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BACKGROUND: Data on disability are regularly collected by different institutions or ministries using specific tools for different purposes, for instance to estimate the prevalence of disability or eligibility of specific populations for social benefits. The interoperability of disability data collected in countries is essential for policy making and to monitor the implementation of the Convention on the Rights of Persons with Disabilities. The first objective of this paper is to map and compare tools that collect data on disability for different purposes, more specifically the Brazilian National Health Survey and the Brazilian Functioning Index to the World Health Organization (WHO) and the World Bank Model Disability Survey (MDS), currently recommended as a standard tool for disability measurement. The second objective is to demonstrate the usefulness and value of the International Classification of Functioning, Disability and Health Linking Rules to map and compare population-based surveys and other content-related tools collecting data on disability, even when these have already been developed based on the International Classification of Functioning, Disability and Health. METHODS: Disability information collected with the three different tools was mapped and compared using the International Classification of Functioning, Disability and Health Linking Rules. RESULTS: Although the disability module in the Brazilian National Health Survey is fundamentally different from the MDS, the mapping disclosed that several modules of the Brazilian National Health Survey already cover many aspects necessary to estimate prevalence and understand disability as currently recommended by the WHO and the World Bank. The Brazilian Functioning Index and the MDS are both based on the International Classification of Functioning, Disability and Health and are very similar in the approach and content of their questions on functioning. Specific information on environmental factors is essential to identify needs and barriers, as well as to devise procedures to reduce injustice and inequalities. This information is still not targeted broadly enough in both the Brazilian National Health Survey and the Brazilian Functioning Index. CONCLUSIONS: Overall, this mapping exercise showed that applying the International Classification of Functioning, Disability and Health linking rules to population-based data coming from different sources provides researchers and stakeholders involved in decision-making with standardized and straightforward information about overlaps and gaps. Implications for Rehabilitation Data on functioning and disability regularly collected with different purposes and by different institutions or ministries within a country can be compared using the International Classification of Functioning, Disability and Health as a reference framework and the International Classification of Functioning, Disability and Health linking rules. The recently published refinements of the International Classification of Functioning, Disability and Health Linking Rules go beyond the sole linking to International Classification of Functioning, Disability and Health categories and provide standardized procedures to document the perspective of linked questions or the categorization of response options. They are therefore useful to compared tools that have been developed based on the International Classification of Functioning, Disability and Health. The current disability module of the Brazilian Health Survey needs a revision to be suitable to collect data on disability that is Convention on the Rights of Persons with Disabilities conform and guarantees interoperability with disability data from other sources in Brazil, especially from disability assessment for social benefits and implementation of policies.

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OBJECTIVES: To assess the contribution of chronic conditions to the disability burden in the older men and women in Brazil. METHODS: Data from 10,290 participants of the Brazilian National Health Survey in 2013 aged 60 years or older were used. Disability was defined based on limitations in activities of daily living (ADL) and instrumental activities of daily living (IADL). Binomial additive hazards models were fitted to assess the contribution of chronic conditions to the disability prevalence. RESULTS: Back pain was the most common condition, followed by diabetes and heart diseases in men and arthritis and diabetes in women. Stroke and mental disorders were by far the most disabling conditions in men and women. A higher disability prevalence was observed in women (34.4 %, CI 32.4; 36.2 %) compared to men (28.4 %; CI 25.9; 30.8 %). The most important contributors to the disability prevalence were stroke, back pain, and arthritis among men, and diabetes, heart diseases, and arthritis in women. CONCLUSIONS: Interventions to reduce disability in the older population in Brazil should take into account the gender gap in the occurrence of chronic conditions, focusing on the main contributors to the disability burden.

