumen Antecedentes: la alta prevalencia de depresión en la adolescencia y sus graves consecuencias, asociadas a su falta de detección y tratamiento, estimulan el interés en la investigación respecto a su prevención e intervención tempranas. Las intervenciones basadas en las tecnologías de la información y la comunicación (TIC), dada su flexibilidad y capacidad de difusión, representan oportunidades innovadoras; no obstante, en Latinoamérica hay poca evidencia sobre su impacto y eficacia. Objetivo y metodología: se realiza un estudio piloto cuantitativo cuasiexperimental que busca evaluar la factibilidad del programa basado en Internet "Cuida tu Ánimo", mediante las variables de uso y aceptabilidad, y la estimación del efecto, en 215 adolescentes (103 grupo activo, 112 grupo control) de dos instituciones educativas de la ciudad de Medellín. Se evaluaron las interacciones de los adolescentes con el Programa, su uso-aceptabilidad, el nivel de sintomatología depresiva y otros aspectos relacionados. Resultados: los adolescentes reportan alta aceptación y uso muy moderado del Programa. Señalan el aprendizaje sobre depresión y detección temprana del riesgo que les proporcionó el Programa; y recomiendan aumentar la interactividad de la plataforma web, generar contenidos más diversos y entretenidos, y aumentar los niveles de presencialidad de la intervención. Conclusiones: los programas basados en las TIC pueden ser un complemento favorable para la prevención e intervención tempranas de la depresión en adolescentes. Dada la dificultad de asociar la estimación del efecto del Programa con su uso, se recomienda en estudios futuros utilizar un diseño que permita relacionar los indicadores de uso con los de resultado (dosis-efecto).

Abstract Background: the high prevalence of depression in adolescence and its serious consequences, associated with its lack of detection and treatment, stimulate interest in research regarding its early prevention and intervention. Interventions based on information and communication technologies (ICT), given their flexibility and capacity for dissemination, represent innovative opportunities; however, in Latin America there is little evidence on their impact and efficacy. Objective and Methods: a quasi-experimental quantitative pilot study was carried out to evaluate the feasibility, through the variables of use and acceptability, and the estimated effect of the Internet-based program "Cuida tu Ánimo", in 215 adolescents (103 active group, 112 control group) from two educational institutions. The adolescents' interactions with the program, its use-acceptability, and the level of depressive symptomatology and other related aspects were evaluated. Results: the adolescents report high acceptance and very moderate use of the Program. They point out that the program allowed them to learn about depression and early detection of risk; also, they recommend increasing the interactivity of the web platform, designing more diverse and entertaining content, and increasing the presence of the intervention. Conclusions: Internet-based programs such as Cuida tu Ánimo can be a favorable complement for the prevention and early intervention of depression in adolescents. Considering the difficulty in relating the estimation of the Program's effect with its use, it is recommended that future studies include a design that permits associating the use indicators with the outcome indicators (dose-effect).

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BACKGROUND: Internet-based interventions promise to enhance the accessibility of mental health care for a greater number of people and in more remote places. Their effectiveness has been shown for the prevention and treatment of various mental disorders. However, their potential when delivered as add-on to conventional treatment (ie, blended care) is less clear. OBJECTIVE: The aim of this study is to study the effectiveness of an internet intervention (ASCENSO) implemented in addition to face-to-face treatment as usual (TAU) for depression. METHODS: A 2-arm, parallel-group, randomized controlled trial was conducted in an outpatient private mental health care center in Chile. In all, 167 adults, diagnosed with major depressive disorder, without severe comorbidities, and with internet access, were included. Eighty-four participants were assigned to the intervention group and received medical and psychological TAU from the mental health center plus access to the ASCENSO online platform. The control group (n=83) received only TAU. The ASCENSO platform includes psycho-educational information, depressive symptom monitoring and feedback, and managing emergencies based on the principles of cognitive behavioral therapy. Emergency management was mental health provider-assisted. TAU includes access to primary care physicians and psychiatrists, to a brief individual psychotherapy, and to medication when needed. The baseline questionnaires were administered in person, and 6- and 9-months assessments were conducted online. Depression symptoms and quality of life were measured by self-administered questionnaires, and treatment adherence was determined via the Mental Health Center's internal records. The usage of ASCENSO was assessed by server logs. Reduction on depressive symptomatology was considered as the primary outcome of the intervention and quality of life as a secondary outcome. RESULTS: Of the 84 participants in the intervention group, 5 participants (6%) never accessed the online platform. Of the remaining 79 participants who accessed ASCENSO, 1 (1%, 1/79) did not answer any of the symptom questionnaire, and most participants (72/79, 91%) answered the monitoring questionnaires irregularly. The ASCENSO intervention implemented in addition to face-to-face care did not improve the outcome of the usual care delivered at the mental health center, either in terms of reduction of depressive symptoms (F2,6087= 0.48; P=.62) or in the improvement of quality of life (EQ-5D-3L: F2,7678=0.24; P=.79 and EQ-VAS: F2,6670= 0.13; P=.88). In contrast, for the primary (F2,850=78.25; P<.001) and secondary outcomes (EQ-5D-3L: F2,1067=37.87; EQ-VAS: F2,4390= 51.69; P<.001) in both groups, there was an improvement from baseline to 6 months (P<.001), but there was no change at 9 months. In addition, no effects on adherence to or use of TAU were found. Finally, the dropout rate for the face-to-face treatment component was 54% (45/84) for the intervention group versus 39% (32/83) for the control group (P=.07). CONCLUSIONS: The fact that the adjunctive access to ASCENSO did not improve outcome could be due to both the rather high effectiveness of TAU and to patients' limited use of the online platform. TRIAL REGISTRATION: ClinicalTrials.gov NCT03093467; https://clinicaltrials.gov/ct2/show/NCT03093467.

