Claudia Rafful
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Claudia Rafful has a total of 176 co-authors. Here are the top co-authors by number of shared publications:
- Steffanie A. Strathdee
School of Medicine, University of California San Diego, La Jolla, California, USA
16 shared publications - Dan Werb
Centre on Drug Policy Evaluation, MAP Centre for Urban Health Solutions, St. Michael’s Hospital, Toronto, ON, Canada
10 shared publications - María Elena Medina-Mora
Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz
8 shared publications - Carlos Blanco
National Institute on Drug Abuse, Bethesda, USA
5 shared publications Gudelia Rangel
Department of Population Studies The College of the Northern Border Tijuana Mexico
5 shared publications- Leo Beletsky
Northeastern University
5 shared publications
Latest Publications
- Open Access
- 22 August 2026
- Published by Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz in Salud mental
- Vol. 49 (4) , e4110
Psychosocial Interventions for Mental Health and Well-being among LGBTQ+ Persons: a Systematic Review
Introduction. The mental health and well-being of LGBTQ+ persons are severely affected by minority stress. Objective. This study seeks to review the original research on psychosocial interventions designed to improve mental health and well-being among LGBTQ+ adults. Method. The systematic review followed PRISMA guidelines, searching in PubMed, PsycInfo, and Scielo in English, Spanish, Portuguese, and French for original research articles with study outcomes. Results. Overall, 37 studies were included, comprising 21 randomized controlled trials, two other experimental designs, three quasi-experimental studies, two pilot studies, and nine pre-experimental studies. The total sample consisted of 3,858 LGBTQ+ adults aged between 20 and 51, mostly cis White and Afrodescendant males in the United States. Most studies (n = 28) reported a decrease in depression, anxiety, and trauma symptoms, especially those using the cognitive behavioral therapy (CBT) affirmative approach, while nine studies reported improvements in well-being and quality of life. Discussion and conclusion. The CBT affirmative approach showed the best outcomes for improving the mental health of LGBTQ+ persons, who often experience minority stress. More research is needed to include diverse populations regarding race/ethnicity and regional contexts, such as Latin America.
- 22 August 2026
- Published by Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz in Salud mental
- Vol. 49 (4) , e4110
Open AccessPsychosocial Interventions for Mental Health and Well-being among LGBTQ+ Persons: a Systematic Review
Introduction. The mental health and well-being of LGBTQ+ persons are severely affected by minority stress. Objective. This study seeks to review the original research on psychosocial interventions designed to improve mental health and well-being among LGBTQ+ adults. Method. The systematic review followed PRISMA guidelines, searching in PubMed, PsycInfo, and Scielo in English, Spanish, Portuguese, and French for original research articles with study outcomes. Results. Overall, 37 studies were included, comprising 21 randomized controlled trials, two other experimental designs, three quasi-experimental studies, two pilot studies, and nine pre-experimental studies. The total sample consisted of 3,858 LGBTQ+ adults aged between 20 and 51, mostly cis White and Afrodescendant males in the United States. Most studies (n = 28) reported a decrease in depression, anxiety, and trauma symptoms, especially those using the cognitive behavioral therapy (CBT) affirmative approach, while nine studies reported improvements in well-being and quality of life. Discussion and conclusion. The CBT affirmative approach showed the best outcomes for improving the mental health of LGBTQ+ persons, who often experience minority stress. More research is needed to include diverse populations regarding race/ethnicity and regional contexts, such as Latin America.
