Abstract Introduction High rates of early hospital discharge are often observed in crack cocaine users and are related to adverse outcomes and increased public spending. This study evaluated clinical and sociodemographic factors associated with early treatment discharge among crack users. Methods The sample comprised 308 men diagnosed with crack cocaine use disorder (crack only), aged 18 to 65 years, admitted between 2013 and 2017 to a male-only hospital unit to treat substance use disorders. Sociodemographic and clinical data were obtained using the Addiction Severity Index, 6th version, and a Sociodemographic Questionnaire. Results Early discharge (within 7 days) was significantly associated with lack of own income, insufficient family support, being single, and recent homelessness. Regarding drug use, lower treatment retention was related to younger age of crack use onset, recent alcohol use, and nicotine use. Factors such as age, skin color, and educational level showed no relation to the outcome. Conclusion Our findings suggest that presence of characteristics verifiable at the time of admission may be related to crack users’ treatment retention. Identification of these factors can contribute to target interventions in order to improve treatment adherence in crack cocaine users.

Objective: This study aimed to evaluate whether progression from first drug use to crack-cocaine use differs according to gender, and whether the report of sexual or physical violence impacts the time of progression. Methods: We interviewed 896 crack-cocaine users (548 men; 348 women) from addiction treatment units. Cox regression models evaluated the time of progression from first drug use to crack use. We analyzed gender differences according to the absence or presence of sexual or physical violence, also considering whether violence, when present, had occurred before or after the onset of crack use. Results: Women presented a faster progression to crack use regardless of exposure to sexual or physical violence (p < 0.05). Compared to unexposed men, there was a similar progression for men exposed to sexual or physical violence before the first use of crack (p = 0.167 and p = 0.393, respectively). In both genders, we observed a faster progression among individuals exposed to these types of violence after the onset of crack use (p < 0.01). Conclusions: We found a faster progression to crack use among women and among individuals exposed to sexual and physical violence after the onset of crack use. These results encourage differentiated treatment strategies, focused on gender and individual characteristics.

Objective: This study reviewed and analyzed the prevalence of suicidal behaviors among cocaine users who sought health services. Methods: This is a systematic review and meta-analysis of studies published until January 2021. PubMed/MEDLINE, Scopus, Embase, PsycINFO, and LILACS were searched. The inclusion criteria were observational (retrospective or prospective), case-control, and/or cross-sectional reports that contained samples of cocaine users aged over 14 years who were assessed in health facilities or were in treatment. The random-effects model was used to calculate the overall prevalence of suicidal behavior with a 95% confidence interval. Subgroup analysis was conducted to investigate sources of heterogeneity. Results: Twenty articles were included, yielding a total of 2,252 cocaine users. The estimated prevalence was 43.59% (95%CI 31.10-57.38) for suicidal ideation and 27.71% (95%CI 21.63-34.73) for suicide attempts. High heterogeneity was found between studies for both outcomes (I2 ≥ 93%), although subgroup analysis considering the quality of the studies showed a significant difference in suicide attempts (p = 0.03). Conclusion: Cocaine use can be considered a risk factor for suicidal behavior, and prevention and early screening measures should be implemented to facilitate adequate treatment.

Abstract Introduction Changes in brain-derived neurotrophic factor (BDNF) have been linked to the neuroadaptative consequences of chronic alcohol use and associated with disease severity and prognosis. Few studies have evaluated the influence of drug withdrawal and clinical and sociodemographic data on BDNF levels in severe alcohol users. Objectives Our goals were (1) to evaluate variation in BDNF levels during alcohol withdrawal and, (2) to assess the influence of putative confounding factors on BDNF levels. Methods Our sample consists of 62 men with alcohol use disorder undergoing a detoxification process. Serum BDNF levels were measured using a commercial sandwich-ELISA kit, at two points: before and after the detoxification period. Results We found an increase in BDNF levels during alcohol withdrawal (25.4±9.6 at admission vs. 29.8±10.2 ng/ml at discharge; p < 0.001), even after controlling for potential confounders (positive family history, number of days between blood sample collections, and age) (Generalized Estimating Equation: coefficient = -4.37, 95% confidence interval [95%CI] -6.3; -2.4; p < 0.001). Moreover, individuals who had first-degree relative with alcohol dependence had smaller increases in BDNF levels than individuals with no family history (14.8 [95%CI -5.3; 35.6] vs. 35.3 [95%CI 15.4; 74.8]; p = 0.005). Conclusions In summary, variation in BDNF levels seems to be influenced by withdrawal in severe alcohol users. A positive family history of alcohol dependence could also be a factor that influences variation in this biomarker.