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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.

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Background: "Cuida tu Ánimo" (CTA [Take Care of Your Mood]) is an internet-based program for prevention and early intervention of adolescent depression implemented in Chile and Colombia. In the pilot application of the program, participants interacted with the program through a website that provided psychoeducational information, chat, and telephone appointments as well as monitoring and feedback messages. To date, most similar programs were not developed taking design features into consideration. The persuasive systems design (PSD) model is a comprehensive framework developed to aid in the design and evaluation of systems capable of influencing users' attitudes or behaviors. The purpose of this study was to evaluate the persuasiveness of CTA pilot program using the PSD model. Methods: The methodology used was expert evaluation, where specialists evaluate the program against a list of design principles. Results: Although the PSD model was not used to design the program, system features proposed by PSD were present, mainly "Dialogue support" features. Persuasion context analysis was not carried out by the developers. No aspects of the program could be related to "Primary task support" features because the developers did not define a primary task. Discussion: Key aspects of the PSD model could be incorporated in the CTA program to enhance system persuasiveness and improve adherence.

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BACKGROUND: The worldwide emergence of multi-drug resistant bacteria has become a health crisis, as fewer or sometimes no antimicrobial agents are effective against these bacteria. The Rio Grande River is the natural boundary between the United States (US) and Mexico. It spans a border region between Texas, New Mexico and Mexico. Underserved populations on the Mexican side use the river for recreational purposes, while on the US side, the river is used for irrigation and as a source of drinking water. OBJECTIVES: The purpose of the present study was to evaluate the concentration of antibiotic residues, to determine the presence of genetic elements conferring antibiotic resistance and to characterize multi-drug resistant bacteria in the waters of the Rio Grande River. METHODS: Water samples were obtained from the Rio Grande River. Deoxyribonucleic acid (DNA) was extracted from both isolated bacteria and directly from the water. Amplification of selected genetic elements was accomplished by polymerase chain reaction. Identification and isolation of bacteria was performed through MicroScan autoSCAN-4. Fecal contamination was assessed by IDEXX Colilert. Antibiotic residues were determined by liquid chromatography and mass spectrometry. RESULTS: Antibiotics were found in 92% of both water and sediment samples. Antibiotic concentrations ranged from 0.38 ng/L - 742.73 ng/L and 0.39 ng/l - 66.3 ng/g dry weight in water and sediment samples, respectively. Genetic elements conferring resistance were recovered from all collection sites. Of the isolated bacteria, 91 (64.08%) were resistant to at least two synergistic antibiotic combinations and 11 (14.79%) were found to be resistant to 20 or more individual antibiotics. Fecal contamination was higher during the months of April and July. CONCLUSIONS: The 26 km segment of the Rio Grande River from Sunland Park NM to El Paso, TX and Juarez, Mexico is an area of concern due to poor water quality. The presence of multidrug resistant bacteria, antibiotics and mobile genetic elements may be a health hazard for the surrounding populations of this binational border region. Policies need to be developed for the appropriate management of the environmental natural resources in this border region. COMPETING INTERESTS: The authors declare no competing financial interests.