- Open Access
- 27 March 2026
- Published by Elsevier in Mental Health & Prevention
- Vol. 42
Depression and barriers to accessing mental health services treatment among gbMSM persons who use crystal meth in Mexico City: A mixed methods study
- 27 March 2026
- Published by Elsevier in Mental Health & Prevention
- Vol. 42
Open AccessDepression and barriers to accessing mental health services treatment among gbMSM persons who use crystal meth in Mexico City: A mixed methods study
- Open Access
- 28 January 2025
- Published by SAGE Publications in Substance use & addiction journal
- Vol. 46 (3) , 570-580
Attitudes and Perspectives of Service Providers on Persons Who Use Stimulants in Northern and Central Mexico
Background: Methamphetamine and other stimulant use are increasing across Mexico while treatment options and public funding remain scarce for substance use treatment. This study examined the attitudes and perspectives of service providers who work with persons who use stimulants in Mexico. Methods: Semistructured qualitative interviews were conducted with 20 service providers in diverse cities in the northern and central regions of Mexico, from healthcare centers and harm reduction community-based organizations (CBOs). All interviews were audio-recorded, transcribed, and de-identified. We conducted a thematic analysis to identify and compare common themes and patterns among participants, including portrayal of persons who use stimulants, dynamics of use, attitudes toward persons who use stimulants, and treatment availability and effectiveness. Results: First, service providers considered that persons who use stimulants have more complex backgrounds than others who use other substances. Second, although most providers mentioned trauma, pain, and the risk environment, CBO providers also stressed the importance of accounting for hedonism for understanding stimulant use trajectories. Third, treatment options are based on the type of services the institutions provide, usually constrained to guidelines for any substance use. In a few cases, cocaine treatment guidelines are used regardless of the type of stimulant used. Fourth, although health care services are abstinence-based, providers acknowledge the effectiveness of harm reduction approaches. In contrast, CBOs provide person-centered options. Conclusions: Overall, although service providers are aware of the increase in stimulant use, stigmatizing attitudes are prominent among some of them. However, providers in CBOs were more sensitized to their communities’ specific needs. Public policy recommendations include training to eliminate institutional stigmatization, the importance of first-person language, harm reduction effectiveness, and implementing community-based interventions to improve stimulant use-related services.
- 28 January 2025
- Published by SAGE Publications in Substance use & addiction journal
- Vol. 46 (3) , 570-580
Open AccessAttitudes and Perspectives of Service Providers on Persons Who Use Stimulants in Northern and Central Mexico
Background: Methamphetamine and other stimulant use are increasing across Mexico while treatment options and public funding remain scarce for substance use treatment. This study examined the attitudes and perspectives of service providers who work with persons who use stimulants in Mexico. Methods: Semistructured qualitative interviews were conducted with 20 service providers in diverse cities in the northern and central regions of Mexico, from healthcare centers and harm reduction community-based organizations (CBOs). All interviews were audio-recorded, transcribed, and de-identified. We conducted a thematic analysis to identify and compare common themes and patterns among participants, including portrayal of persons who use stimulants, dynamics of use, attitudes toward persons who use stimulants, and treatment availability and effectiveness. Results: First, service providers considered that persons who use stimulants have more complex backgrounds than others who use other substances. Second, although most providers mentioned trauma, pain, and the risk environment, CBO providers also stressed the importance of accounting for hedonism for understanding stimulant use trajectories. Third, treatment options are based on the type of services the institutions provide, usually constrained to guidelines for any substance use. In a few cases, cocaine treatment guidelines are used regardless of the type of stimulant used. Fourth, although health care services are abstinence-based, providers acknowledge the effectiveness of harm reduction approaches. In contrast, CBOs provide person-centered options. Conclusions: Overall, although service providers are aware of the increase in stimulant use, stigmatizing attitudes are prominent among some of them. However, providers in CBOs were more sensitized to their communities’ specific needs. Public policy recommendations include training to eliminate institutional stigmatization, the importance of first-person language, harm reduction effectiveness, and implementing community-based interventions to improve stimulant use-related services.
- Open Access
- 16 May 2024
- Published by Springer Nature in Harm Reduction Journal
- Vol. 21 (1) , 1-13
Feasibility, acceptability, and perceived usefulness of a community-evidence-based harm reduction intervention for sexualized stimulant use among Mexican gay, bisexual, and other men who have sex with men
Background: The use of stimulants and other substances with the purpose of enhancing, maintaining, and prolonging sexual activity is known as sexualized substance use. Also known as chemsex, this pattern of use has been mainly explored in high-income countries. The aim of this article was to assess the feasibility, acceptability, and usefulness of a community- evidence-based harm reduction intervention among Mexican gay, bisexual, and other men who have sex with men (gbMSM) adults who reported sexualized stimulant use in the past 6 months and who were not enrolled in any psychosocial treatment. Methods: The in-person intervention was designed in partnership with gbMSM who used substances. It consisted of 39 harm reduction strategies before, during, and after episodes of use. The components of the intervention were health and self-care, safety, and psychopharmacology. The intervention was delivered at a university campus, a public recreational space, and an HIV public clinic. Feasibility to deliver the intervention was assessed based on enrolment and completion rates; acceptability through a 28-item, 5-point Likert scale (140 max.) constructed and validated for the Mexican population with good reliability coefficients; usefulness through a 5-point Likert scale (“not useful”-“very useful”) for each of the 39 strategies; and potential behavioral change by subtracting the likelihood of implementing each strategy minus the frequency of use of the technique before the intervention. Results: Participants (n = 19; recruitment rate = 35.2%; completion rate = 84.2%) rated the intervention as acceptable with a mean score of 121.6 (SD = 7.5). The highest potential for behavioral change was regarding the use of information about the half-life of stimulants, polysubstance use, and overdose prevention. Conclusions: This intervention is feasible when provided within public health services where potential participants are already in contact. Harm reduction strategies need to surpass sexually transmitted infections prevention and HIV care and focus on substance use and mental health strategies.