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INTRODUCTION: Smoking is considered the single most important preventable cause of morbidity and mortality worldwide, contributing to increased incidence and severity of disabling conditions. The aim of this study was to assess the contribution of chronic conditions to the disability burden across smoking categories in middle-aged adults in Belgium. METHODS: Data from 10,224 individuals aged 40 to 60 years who participated in the 1997, 2001, 2004, or 2008 Health Interview Surveys in Belgium were used. Smoking status was defined as never, former (cessation ≥2 years), former (cessation <2 years), occasional light (<20 cigarettes/day), daily light, and daily heavy (≥20 cigarettes/day). To attribute disability to chronic conditions, binomial additive hazards models were fitted separately for each smoking category adjusted for gender, except for former (cessation <2 years) and occasional light smokers due to the small sample size. RESULTS: An increasing trend in the disability prevalence was observed across smoking categories in men (never = 4.8%, former (cessation ≥2 years) = 5.8%, daily light = 7.8%, daily heavy = 10.7%) and women (never = 7.6%, former (cessation ≥2 years) = 8.0%, daily light = 10.2%, daily heavy = 12.0%). Musculoskeletal conditions showed a substantial contribution to the disability burden in men and women across all smoking categories. Other important contributors were depression and cardiovascular diseases in never smokers; depression, chronic respiratory diseases, and diabetes in former smokers (cessation ≥2 years); chronic respiratory diseases, cancer, and cardiovascular diseases in daily light smokers; cardiovascular diseases and chronic respiratory diseases in men and depression and diabetes in women daily heavy smokers. CONCLUSIONS: Beyond the well-known effect of smoking on mortality, our findings showed an increasing trend of the disability prevalence and different contributors to the disability burden across smoking categories. This information can be useful from a public health perspective to define strategies to reduce disability in Belgium.

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BACKGROUND: The increase in longevity along with a high prevalence of chronic conditions contribute to increased disability burden. Despite the high occurrence of multimorbidity observed in advanced ages, most studies are restricted to the investigation of individual diseases. In this study, we assessed the impact of chronic conditions and multimorbidity on the disability burden in the older population in Belgium. METHODS: Data from 9,482 participants in the 2001, 2004, or 2008 Belgian Health Interview Surveys aged 55 years or older were analyzed. Disability was defined based on the Global Activity Limitation Indicator (GALI). To attribute disability to single chronic conditions and disease pairs, a multiple additive hazard model was fitted. RESULTS: Musculoskeletal conditions (45.3%), chronic respiratory diseases (11.2%), and cardiovascular diseases (10.2%) diseases were the most frequent conditions. Cardiovascular diseases, the co-occurrence of chronic respiratory diseases and depression, neurological diseases, cancer, and the combination of diabetes and cardiovascular diseases were the top five disabling conditions. The disability prevalence in the older population in Belgium was 35.6% (confidence interval =35.0; 36.2%). The most important contributors to the disability burden were musculoskeletal, cardiovascular, and chronic respiratory diseases. CONCLUSIONS: The present findings provide a deeper understanding of the role of chronic conditions and multimorbidity on the disability burden in the older population in Belgium. Although the disease pairs showed a low contribution to the disability burden, their occurrence presented a high impact on disability. Prevention strategies to tackle disability should target the main contributors to the disability burden and the most disabling conditions/disease pairs, especially in the clinical practice.

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The aim of this study was to analyze trends in indicators of smoking in Brazilian State capitals, according to the Surveillance System for Risk and Protective Factors for Chronic Illnesses Using a Telephone Survey (VIGITEL) in adults, from 2006 to 2011. A simple linear regression model was used (a = 5%). There was a decrease in the prevalence of smokers and heavy smokers among men and in individuals 35 to 54 years of age. Smoking also decreased among individuals with 9-11 years of schooling and in the Northeast, North, and Central West regions. For heavy smokers, the largest decline was in the Northeast. Brazil's regulatory policy has been responsible for the decline in tobacco prevalence.

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The aim of this study was to analyze trends in indicators of smoking in Brazilian State capitals, according to the Surveillance System for Risk and Protective Factors for Chronic Illnesses Using a Telephone Survey (VIGITEL) in adults, from 2006 to 2011. A simple linear regression model was used (a = 5%). There was a decrease in the prevalence of smokers and heavy smokers among men and in individuals 35 to 54 years of age. Smoking also decreased among individuals with 9-11 years of schooling and in the Northeast, North, and Central West regions. For heavy smokers, the largest decline was in the Northeast. Brazil's regulatory policy has been responsible for the decline in tobacco prevalence.