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BACKGROUND: In the treatment of depression, primary care teams have an essential role, but they are most effective when inserted into a collaborative care model for disease management. In rural areas, the shortage of specialized mental health resources may hamper management of depressed patients. OBJECTIVE: The aim was to test the feasibility, acceptability, and effectiveness of a remote collaborative care program for patients with depression living in rural areas. METHODS: In a nonrandomized, open-label (blinded outcome assessor), two-arm clinical trial, physicians from 15 rural community hospitals recruited 250 patients aged 18 to 70 years with a major depressive episode (DSM-IV criteria). Patients were assigned to the remote collaborative care program (n=111) or to usual care (n=139). The remote collaborative care program used Web-based shared clinical records between rural primary care teams and a specialized/centralized mental health team, telephone monitoring of patients, and remote supervision by psychiatrists through the Web-based shared clinical records and/or telephone. Depressive symptoms, health-related quality of life, service use, and patient satisfaction were measured 3 and 6 months after baseline assessment. RESULTS: Six-month follow-up assessments were completed by 84.4% (221/250) of patients. The remote collaborative care program achieved higher user satisfaction (odds ratio [OR] 1.94, 95% CI 1.25-3.00) and better treatment adherence rates (OR 1.81, 95% CI 1.02-3.19) at 6 months compared to usual care. There were no statically significant differences in depressive symptoms between the remote collaborative care program and usual care. Significant differences between groups in favor of remote collaborative care program were observed at 3 months for mental health-related quality of life (beta 3.11, 95% CI 0.19-6.02). CONCLUSIONS: Higher rates of treatment adherence in the remote collaborative care program suggest that technology-assisted interventions may help rural primary care teams in the management of depressive patients. Future cost-effectiveness studies are needed. TRIAL REGISTRATION: Clinicaltrials.gov NCT02200367; https://clinicaltrials.gov/ct2/show/NCT02200367 (Archived by WebCite at http://www.webcitation.org/6xtZ7OijZ).

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BACKGROUND: Major depression is a highly prevalent and severe mental disease. Despite the effective treatment options available, the risk of relapse is high. Interventions based on information and communication technologies generate innovative opportunities to provide support to patients after they completed treatment for depression. MATERIALS AND METHODS: This acceptability study evaluated the Internet-based program Apoyo, Seguimiento y Cuidado de Enfermedades a partir de Sistemas Operativos (ASCENSO) in terms of its feasibility and acceptability in a sample of 35 patients in Chile. RESULTS: The study reveals high rates of acceptance and satisfaction among patients who actively used the program. As obstacles, patients mentioned technical problems, a lack of contact with other participants, and an insufficient connection between the program and the health service professionals. CONCLUSIONS: ASCENSO appears to be a promising complement to regular care for depression. Following improvements of the program based on participants' feedback, future research should evaluate its efficacy and cost-effectiveness.

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High rates of relapses are common in eating disorder patients after achieving the status of remission. The lack of support after completing a treatment can contribute to relapse. Therefore aftercare programs are needed to maintain the benefits of treatment, to reduce the risk of relapse, and to stabilize patients' well-being. This paper describes the Internet-based aftercare program ACTUA (Continued Support for Eating Disorders) developed to support patients with bulimia nervosa in Mexico. ACTUA is an adaptation of the program EDINA (Internet-based maintenance treatment for eating disorders) which was developed and evaluated in Hungary. In this paper we first describe the intervention which consists of different modules including a monitoring and feedback tool, forums, and counseling chat with a clinician. In the second part, we report on first experiences following the introduction of the program in two treatment centers in Mexico (Monterrey and Mexico City). Fifteen patients participated in a semi-structured interview assessing perceived benefits of participating in ACTUA as well as barriers that prevented patients from joining the program. Implications for the implementation of Internet-based interventions in Mexico are discussed.

Las elevadas tasas de recaída son comunes en los pacientes con trastornos de la conducta alimentaria una vez que se les ha dado de alta de un tratamiento. La falta de apoyo después de terminado el tratamiento puede contribuir a las recaídas. Por lo tanto, los programas de seguimiento son necesarios para mantener los beneficios obtenidos en el tratamiento, para reducir el riesgo de recaídas y para estabilizar el bienestar de los pacientes. Este trabajo describe el programa de seguimiento en línea ACTUA (Apoyo Continuo para Trastornos Alimentarios), desarrollado para dar apoyo a pacientes con bulimia nerviosa en México. ACTUA es una adaptación del programa EDINA (Programa de seguimiento en línea para trastornos alimentarios), que fue desarrollado y evaluado en Hungría. En este trabajo se describe primero la intervención, que consiste en diferentes módulos, incluyendo una herramienta de monitorización y retroalimentación, foro y un chat con un clínico para obtener supervisión. En la segunda parte se reportan las primeras experiencias después de la introducción del programa en 2 centros de tratamiento en México (Monterrey y Ciudad de México). Quince pacientes participaron en una entrevista semi-estructurada, que evaluó la percepción de los beneficios obtenidos de participar en ACTUA, así como las barreras que impidieron que los pacientes participaran en el programa. Se discuten las implicaciones que tiene en México la implementación de un programa en línea.