- 16 May 2024
- Published by Springer Nature in Harm Reduction Journal
- Vol. 21 (1) , 1-13
Open AccessFeasibility, acceptability, and perceived usefulness of a community-evidence-based harm reduction intervention for sexualized stimulant use among Mexican gay, bisexual, and other men who have sex with men
Background: The use of stimulants and other substances with the purpose of enhancing, maintaining, and prolonging sexual activity is known as sexualized substance use. Also known as chemsex, this pattern of use has been mainly explored in high-income countries. The aim of this article was to assess the feasibility, acceptability, and usefulness of a community- evidence-based harm reduction intervention among Mexican gay, bisexual, and other men who have sex with men (gbMSM) adults who reported sexualized stimulant use in the past 6 months and who were not enrolled in any psychosocial treatment. Methods: The in-person intervention was designed in partnership with gbMSM who used substances. It consisted of 39 harm reduction strategies before, during, and after episodes of use. The components of the intervention were health and self-care, safety, and psychopharmacology. The intervention was delivered at a university campus, a public recreational space, and an HIV public clinic. Feasibility to deliver the intervention was assessed based on enrolment and completion rates; acceptability through a 28-item, 5-point Likert scale (140 max.) constructed and validated for the Mexican population with good reliability coefficients; usefulness through a 5-point Likert scale (“not useful”-“very useful”) for each of the 39 strategies; and potential behavioral change by subtracting the likelihood of implementing each strategy minus the frequency of use of the technique before the intervention. Results: Participants (n = 19; recruitment rate = 35.2%; completion rate = 84.2%) rated the intervention as acceptable with a mean score of 121.6 (SD = 7.5). The highest potential for behavioral change was regarding the use of information about the half-life of stimulants, polysubstance use, and overdose prevention. Conclusions: This intervention is feasible when provided within public health services where potential participants are already in contact. Harm reduction strategies need to surpass sexually transmitted infections prevention and HIV care and focus on substance use and mental health strategies.
- Open Access
- 26 February 2024
- Published by Springer Nature in Archives of Sexual Behavior
- Vol. 53 (4) , 1561-1574
HIV-Related Stigma and Treatment Adherence Among Gay, Bisexual, and Other Men Who Have Sex with Men Who Use Crystal Meth in the Metropolitan Area of Mexico City
Internationally, HIV-related stigma and crystal methamphetamine (meth) use have been described as barriers to treatment adherence among gay, bisexual, and other men who have sex with men (gbMSM). Crystal meth use has been increasing among gbMSM in the Metropolitan Area of Mexico City (MAMC). Therefore, this study aimed to determine the association between HIV-related stigma and HIV treatment adherence among gbMSM who use crystal meth in the MAMC. This study was undertaken as part of an exploratory study of crystal meth use in the MAMC. The data were collected from September to December 2021 through an encrypted online survey. Participants (n = 89) were gbMSM adults living with HIV who reported crystal meth use in the past month that were recruited through an online snowball sampling. The online survey included questions about HIV treatment adherence, sexual behaviors, the Alcohol, Smoking, and Substance Involved Screening Test, and the HIV-Related Stigma Mechanisms Scale. Logistic regression analyses assessed the association between HIV-related stigma and HIV treatment adherence. The multivariate logistic regression model showed that, controlling for health insurance [adjusted odds ratio (AOR) = 0.13; 95% confidence intervals (CI) = 0.02–0.59] and educational level (AOR = 0.16; 95% CI = 0.02–0.88), non-adherence to HIV treatment was independently associated with higher HIV-related stigma (AOR = 1.06; 95% CI = 1.01–1.12). Public health policies must include HIV-related stigma and substance use in treating gbMSM with HIV.
