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AIMS: To evaluate the feasibility of smartphone based retinal photography for diabetic retinopathy (DR) screening among Brazilian Xavante Indians and the yield of retinal images. METHODS: A non-probabilistic cluster sample of 170 individuals with and without diabetes was enrolled for ocular examination with a portable retinal camera during DR screening at two Xavante Reservations. Due to operational conditions and to optimize the field work, only the larger Xavante villages were included. Images were obtained after pupil dilation; image analysis included assessment of quality, presence of media opacities and diabetic retinopathy grading whenever possible for individuals with diabetes. RESULTS: A total of 157 individuals underwent the complete ocular imaging protocol, 95 with diabetes (60.5%). Among those with diabetes, 23 (24.2%) could not have DR graded because of media opacities. For those with gradable images, the frequency of DR was 22.2%; sight-threatening DR was present in 9.7%. The main causes for ungradable images were cataracts and asteroid hyalosis. CONCLUSIONS: The presence of DR was higher than in previous studies, calling attention for its prevention in this vulnerable population. The screening model with a smartphone-based portable retinal camera is feasible and could increase screening coverage if associated with telemedicine.

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BACKGROUND: Obstacles to current tobacco cessation programs include limited access and adherence to effective interventions. Digital interventions offer a great opportunity to overcome these difficulties, yet virtual reality has not been used as a remote and self-administered tool to help increase adherence and effectiveness of digital interventions for tobacco cessation. OBJECTIVE: This study aimed to evaluate participant adherence and smoking cessation outcomes in a pilot randomized controlled trial of the digital intervention Mindcotine (MindCotine Inc) using a self-administered treatment of virtual reality combined with mindfulness. METHODS: A sample of 120 participants was recruited in the city of Buenos Aires, Argentina (mean age 43.20 years, SD 9.50; 57/120, 47.5% female). Participants were randomly assigned to a treatment group (TG), which received a self-assisted 21-day program based on virtual reality mindful exposure therapy (VR-MET) sessions, daily surveys, and online peer-to-peer support moderated by psychologists, or a control group (CG), which received the online version of the smoking cessation manual from the Argentine Ministry of Health. Follow-up assessments were conducted by online surveys at postintervention and 90-day follow-up. The primary outcome was self-reported abstinence at postintervention, with missing data assumed as still smoking. Secondary outcomes included sustained abstinence at 90-day follow-up, adherence to the program, and readiness to quit. RESULTS: Follow-up rates at day 1 were 93% (56/60) for the TG and 100% (60/60) for the CG. At postintervention, the TG reported 23% (14/60) abstinence on that day compared with 5% (3/60) in the CG. This difference was statistically significant (χ21=8.3; P=.004). The TG reported sustained abstinence of 33% (20/60) at 90 days. Since only 20% (12/60) of participants in the CG completed the 90-day follow-up, we did not conduct a statistical comparison between groups at this follow-up time point. Among participants still smoking at postintervention, the TG was significantly more ready to quit compared to the CG (TG: mean 7.71, SD 0.13; CG: mean 7.16, SD 0.13; P=.005). A total of 41% (23/56) of participants completed the treatment in the time frame recommended by the program. CONCLUSIONS: Results provide initial support for participant adherence to and efficacy of Mindcotine and warrant testing the intervention in a fully powered randomized trial. However, feasibility of trial follow-up assessment procedures for control group participants needs to be improved. Further research is needed on the impact of VR-MET on long-term outcomes. TRIAL REGISTRATION: ISRCTN Registry ISRCTN50586181; http://www.isrctn.com/ISRCTN50586181.

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INTRODUCTION: A smartphone application named AtestaDO was developed to support physicians with medical certification of the cause of death. The objective of this study is to evaluate the acceptability of the app. METHODS: Physicians were invited to attend meetings on the proper certification of cause of death, and to evaluate the application in a national workshop in Natal (first stage) and in two large hospitals in Belo Horizonte (second and third stages). RESULTS: In Natal, 82% of 38 physicians had more than 20 years of experience and in Belo Horizonte, more than 67% of 58 physicians had less than 5 years of experience. The sections "Application interface", "How to certify the causes of death", "Practice with exercises" and "Other information for physicians" were positively evaluated by more than 50% of physicians in Belo Horizonte. In Natal, all sections were positively evaluated by at least 80% of participants. More than 70% of the participants in both Natal and the second stage of Belo Horizonte indicated they would possibly use AtestaDO to guide filling of a death certificate. The probability of using AtestaDO to teach classes on filling death certificates was 83.3% for Natal's physicians but less than 60% in Belo Horizonte. In the three stages, most physicians would recommend using the application to other colleagues. CONCLUSION: The evaluation of AtestaDO showed good acceptability. We expect that the use of this tool enables improvements in medical certification of causes of death.