O objetivo foi analisar a tendência de indicadores do tabagismo nas capitais brasileiras, segundo dados do Sistema de Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico (VIGITEL) em adultos, 2006 a 2011. Foi utilizado modelo de regressão linear simples (a = 5%). Houve redução da prevalência de fumantes e fumantes pesados entre homens e entre indivíduos com idade de 35 a 54 anos. Para fumantes, também houve redução no estrato de 9 a 11 anos de estudo e regiões Norte e Centro-oeste. Para fumantes pesados, a queda foi na Região Nordeste. A política regulatória adotada pelo Brasil tem sido responsável pelo declínio nas prevalências do tabaco.

El objetivo fue analizar la tendencia de indicadores del tabaquismo en las capitales brasileñas, según datos del Sistema de Vigilancia de Factores de Riesgo y Protección para Enfermedades Crónicas por Encuesta Telefónica (VIGITEL) en adultos, de 2006 a 2011. Fue utilizado el modelo de regresión lineal simple (a = 5%). Hubo una reducción de la prevalencia de fumadores y fumadores crónicos entre hombres y entre individuos con edad de 35 a 54 años. En los fumadores, también hubo reducción en el estrato de 9 a 11 años de estudio y regiones Norte y Centro-oeste. En los fumadores crónicos, la caída fue en la región Nordeste. La política regulatoria adoptada por Brasil ha sido responsable del declive en las prevalencias del tabaco.

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Analisar a tendência da frequência do consumo do feijão nos anos de 2006 a 2009 nas capitais brasileiras. Trata-se de uma série histórica utilizando a base de dados do Vigitel de todas as capitais brasileiras. O consumo de feijão foi descrito por meio da frequência relativa e a tendência foi avaliada utilizando-se regressão de Poisson. O consumo de feijão cinco ou mais vezes por semana variou de 71,85% (2006) a 65,79 (2009). Na maior faixa de frequência de consumo ao longo de todo o período estudado estão incluídas as capitais Goiânia, Belo Horizonte, Palmas, Cuiabá e Brasília. As pessoas com IMC na categoria adequado/baixo peso apresentaram as maiores frequências de consumo em relação aos indivíduos com sobrepeso e obesidade. Foi observada tendência significativa de redução do consumo regular de feijão segundo ano de realização da pesquisa, exceto para a categoria de idade entre os 45 e 54 anos. Ocorreu redução significativa da frequência do consumo do feijão pela população brasileira e a adoção de políticas de monitoramento e incentivo do consumo é necessária em função dos benefícios apresentados pela leguminosa.

The scope of this paper was to analyze the trends of frequency of consumption of beans between the years 2006 and 2009 in the Brazilian capitals. This is a historical series using the Vigitel database for all Brazilian state capitals. Consumption of beans was described in terms of relative frequency and the trend was assessed using Poisson regression. Between 65.79% (2009) and 71.85% (2006) of participants reported consuming beans five or more days per week. The capitals Goiania, Belo Horizonte, Palmas, Brasilia and Cuiaba were in the highest frequency range of consumption throughout the study period. Individuals with a BMI in the appropriate and low weight category had the highest frequencies of consumption in comparison with the overweight and the obese. A significant reduction trend in the consumption of beans per year of the research, except for the 45 to 54-year-old range, was detected. The conclusion drawn was that there has been a significant reduction in the consumption of beans in the Brazilian population and the adoption of monitoring and incentive policies is necessary due to the benefits of the legume.

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The scope of this paper was to analyze the trends of frequency of consumption of beans between the years 2006 and 2009 in the Brazilian capitals. This is a historical series using the Vigitel database for all Brazilian state capitals. Consumption of beans was described in terms of relative frequency and the trend was assessed using Poisson regression. Between 65.79% (2009) and 71.85% (2006) of participants reported consuming beans five or more days per week. The capitals Goiania, Belo Horizonte, Palmas, Brasilia and Cuiaba were in the highest frequency range of consumption throughout the study period. Individuals with a BMI in the appropriate and low weight category had the highest frequencies of consumption in comparison with the overweight and the obese. A significant reduction trend in the consumption of beans per year of the research, except for the 45 to 54-year-old range, was detected. The conclusion drawn was that there has been a significant reduction in the consumption of beans in the Brazilian population and the adoption of monitoring and incentive policies is necessary due to the benefits of the legume.