- 26 February 2024
- Published by Springer Nature in Archives of Sexual Behavior
- Vol. 53 (4) , 1561-1574
Open AccessHIV-Related Stigma and Treatment Adherence Among Gay, Bisexual, and Other Men Who Have Sex with Men Who Use Crystal Meth in the Metropolitan Area of Mexico City
Internationally, HIV-related stigma and crystal methamphetamine (meth) use have been described as barriers to treatment adherence among gay, bisexual, and other men who have sex with men (gbMSM). Crystal meth use has been increasing among gbMSM in the Metropolitan Area of Mexico City (MAMC). Therefore, this study aimed to determine the association between HIV-related stigma and HIV treatment adherence among gbMSM who use crystal meth in the MAMC. This study was undertaken as part of an exploratory study of crystal meth use in the MAMC. The data were collected from September to December 2021 through an encrypted online survey. Participants (n = 89) were gbMSM adults living with HIV who reported crystal meth use in the past month that were recruited through an online snowball sampling. The online survey included questions about HIV treatment adherence, sexual behaviors, the Alcohol, Smoking, and Substance Involved Screening Test, and the HIV-Related Stigma Mechanisms Scale. Logistic regression analyses assessed the association between HIV-related stigma and HIV treatment adherence. The multivariate logistic regression model showed that, controlling for health insurance [adjusted odds ratio (AOR) = 0.13; 95% confidence intervals (CI) = 0.02–0.59] and educational level (AOR = 0.16; 95% CI = 0.02–0.88), non-adherence to HIV treatment was independently associated with higher HIV-related stigma (AOR = 1.06; 95% CI = 1.01–1.12). Public health policies must include HIV-related stigma and substance use in treating gbMSM with HIV.
- Open Access
- 1 August 2023
- Published by SciELO Agencia Nacional de Investigacion y Desarrollo (ANID) in Terapia psicológica
- Vol. 41 (2) , 177-193
Traducción, validación, y adaptación del español al Kreyol–creole haitiano de la Escala de Depresión del Centro de Estudios Epidemiológicos (CESD-R-20)
Palabras clave: salud mental; migrantes; Haití; CESD-R-20
- 1 August 2023
- Published by SciELO Agencia Nacional de Investigacion y Desarrollo (ANID) in Terapia psicológica
- Vol. 41 (2) , 177-193
Open AccessTraducción, validación, y adaptación del español al Kreyol–creole haitiano de la Escala de Depresión del Centro de Estudios Epidemiológicos (CESD-R-20)
Palabras clave: salud mental; migrantes; Haití; CESD-R-20
- Open Access
- 23 May 2023
- Published by Elsevier in The Lancet Regional Health - Americas
- Vol. 23, 100520
Addressing opioid use disorder: Mexico's step backwards
- 23 May 2023
- Published by Elsevier in The Lancet Regional Health - Americas
- Vol. 23, 100520
Open AccessAddressing opioid use disorder: Mexico's step backwards
- 26 October 2022
- Published by Springer Nature in AIDS and Behavior
- Vol. 27 (4) , 1321-1328
HIV Stigma Mechanisms Scale: Factor Structure, Reliability, and Validity in Mexican Adults
We aimed to validate the HIV Stigma Mechanisms Scale (HIV-SMS) in a sample of Mexican adults living with HIV, which differentiates between sources and mechanisms of stigma. Adults (n = 362) with a median age of 32 years old completed a web-based version in Spanish of the HIV-SMS as well as sociodemographic and HIV-related characteristics questionnaire. Exploratory factor analyses with weighted least squares and oblique rotation were performed to assess the construct validity of the scale. The Spanish translation for the Mexican population of the HIV-SMS has adequate internal consistency (Ω = 0.86) and demonstrated a structure similar to the original scale. After excluding the items related to community and social workers, a five-factor solution with internalized, promulgated, and anticipated stigma from family and healthcare workers showed adequate construct validity. The HIV-SMS is a valid and sensitive scale that can be used in a Mexican adult population living with HIV.
