Browsing by Author "Santis, Rodrigo"

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    A family outreach intervention for engaging young out-of-treatment drug users: Pre- versus post-treatment comparison
    (2013) Santis, Rodrigo; Gloria Hidalgo, Carmen; Jaramillo, Andrea; Hayden, Viviana; Armijo, Ivan; Lasagna, Andrea
    Only a small fraction of drug users worldwide enter treatment each year. We evaluated the efficacy of a systemic family outreach intervention (SFOI) for young, untreated drug users, using a quasi-experimental design in which the experimental group (EG) received SFOI and the control group (CG) received traditional outreach work (OW). Both pre- and post-treatment, we administered the Addiction Severity Index-6 (ASI-6), the Family Environment Scale (FES), and tests of parental practices and risky behavior. Post-treatment, there was a fivefold improvement on the ASI-6 and a significant worsening on the conflict sub-scale of the FES in the EG as compared with the CG. SFOI was more efficacious than OW in reducing drug use in the drug user's home environment. The increased conflict in the EG might be explained by parents' increased awareness of abnormal behaviors and implementation of strategies to protect their children. (C) 2013 Elsevier Inc. All rights reserved.
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    Intentos de suicidio y heridas auto-inferidas: 12 meses de seguimiento de conductas de riesgo de consumidores de cocaína no consultantes de servicios de rehabilitación
    (2016) Santis, Rodrigo; Hidalgo, Carmen Gloria; Hayden, Viviana; Anselmo, Enzo; Jaramillo, Andrea; Padilla Pérez, Oslando; Torres Barrenechea, Rafael
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    Key aspects for successful performance of community agents in outreach interventions with young drug users
    (2014) Jaramillo, A.; Hidalgo, C. G.; Armijo Rodríguez, Iván Alejandro; Hayden, V.; Santis, Rodrigo; Lasagna, A.
    Se presentan 2 intervenciones de outreach realizadas con jóvenes consumidores de drogas de Santiago de Chile: una familiar sistémica (IOFS) y una básica de enlace (IOBE). Se discuten los elementos claves involucrados en el desempeño exitoso de 8 agentes comunitarios, logrados por medio de un análisis cualitativo del registro de los procesos de selección, capacitación y supervisión que recibieron. Los agentes reclutaron 138 consumidores de drogas, logrando retener al 93% a los 6 meses de intervención y al 81% al año. Se evalúo la alianza de trabajo establecida entre jóvenes y agentes comunitarios en 3 momentos de la intervención a través del cuestionario de Horvath, comparando ambos tipos de intervención por medio de ANOVA Mixto de Mediciones Repetidas. Los resultados indican que mientras en IOFS la alianza fue sostenida en el tiempo, en IOBE fue decreciendo, pero que es posible desarrollar un trabajo de outreach de calidad con agentes comunitarios profesionalizados y remunerados. El perfil exitoso de agente es adultos jóvenes, con cercanía sociocultural y territorial con la población objetivo, con motivación social-comunitaria y habilidades de vinculación con jóvenes.
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    Loss of Health State Utilities Attributable to Obesity
    (2023) Del Rio, Francisco; Zitko, Pedro; Santis, Rodrigo; Babul, Marcela; Santis, Florencia
    Objectives: This study aimed to quantify the association between the loss of health state utilities (LHSU) and obesity, considering different obesity categories. This is relevant to interventions economic evaluations and for public policy decision planning. Methods: Using data from the Chilean National Health Survey, this study uses linear regression models and counterfactual scenarios to calculate the prevalent burden, population averages, and total sum of LHSU attributable to obesity for the Chilean national level on people older than 15 years, year 2017. Adjustments for socioeconomic status and associated noncommunicable diseases (NCDs) are considered. Calculating the LHSU using these methods enables the approximation of loss Results: The raw obesity LHSU burden was 9.1% (95% uncertainty interval [UI] 5.1-13). When adjustment is considered, the LHSU attributable to obesity reaches 4.6% (95% UI 0.6-8.5) being responsible for 121045 prevalent QALYs. Socioeconomic status adjusted analysis of higher body mass index (BMI, in kg/m2) categories of obesity shows a dose-response effect for LHSU, being the BMI >= 40 category with the highest population average of attributable LHSU (10.1; 95% UI 5.5-14.5, scale 0 [full health] to 100 [dead]). Burden for BMI >= 35 categories showed the biggest change after NCD adjustment. Conclusions: Obesity carries a significant burden of QALY loss. Policy decision-making addressing obesity should focus specially on the BMI >= 40 group. NCD comorbidity should be considered for policies addressing the BMI >= 35 group.
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    The Alcohol Use Disorders Identification Test (AUDIT) as a screening instrument for adolescents
    (ELSEVIER IRELAND LTD, 2009) Santis, Rodrigo; Luisa Garmendia, Maria; Acuna, Gonzalo; Elena Alvarado, Maria; Arteaga, Oscar
    Background: The Alcohol Use Disorders Identification Test (AUDIT) is an international screening instrument extensively employed in adult target groups. However, there is scarce information on screening with the AUDIT in adolescent Populations. The purpose of this study was to determine the cut-off point for hazardous, harmful, and dependent alcohol use through the validation of the AUDIT in a Chilean adolescent sample.