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This study aimed to identify the association between alcohol and drug consumption and bullying on the one hand and involvement in situations of physical violence among adolescents 13 to 15 years in public and private schools in State capitals and the Federal District of Brazil. The study analyzed data from the National School Health Survey (PeNSE) for the year 2009. Data analysis used logistic regression. Prevalence of involvement in physical violence was 12.9% more common in boys than girls. Both genders showed associations between physical violence or being a victim of bullying and use of illegal drugs, plus the heightened effect of the combined consumption of alcohol and other drugs. In boys, alcohol consumption showed a significant association with physical violence. Having the father or both parents living at home was inversely associated with physical violence in girls. Knowledge of factors associated with physical violence among adolescents is important for supporting health promotion strategies and a culture of peace, thereby counteracting the idea of taking teenage violence for granted.

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PURPOSE: To describe protection from chronic diseases and the prevalence of risk factors with data from a telephone survey in 2010. METHODS: Telephone interviews in a random sample of adults living in Brazilian state capitals and the Federal District with residential landline telephones. The prevalence of these factors was stratified by sex, age and level of education. RESULTS: High prevalence of soft drink consumption (28.1%), fatty meat consumption (34.2%), and alcohol abuse (18%) and low fruit and vegetable intake (18%) and leisure time physical activity (15%) was verified. Approximately half the population was overweight and reported no sun protection practices. Physical inactivity and smoking afflicted almost 15% of adults. In general, risk factors were more prevalent in men, predominantly young adults with lower education levels. CONCLUSION: The results revealed differing health behavior according to socio-demographic variables. These variables should be taken into consideration in health promotion campaigns.

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OBJETIVO: descrever os principais fatores de risco e proteção para doenças crônicas com dados do inquérito telefônico de 2010. METODOLOGIA: entrevistas telefônicas realizadas em amostra probabilística dos adultos residentes nas capitais do Brasil e Distrito Federal com telefone fixo residencial. As prevalências foram estratificadas por sexo, idade e escolaridade. RESULTADOS: Foi verificado alto consumo de refrigerantes (28%), de carne com gordura (46%) e de consumo abusivo de álcool (18%), e baixo consumo de frutas e hortaliças (18%) e de atividade física no lazer (15%). Aproximadamente metade da população referiu ter excesso de peso e não se proteger da radiação solar. A inatividade física e o tabagismo atingem cerca de 15% dos adultos. Fatores de risco foram mais prevalentes em homens, adultos jovens e de menor escolaridade. CONCLUSÃO: os resultados apontam diferentes comportamentos em saúde da população segundo características sociodemográficas. Essa variabilidade deve ser considerada nas ações de promoção de saúde.

PURPOSE: To describe protection from chronic diseases and the prevalence of risk factors with data from a telephone survey in 2010. METHODS: Telephone interviews in a random sample of adults living in Brazilian state capitals and the Federal District with residential landline telephones. The prevalence of these factors was stratified by sex, age and level of education. RESULTS: High prevalence of soft drink consumption (28.1%), fatty meat consumption (34.2%), and alcohol abuse (18%) and low fruit and vegetable intake (18%) and leisure time physical activity (15%) was verified. Approximately half the population was overweight and reported no sun protection practices. Physical inactivity and smoking afflicted almost 15% of adults. In general, risk factors were more prevalent in men, predominantly young adults with lower education levels. CONCLUSION: The results revealed differing health behavior according to socio-demographic variables. These variables should be taken into consideration in health promotion campaigns.

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O objetivo deste estudo foi identificar a associação entre o consumo de álcool e outras drogas e o bullying com o envolvimento em situações de violência física entre adolescentes de 13 a 15 anos, em escolas públicas e privadas das capitais brasileiras e do Distrito Federal. Foram analisados os dados da Pesquisa Nacional de Saúde do Escolar (PeNSE) de 2009. Para análise dos dados foi utilizada a regressão logística. A prevalência de envolvimento em situações de violência física foi 12,9% maior no sexo masculino. Em ambos os sexos, foram observadas associações entre violência física e ser vítima de bullying com o uso de drogas ilícitas e efeito potencializado do consumo de álcool e drogas. Para o sexo masculino, o uso de álcool mostrou associação significante com violência física. Morar o pai ou ambos os genitores na residência apresentou associação inversa para violência física no sexo feminino. O conhecimento de fatores associados à violência física entre adolescentes é importante para auxiliar estratégias de promoção da saúde e da cultura de paz, rompendo com a ideia de que a violência entre adolescentes é algo banal e esperado.