Resumo Com base na sociologia da tradução, estudamos o caso extremo do novo coronavírus para explorar o papel dos não-humanos nos processos relacionais. Procuramos compreender como líderes de três países tentaram, num processo de tradução, tomar a voz do novo coronavírus, e como o vírus resistiu à imposição de papéis por parte dos atores humanos do estudo. Por meio da análise de declarações, entrevistas e postagens em mídia social destes líderes, sugerimos o processo de desinteressamento, em quatro movimentos. Como contribuição, mostramos como o agente não humano (i) é ativo em termos de participação no processo de tradução, e (ii) possui recalcitrância, pois resistiu aos papéis que lhe foram impostos.

Abstract Based on the sociology of translation, we studied the extreme case of the new coronavirus to explore the role of non-humans in relational processes. We seek to understand how leaders of three countries tried, in a translation process, to take the voice of the new coronavirus and how the virus resisted the imposition of roles by the human actors of the study. Through the analysis of the leaders’ statements, interviews, and social media posts, we suggested the process of disinteressement, in four movements. As a contribution, we show how the non-human actant (i) is active in terms of participation in the translation process, and (ii) resisted the roles imposed.

Resumen Basándonos en la sociología de la traducción, estudiamos el caso extremo del nuevo coronavirus para explorar el papel de los no humanos en los procesos relacionales. Intentamos entender cómo los líderes de tres países intentaron, en un proceso de traducción, tomar la voz del nuevo coronavirus, y cómo el virus resistió a la imposición de roles por parte de los actores humanos en el estudio. A través del análisis de declaraciones, entrevistas y publicaciones en redes sociales de estos líderes, sugerimos el proceso de desinterés, en cuatro movimientos. Como aporte, mostramos cómo el agente no humano (i) es activo en cuanto a participación en el proceso de traducción, y (ii) es recalcitrante, porque resistió los roles que le fueron impuestos.

Resumo Objetivos: calcular a prevalência e as taxas por 1000 nascidos vivos de infecções sexualmente transmissíveis (IST) em gestantes de uma maternidade pública de Salvador. Métodos: estudo transversal, descritivo, com dados coletados retrospectivamente a partir das fichas de notificação dos agravos e dos prontuários de todas as gestantes com IST atendidas na maternidade, entre os anos de 2014 e 2017 (n=520). Foram calculadas as prevalências e as taxas por 1000 nascidos vivos de hepatite B, hepatite C, HIV e sífilis para a população de gestantes da maternidade. Associações entre as IST e demais variáveis clínicas e sociodemográficas também foram investigadas. Resultados: a maioria das gestantes era natural e residente de Salvador, pardas, com idade média de 26,4 anos e que não planejaram a gravidez. As prevalências e as taxas por 1000 nascidos vivos foram respectivamente: 0,26% e 3,39 para hepatite B, 0,06% e 0,79 para hepatite C, 0,47% e 6,23 para HIV e 2,46% e 32,2 para sífilis. Conclusão: a maternidade apresenta prevalências e taxas por 1000 nascidos vivos superiores aos dados oficiais do governo brasileiro, especialmente para HIV e sífilis. A correta notificação epidemiológica desses agravos, especialmente em gestantes, permite o desenvolvimento de estratégias preventivas mais eficientes e com enfoque nas características sociodemográficas e clínicas das pacientes.

