Thirdhand smoke: when the danger is more than you can see or smell

Recent discussion has focused on another form of exposure to tobacco - thirdhand smoke (THS) - consisting of residual pollutants from cigarette smoke that remain in environments. The main concern with THS is based on the presence and persistence of many toxic compounds, some specific nitrosamines from tobacco that have carcinogenic activity. Little is known about THS, and few people are aware of its existence and potential health repercussions, thus highlighting the need to shed light on the subject and incorporate it into the public health debate, as was done with passive smoking several years ago. THS is a form of passive smoking, together with secondary or involuntary exposure to cigarette smoke

Não adesão em intervenções por telemedicina para usuários de drogas: revisão sistemática

OBJECTIVE To estimate rates of non-adherence to telemedicine strategies aimed at treating drug addiction. METHODS A systematic review was conducted of randomized controlled trials investigating different telemedicine treatment methods for drug addiction. The following databases were consulted between May 18, 2012 and June 21, 2012: PubMed, PsycINFO, SciELO, Wiley (The Cochrane Library), Embase, Clinical trials and Google Scholar. The Grading of Recommendations Assessment, Development and Evaluation was used to evaluate the quality of the studies. The criteria evaluated were: appropriate sequence of data generation, allocation concealment, blinding, description of losses and exclusions and analysis by intention to treat. There were 274 studies selected, of which 20 were analyzed. RESULTS Non-adherence rates varied between 15.0% and 70.0%. The interventions evaluated were of at least three months duration and, although they all used telemedicine as support, treatment methods differed. Regarding the quality of the studies, the values also varied from very poor to high quality. High quality studies showed better adherence rates, as did those using more than one technique of intervention and a limited treatment time. Mono-user studies showed better adherence rates than poly-user studies. CONCLUSIONS Rates of non-adherence to treatment involving telemedicine on the part of users of psycho-active substances differed considerably, depending on the country, the intervention method, follow-up time and substances used. Using more than one technique of intervention, short duration of treatment and the type of substance used by patients appear to facilitate adherence.OBJETIVO Estimar taxas de não adesão em intervenções com estratégias de telemedicina para tratamento de dependência química. MÉTODOS Foi realizada revisão sistemática de ensaios clínicos randomizados com diferentes métodos terapêuticos de dependência química que incluíam telemedicina. Foram consultadas as bases de dados PubMed, PsycINFO, SciELO, Wiley (The Cochrane Library), Embase e Clinical Trials e a plataforma Google Scholar no período de 18/4/2012 a 21/6/2012. Para avaliar a qualidade dos estudos, utilizou-se a escala Grading of Recommendations Assessment, Development and Evaluation . Os critérios avaliados foram: adequada sequência da geração de dados, ocultação da alocação, cegamento, descrição das perdas e exclusões e análises por intenção de tratar. Foram selecionados 274 estudos, dos quais 20 foram analisados. RESULTADOS As taxas de não adesão variaram entre 15,0% e 70,0%. As intervenções avaliadas possuíam no mínimo três meses de intervenção e, embora todos utilizassem a telemedicina como apoio, os métodos de tratamentos foram diferentes. Em relação à qualidade dos estudos, os valores também variaram entre muito baixa qualidade e alta qualidade. Os estudos com qualidade alta demonstraram maiores taxas de adesão, bem como aqueles que utilizaram mais de uma técnica de intervenção e tempo limitado de tratamento. Estudos com monousuários apontaram maiores taxas de adesão que estudos com poliusuários. CONCLUSÕES As taxas de não adesão a tratamentos para usuários de substâncias psicoativas por meio de telemedicina apresentaram consideráveis diferenças, dependendo do país, método da intervenção, tempo de seguimento e substâncias utilizadas. O uso de mais de uma técnica de intervenção, tempo curto de tratamento e o tipo de substância utilizada pelos pacientes parecem facilitar a adesão

Assessment of factors related to smokers' adherence to a short-term support group for smoking cessation: a longitudinal study in a developing country

Abstract Objective: The aim of this study was to determine which individual characteristics of smokers are associated with their adherence to a support group for smoking cessation. Methods: Smokers from Porto Alegre, Brazil, were invited to participate in a support group for smoking cessation consisting of four weekly sessions. Demographic data, smoking history, presence of tobacco-related diseases, severity of nicotine dependence, stage of motivation, and symptoms of anxiety and depression were evaluated at baseline. Adherence was defined as attendance at group sessions and was measured at the second and fourth sessions of the program. Results: The study recruited 167 smokers who attended the first meeting and met criteria for admission to the study. One hundred and two of the participants returned to the second session and only 55 of those who attended the first meeting completed the four-week program. For immediate adherence (second session), adult smokers over the age of 35 were more likely to adhere to the treatment (p = 0.004), whereas smoking higher numbers of cigarettes per day was associated with lower adherence to attendance at group meetings (p = 0.031). For final adherence (fourth session), only minimal level symptoms of anxiety were associated with a higher likelihood of adherence (p = 0.02). Conclusions: Older smokers, those who smoked fewer cigarettes per day, and those with lower levels of anxiety exhibited higher rates of adherence to a smoking cessation support group

Non-adherence to telemedicine interventions for drug users: systematic review.

OBJECTIVE: To estimate rates of non-adherence to telemedicine strategies aimed at treating drug addiction. METHODS: A systematic review was conducted of randomized controlled trials investigating different telemedicine treatment methods for drug addiction. The following databases were consulted between May 18, 2012 and June 21, 2012: PubMed, PsycINFO, SciELO, Wiley (The Cochrane Library), Embase, Clinical trials and Google Scholar. The Grading of Recommendations Assessment, Development and Evaluation was used to evaluate the quality of the studies. The criteria evaluated were: appropriate sequence of data generation, allocation concealment, blinding, description of losses and exclusions and analysis by intention to treat. There were 274 studies selected, of which 20 were analyzed. RESULTS: Non-adherence rates varied between 15.0% and 70.0%. The interventions evaluated were of at least three months duration and, although they all used telemedicine as support, treatment methods differed. Regarding the quality of the studies, the values also varied from very poor to high quality. High quality studies showed better adherence rates, as did those using more than one technique of intervention and a limited treatment time. Mono-user studies showed better adherence rates than poly-user studies. CONCLUSIONS: Rates of non-adherence to treatment involving telemedicine on the part of users of psycho-active substances differed considerably, depending on the country, the intervention method, follow-up time and substances used. Using more than one technique of intervention, short duration of treatment and the type of substance used by patients appear to facilitate adherence