This study aimed to identify the association between alcohol and drug consumption and bullying on the one hand and involvement in situations of physical violence among adolescents 13 to 15 years in public and private schools in State capitals and the Federal District of Brazil. The study analyzed data from the National School Health Survey (PeNSE) for the year 2009. Data analysis used logistic regression. Prevalence of involvement in physical violence was 12.9% more common in boys than girls. Both genders showed associations between physical violence or being a victim of bullying and use of illegal drugs, plus the heightened effect of the combined consumption of alcohol and other drugs. In boys, alcohol consumption showed a significant association with physical violence. Having the father or both parents living at home was inversely associated with physical violence in girls. Knowledge of factors associated with physical violence among adolescents is important for supporting health promotion strategies and a culture of peace, thereby counteracting the idea of taking teenage violence for granted.

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This study aimed to evaluate access to and utilization of various types of dental services by individuals 18 years or older in Brazil's State capitals. We gathered data from the Telephone Survey Surveillance System for Risk and Protective Factors for Chronic Diseases (VIGITEL) in 2009 (n = 54,367). More than half of the target population reported the need for dental treatment in the previous year; of these, 15.2% lacked access to dental services when needed. The private sector provided 61.1% of all dental appointments. The share of services provided by the Unified National Health System (SUS) ranged from 6.2% in the Federal District to 35.2% in Boa Vista, in the North. Multivariate Poisson regression models showed higher prevalence of dental treatment needs among women, middle-aged adults, and individuals with more schooling. Lack of access to dental care was more frequent among women, young adults, less educated individuals, and among lightener-skinned blacks. Our findings highlight sharp inequalities in the use of and access to dental services in the Brazilian State capitals.

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Objetivo: apresentar a metodologia e resultados da implantação da vigilância de fatores de risco e proteção para doenças e agravos não transmissíveis (DANT) em município de pequeno porte, Anchieta, no estado do Espírito Santo, Brasil, em 2010. Métodos: estudo transversal de base populacional com realização de exames bioquímicos, aferição da pressão arterial, avaliação antropométrica e eletrocardiograma da população-alvo. Resultados: aproximadamente 25,0 por cento dos entrevistados relataram consumo regular de refrigerante, 45,2 por cento, carne com gordura, e 22,5 por cento, abuso de bebida alcoólica; 14,1 por cento referiram ser inativos, 16,2 por cento, fumantes, 52,1 por cento apresentaram excesso de peso auto-referido, e 16,9 por cento, obesidade; sobre fatores de proteção, 5,0 por cento da população referiu consumir frutas e hortaliças conforme recomendado, e 3,6 por cento, atividade física no lazer; a prevalência de uso de cinto de segurança no banco da frente foi de 74,0 por cento, e 83,5 por cento dos motociclistas referiram utilizar capacete; entre os indivíduos que realizaram exames, 49,2 por cento apresentaram hipercolesterolemia, 46,0 por cento, lesão renal, 19,0 por cento, alteração em eletrocardiograma e 5,8 por cento, diabetes. Conclusão: a metodologia utilizada permitiu conhecer a prevalência dos fatores de risco e proteção para DANT em município de pequeno porte; ações de promoção da saúde, vigilância, prevenção e atenção estão sendo elaboradas com base nos resultados encontrados.

Objective: to present the methodology and results of the implementation of surveillance for risk and protective factors for non-communicable diseases (NCD) and injuries in a small city, Anchieta, in the State of Espírito Santo, Brazil, in 2010. Methods: a population-based cross sectional study with blood sample collection, blood pressure, anthropometric measurements and electrocardiogram of the target-population. Results: approximately 25.0 per cent adults interviewed reported drinking soft drinks regularly, 45.2 per cent, eat meat with visible fat, and 22.5 per cent, harmful use of alcohol; 14.1 per cent reported physical inactivity, 16.2 per cent, tobacco smoking, 52.1 per cent, self-reported overweight, and 16.9 per cent, obesity; among protective factors, 5.0 per cent reported fruit and vegetable intake as recommended, and 3.6 per cent, leisure time physical activity; prevalence of seat belt use in front seat was 74.0 per cent; helmet use was reported by 83.5 per cent of motorcyclists; among individuals who performed blood tests, 49.2 per cent had hypercholesterolemia, 46.0 per cent presented some stage of chronic kidney disease, 19.0 per cent, cardiovascular dysfunction according to electrocardiogram, and 5.8 per cent, diabetes. Conclusion: the methodology allowed to know the risk and protective factors for NCD in a small city of Brazil; actions on health promotion, surveillance, prevention and health care are being developed, based on the results of this study.