Abstract Objectives: to calculate the prevalence and rate per 1,000 live births of sexually transmitted infections (STI) in pregnant women at a public maternity hospital in Salvador. Methods: this descriptive, cross-sectional study retrospectively collected data from compulsory notifications and medical records of pregnant women with STI seen at a maternity hospital in northeastern Brazil between 2014 and 2017 (n = 520). Prevalence and rate per 1,000 live births were estimated for hepatitis B, hepatitis C, HIV, and syphilis. Associations between STI and other clinical and sociodemographic variables were investigated. Results: most pregnant women were born and resided in Salvador, presented a mean age of 26.4 years, self-reported mixed-race and had unplanned pregnancies. Prevalence and rates per 1,000 live births were, respectively: 0.26% and 3.39 for hepatitis B, 0.06% and 0.79 for hepatitis C, 0.47% and 6.23 for HIV, and 2.46% and 32.2 for syphilis. Conclusion: higher prevalence and rates of infection per 1,000 live births were seen at the maternity hospital in northeastern Brazil compared to official data provided by the Brazilian government, notably with regard to HIV and syphilis. The appropriate epidemiological notification of STI, especially in pregnant women, enables the elaboration of effective preventive strategies incorporating specific sociodemographic and clinical characteristics.

Abstract This study aimed to classify the homogeneous regions of vegetation cover, which occur in Rio Grande do Sul, formed by clustering of pixels with same pattern of temporal variability of the Normalized Difference Vegetation Index (NDVI) of AVHRR GIMMS and MODIS series and to compare their temporal dynamics. We use K means cluster analysis for defining homogeneous regions, based on the temporal variability of GIMMS (8 km spatial resolution) and MODIS (1 km spatial resolution) NDVI data sets, using monthly images mean from 2000 to 2008 (overlapping period); and we analyzed the annual pattern of NDVI. Accuracy assessment was done with Landsat images. The results show that the temporal variability of GIMMS and MODIS NDVI allows to delimit similar homogeneous regions in order to mapping the main vegetation cover. MODIS series shows a greater detail in the definition of the regions, but with compatibility with those generated by GIMMS. The temporal dynamics show a typical seasonal pattern, with variations of NDVI amplitude between the groups, that allow to monitor phenological changes. The deviations from calibration between times series are linear, which would facilitate a correction in order to construct a long synthetic time series for studies of land cover change.

Abstract Introduction Brazil is one of the countries with the highest rates of alcohol-related traffic infractions, but little is known about the profile of the drivers who commit them. Identifying the characteristics of impaired drivers is essential for planning preventive actions. Objective To compare drug use and driving behavior profiles of drivers with and without alcohol-related infractions. Methods 178 drivers stopped at routine roadblocks were assessed by traffic agents who conducted standard roadblock procedures (document verification; request of a breathalyzer test [BT]). Drug use and driving behavior data were collected through semi-structured interviews. Subjects were divided into three groups: drivers who refused the BT (RDs, n = 72), drivers who tested positive on the BT (PDs, n = 34), and drivers who had committed other infractions (ODs, n = 72). Results The proportion of alcohol use in the last year was higher among RDs (100%) than in the PD and OD groups (97.1% and 72.2% respectively, p < 0.001). Lifetime prevalence of cannabis and cocaine use for the overall sample was 44.3% and 18.2%, respectively. Fewer individuals in the OD group (31.5%) reported having been stopped at roadblocks in the previous year compared to the PDs (55.9%) and RDs (48.6%, p = 0.03). However, a higher proportion of RDs reported drunk driving in the same period (87.5%; PD 69.7%; OD 26.9%; p < 0.001). Conclusion Essential differences among groups were observed. RDs had a higher proportion of alcohol use and drunk driving in the previous year; drivers who fit into this particular group may be unresponsive or less responsive to social deterrence and enforcement actions.