INTRODUÇÃO: O aplicativo para smartphone AtestaDO foi desenvolvido para auxiliar o médico na certificação da causa de morte. Neste estudo se propõe avaliar a aceitabilidade desse aplicativo. MÉTODOS: Médicos foram convidados para participar de reuniões sobre certificação correta da causa da morte e avaliar o aplicativo em três etapas dessas reuniões, realizadas em Natal e em dois grandes hospitais de Belo Horizonte. RESULTADOS: Em Natal, 82% dos 38 médicos participantes tinham mais de 20 anos de graduação, e em Belo Horizonte, mais de 67% dos 58 médicos tinham menos de 5 anos de graduação. As seções "Interface do aplicativo", "Como atestar as causas de morte", "Prática com exercícios" e "Outras informações para o médico" foram bem avaliadas por mais de 50% dos médicos de Belo Horizonte. Em Natal, todas as seções foram bem avaliadas por pelo menos 80% dos médicos. Mais de 70% dos participantes de Natal e da segunda etapa de Belo Horizonte usariam o aplicativo para preencher a causa de morte. A probabilidade de usar o AtestaDO para dar aulas sobre preenchimento da Declaração de Óbito foi de 83% para médicos de Natal, mas inferior a 60% em Belo Horizonte. Nas três etapas, a maioria dos médicos recomendaria o uso do aplicativo para outros colegas. CONCLUSÃO: A avaliação do aplicativo AtestaDO mostrou boa aceitabilidade. Espera-se que o uso dessa ferramenta permita alcançar melhorias na certificação médica da causa do óbito.

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RESUMO Introdução: O aplicativo para smartphone AtestaDO foi desenvolvido para auxiliar o médico na certificação da causa de morte. Neste estudo se propõe avaliar a aceitabilidade desse aplicativo. Métodos: Médicos foram convidados para participar de reuniões sobre certificação correta da causa da morte e avaliar o aplicativo em três etapas dessas reuniões, realizadas em Natal e em dois grandes hospitais de Belo Horizonte. Resultados: Em Natal, 82% dos 38 médicos participantes tinham mais de 20 anos de graduação, e em Belo Horizonte, mais de 67% dos 58 médicos tinham menos de 5 anos de graduação. As seções "Interface do aplicativo", "Como atestar as causas de morte", "Prática com exercícios" e "Outras informações para o médico" foram bem avaliadas por mais de 50% dos médicos de Belo Horizonte. Em Natal, todas as seções foram bem avaliadas por pelo menos 80% dos médicos. Mais de 70% dos participantes de Natal e da segunda etapa de Belo Horizonte usariam o aplicativo para preencher a causa de morte. A probabilidade de usar o AtestaDO para dar aulas sobre preenchimento da Declaração de Óbito foi de 83% para médicos de Natal, mas inferior a 60% em Belo Horizonte. Nas três etapas, a maioria dos médicos recomendaria o uso do aplicativo para outros colegas. Conclusão: A avaliação do aplicativo AtestaDO mostrou boa aceitabilidade. Espera-se que o uso dessa ferramenta permita alcançar melhorias na certificação médica da causa do óbito.

ABSTRACT Introduction: A smartphone application named AtestaDO was developed to support physicians with medical certification of the cause of death. The objective of this study is to evaluate the acceptability of the app. Methods: Physicians were invited to attend meetings on the proper certification of cause of death, and to evaluate the application in a national workshop in Natal (first stage) and in two large hospitals in Belo Horizonte (second and third stages). Results: In Natal, 82% of 38 physicians had more than 20 years of experience and in Belo Horizonte, more than 67% of 58 physicians had less than 5 years of experience. The sections "Application interface", "How to certify the causes of death", "Practice with exercises" and "Other information for physicians" were positively evaluated by more than 50% of physicians in Belo Horizonte. In Natal, all sections were positively evaluated by at least 80% of participants. More than 70% of the participants in both Natal and the second stage of Belo Horizonte indicated they would possibly use AtestaDO to guide filling of a death certificate. The probability of using AtestaDO to teach classes on filling death certificates was 83.3% for Natal's physicians but less than 60% in Belo Horizonte. In the three stages, most physicians would recommend using the application to other colleagues. Conclusion: The evaluation of AtestaDO showed good acceptability. We expect that the use of this tool enables improvements in medical certification of causes of death.

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