- 26 October 2022
- Published by Springer Nature in AIDS and Behavior
- Vol. 27 (4) , 1321-1328
HIV Stigma Mechanisms Scale: Factor Structure, Reliability, and Validity in Mexican Adults
We aimed to validate the HIV Stigma Mechanisms Scale (HIV-SMS) in a sample of Mexican adults living with HIV, which differentiates between sources and mechanisms of stigma. Adults (n = 362) with a median age of 32 years old completed a web-based version in Spanish of the HIV-SMS as well as sociodemographic and HIV-related characteristics questionnaire. Exploratory factor analyses with weighted least squares and oblique rotation were performed to assess the construct validity of the scale. The Spanish translation for the Mexican population of the HIV-SMS has adequate internal consistency (Ω = 0.86) and demonstrated a structure similar to the original scale. After excluding the items related to community and social workers, a five-factor solution with internalized, promulgated, and anticipated stigma from family and healthcare workers showed adequate construct validity. The HIV-SMS is a valid and sensitive scale that can be used in a Mexican adult population living with HIV.
- 4 October 2022
- Published by Springer Nature
- p. 127-145
The Need for Structural Interventions for Persons Who Misuse Opioids
- 4 October 2022
- Published by Springer Nature
- p. 127-145
The Need for Structural Interventions for Persons Who Misuse Opioids
- Open Access
- 12 August 2022
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 19 (16) , 9977
Hoping for a Better Future during COVID-19: How Migration Plans Are Protective of Depressive Symptoms for Haitian Migrants Living in Chile
This paper explores the migration experiences, perceived COVID-19 impacts, and depression symptoms among Haitian migrants living in Santiago, Chile. Ninety-five participants from eight neighborhoods with a high density of Haitian migrants were recruited. Descriptive statistics, univariate analysis, and logistic regression analysis were conducted. Chi-squared tests were used to confirm univariate results. We found that 22% of participants had major depressive symptoms based on the CESD-R-20 scale, 87% reported major life changes due to COVID-19, and 78% said their migration plans had changed due to the pandemic. Factors associated with more depressive symptoms were being in debt (OR = 3.43) and experiencing discrimination (ORs: 0.60 to 6.19). Factors associated with less odds of depressive symptoms were social support (ORs: 0.06 to 0.25), change in migration plans due to COVID-19 (OR = 0.30), and planning to leave Chile (OR = 0.20). After accounting for relevant factors, planning to leave Chile is significantly predictive of fewer symptoms of depression. Haitian migrants living in Chile had a high prevalence of depression. Planning to leave Chile was a significant protector against depressive symptoms. Future studies should explore how nuanced experiences of uncertainty play out in migrants’ lives, mental well-being, and planning for their future.
- 12 August 2022
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 19 (16) , 9977
Open AccessHoping for a Better Future during COVID-19: How Migration Plans Are Protective of Depressive Symptoms for Haitian Migrants Living in Chile
This paper explores the migration experiences, perceived COVID-19 impacts, and depression symptoms among Haitian migrants living in Santiago, Chile. Ninety-five participants from eight neighborhoods with a high density of Haitian migrants were recruited. Descriptive statistics, univariate analysis, and logistic regression analysis were conducted. Chi-squared tests were used to confirm univariate results. We found that 22% of participants had major depressive symptoms based on the CESD-R-20 scale, 87% reported major life changes due to COVID-19, and 78% said their migration plans had changed due to the pandemic. Factors associated with more depressive symptoms were being in debt (OR = 3.43) and experiencing discrimination (ORs: 0.60 to 6.19). Factors associated with less odds of depressive symptoms were social support (ORs: 0.06 to 0.25), change in migration plans due to COVID-19 (OR = 0.30), and planning to leave Chile (OR = 0.20). After accounting for relevant factors, planning to leave Chile is significantly predictive of fewer symptoms of depression. Haitian migrants living in Chile had a high prevalence of depression. Planning to leave Chile was a significant protector against depressive symptoms. Future studies should explore how nuanced experiences of uncertainty play out in migrants’ lives, mental well-being, and planning for their future.