Resumo: O estudo teve como objetivo avaliar a gravidade do uso de substâncias psicoativas, situações de violência, saúde física e emocional de usuários de crack que buscam atendimento em Centros de Atenção Psicossocial para Álcool e Drogas (CAPSad), em relação ao status de moradia. Trata-se de um estudo multicêntrico em seis capitais brasileiras, com 564 usuários de crack categorizados em dois grupos: (1) usuários que estiveram em situação de rua (n = 266) e (2) nunca estiveram em situação de rua (n = 298). Para avaliar a gravidade do uso de substâncias e as características dos indivíduos utilizou-se o Addiction Severity Index, 6ª versão (ASI-6). Os usuários do grupo 1 demonstraram piores indicadores em relação às subescalas álcool, problemas médicos, psiquiátricos, trabalho e suporte familiar, além de maior envolvimento com problemas legais, violência, abuso sexual, risco de suicídio e problemas de saúde como HIV/AIDS, hepatite e tuberculose, além de possuírem menos renda para pagar necessidades básicas. Após análises multivariadas ajustadas para possíveis confundidores, não possuir renda suficiente para pagar necessidades básicas, apresentar sintomas depressivos e ter sido preso por roubo permaneceram significativos. Este trabalho avaliou de forma mais abrangente a gravidade do uso de drogas e a situação de moradia de usuários de crack. Abordagens desenvolvidas nos dispositivos de tratamento extra-hospitalares devem ser projetadas e adequadas de acordo com perfis e demandas específicos dos usuários, em especial aqueles em situação de rua.

Abstract: The study had the goal to evaluate psychoactive substance use severity, violence, physical and emotional health of crack users who seeks specialized treatment in Psychosocial Care Centers for Alcohol and Drugs (CAPSad) concerning housing status. This is a multicenter cross-sectional study in six Brazilian capitals with 564 crack users categorized into two groups (1) users who have been homeless sometime in life (n = 266) and (2) individuals who have never lived on streets (n = 298). To assess the substance use severity and the characteristics of the individuals, the Addiction Severity Index, 6th version (ASI-6) was used. Group 1 users showed worse indicators regarding alcohol, medical and psychiatric problems, employment and family support subscales, as well as greater involvement with legal problems, violence, sexual abuse, suicide risk and health related problems such as HIV/AIDS, hepatitis and tuberculosis. In addition they have lower income to pay for basic needs. After analysis and control for possible confounders, not having enough income to pay for basic needs, showing depression symptoms, and having been arrested for theft remained statistically significant. This study evaluated more deeply drug use severity and housing status of crack users. Interventions developed in outpatient treatment should be designed and tailored to specific profiles and demands of drug users, especially homeless individuals.

Resumen: El objetivo de este estudio fue evaluar la gravedad del uso de sustancias psicoactivas, situaciones de violencia, salud física y emocional de consumidores de crack que buscan atención en Centros de Atención Psicosocial para alcohol y drogas (CAPSad), en relación con el status de acceso a la vivienda. Se trata de un estudio multicéntrico en seis capitales brasileñas, con 564 consumidores de crack categorizados en dos grupos: (1) consumidores sin techo (n = 266) y (2) quienes nunca fueron sin techo (n = 298). Para evaluar la gravedad del uso de sustancias y las características de los individuos se utilizó el Addiction Severity Index, 6ª versión (ASI-6). Los consumidores del grupo 1 demostraron peores indicadores, en relación a las subescalas alcohol, problemas médicos, psiquiátricos, trabajo y apoyo familiar, además de una mayor implicación en problemas legales, violencia, abuso sexual, riesgo de suicidio y problemas de salud como VIH/SIDA, hepatitis y tuberculosis, además de contar con menos renta para pagar necesidades básicas. Tras los análisis multivariados ajustados para posibles confusores, no contar con renta suficiente para pagar necesidades básicas, presentar síntomas depresivos y haber sido preso por robo fueron significativos. Este trabajo evaluó de forma más amplia la gravedad del consumo de drogas y la situación de acceso a la vivienda de consumidores de crack. Se deben proyectar enfoques desarrollados en los dispositivos de tratamiento extra-hospitalarios, adecuados según perfiles y demandas específicas de los consumidores, en especial aquellos en situación de desamparo.

Resumo: O estudo teve como objetivo avaliar a gravidade do uso de substâncias psicoativas, situações de violência, saúde física e emocional de usuários de crack que buscam atendimento em Centros de Atenção Psicossocial para Álcool e Drogas (CAPSad), em relação ao status de moradia. Trata-se de um estudo multicêntrico em seis capitais brasileiras, com 564 usuários de crack categorizados em dois grupos: (1) usuários que estiveram em situação de rua (n = 266) e (2) nunca estiveram em situação de rua (n = 298). Para avaliar a gravidade do uso de substâncias e as características dos indivíduos utilizou-se o Addiction Severity Index, 6ª versão (ASI-6). Os usuários do grupo 1 demonstraram piores indicadores em relação às subescalas álcool, problemas médicos, psiquiátricos, trabalho e suporte familiar, além de maior envolvimento com problemas legais, violência, abuso sexual, risco de suicídio e problemas de saúde como HIV/AIDS, hepatite e tuberculose, além de possuírem menos renda para pagar necessidades básicas. Após análises multivariadas ajustadas para possíveis confundidores, não possuir renda suficiente para pagar necessidades básicas, apresentar sintomas depressivos e ter sido preso por roubo permaneceram significativos. Este trabalho avaliou de forma mais abrangente a gravidade do uso de drogas e a situação de moradia de usuários de crack. Abordagens desenvolvidas nos dispositivos de tratamento extra-hospitalares devem ser projetadas e adequadas de acordo com perfis e demandas específicos dos usuários, em especial aqueles em situação de rua.

Abstract: The study had the goal to evaluate psychoactive substance use severity, violence, physical and emotional health of crack users who seeks specialized treatment in Psychosocial Care Centers for Alcohol and Drugs (CAPSad) concerning housing status. This is a multicenter cross-sectional study in six Brazilian capitals with 564 crack users categorized into two groups (1) users who have been homeless sometime in life (n = 266) and (2) individuals who have never lived on streets (n = 298). To assess the substance use severity and the characteristics of the individuals, the Addiction Severity Index, 6th version (ASI-6) was used. Group 1 users showed worse indicators regarding alcohol, medical and psychiatric problems, employment and family support subscales, as well as greater involvement with legal problems, violence, sexual abuse, suicide risk and health related problems such as HIV/AIDS, hepatitis and tuberculosis. In addition they have lower income to pay for basic needs. After analysis and control for possible confounders, not having enough income to pay for basic needs, showing depression symptoms, and having been arrested for theft remained statistically significant. This study evaluated more deeply drug use severity and housing status of crack users. Interventions developed in outpatient treatment should be designed and tailored to specific profiles and demands of drug users, especially homeless individuals.

Resumen: El objetivo de este estudio fue evaluar la gravedad del uso de sustancias psicoactivas, situaciones de violencia, salud física y emocional de consumidores de crack que buscan atención en Centros de Atención Psicosocial para alcohol y drogas (CAPSad), en relación con el status de acceso a la vivienda. Se trata de un estudio multicéntrico en seis capitales brasileñas, con 564 consumidores de crack categorizados en dos grupos: (1) consumidores sin techo (n = 266) y (2) quienes nunca fueron sin techo (n = 298). Para evaluar la gravedad del uso de sustancias y las características de los individuos se utilizó el Addiction Severity Index, 6ª versión (ASI-6). Los consumidores del grupo 1 demostraron peores indicadores, en relación a las subescalas alcohol, problemas médicos, psiquiátricos, trabajo y apoyo familiar, además de una mayor implicación en problemas legales, violencia, abuso sexual, riesgo de suicidio y problemas de salud como VIH/SIDA, hepatitis y tuberculosis, además de contar con menos renta para pagar necesidades básicas. Tras los análisis multivariados ajustados para posibles confusores, no contar con renta suficiente para pagar necesidades básicas, presentar síntomas depresivos y haber sido preso por robo fueron significativos. Este trabajo evaluó de forma más amplia la gravedad del consumo de drogas y la situación de acceso a la vivienda de consumidores de crack. Se deben proyectar enfoques desarrollados en los dispositivos de tratamiento extra-hospitalarios, adecuados según perfiles y demandas específicas de los consumidores, en especial aquellos en situación de desamparo.