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Pretendeu-se descrever o padrão de utilização, acesso e tipo de serviço odontológico utilizado por adultos e idosos das capitais brasileiras segundo características sociodemográficas. Foram utilizados dados do Sistema de Vigilância de Fatores de Risco e Proteção para Doenças Crônicas por Inquérito Telefônico (VIGITEL) de 2009 (n = 54.367). Mais da metade da população revelou necessitar de tratamento odontológico no último ano e desta, 15,2% não conseguiram atendimento. O uso de serviço odontológico privado foi de 61,1%. A participação do Sistema Único de Saúde variou de 6,2% no Distrito Federal a 35,2% em Boa Vista. Análises multivariáveis de Poisson revelaram que as maiores prevalências de percepção de necessidades de tratamento ocorreram nas mulheres, nos adultos de meia idade e nos mais escolarizados. Falta de acesso aos serviços odontológicos foram mais prevalentes em mulheres, nos mais jovens, nos menos escolarizados e nos pardos. Os resultados deste estudo revelam a existência de marcantes iniquidades na utilização e acesso de serviços odontológicos nas capitais brasileiras.

This study aimed to evaluate access to and utilization of various types of dental services by individuals 18 years or older in Brazil's State capitals. We gathered data from the Telephone Survey Surveillance System for Risk and Protective Factors for Chronic Diseases (VIGITEL) in 2009 (n = 54,367). More than half of the target population reported the need for dental treatment in the previous year; of these, 15.2% lacked access to dental services when needed. The private sector provided 61.1% of all dental appointments. The share of services provided by the Unified National Health System (SUS) ranged from 6.2% in the Federal District to 35.2% in Boa Vista, in the North. Multivariate Poisson regression models showed higher prevalence of dental treatment needs among women, middle-aged adults, and individuals with more schooling. Lack of access to dental care was more frequent among women, young adults, less educated individuals, and among lightener-skinned blacks. Our findings highlight sharp inequalities in the use of and access to dental services in the Brazilian State capitals.

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OBJECTIVES: In order to estimate the prevalence of influenza like illness (ILI) in adults from all state capitals and geographic regions in Brazil, a periodical monitoring of ILI cases by the national telephone survey (VIGITEL) was carried out in 2010. METHOD: A cross-sectional study with 47,876 telephone interviews in the state capitals and Federal District, a probabilistic sample of adult population (>18 years-old) with landline telephone. Questions concerning the results of ILI cases and pandemic influenza (H1N1) 2009, from January 10 to November 30, were analyzed. The proportion of cases stratified by sociodemographic characteristics and Brazilian geographic region was weighted with data from the National Survey with Household Sampling (PNAD) 2008. RESULTS: The prevalence of ILI cases in the last 30 days before interview was 31.2% (95%CI 30.2-32.2%) for all state capitals and the Federal District. This prevalence was higher among women, young adults (18 to 29 years-old) and individuals with 9 to 11 years of schooling. According to the geographic region analysis, Northern Brazil presented the highest prevalence of ILI cases. A tendency to increase with further decrease was observed among the geographic regions, except the Northeast. Need for health care assistance was reported by 26.8% (95%CI 25.1-28.5) from ILI cases. Among ILI cases that sought health care assistance, 2.6% (95%CI 1.8-3.4) reported pandemic influenza (H1N1) 2009 medical suspicion. CONCLUSION: The results of this survey supported influenza surveillance as it provided timeliness and useful surveillance information, which were not captured by the traditional surveillance system, as the occurrence of ILI and need of health care assistance.

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The identification of individuals with respiratory symptoms (RS) is important for the early detection of tuberculosis. The aim of this study was to estimate the prevalence of RS in three administrative regions of the Federal District, Brazil. For this, we used the 30 by 7 cluster sampling technique proposed by the World Health Organization. Individuals with RS were defined as those aged 15 years or older living in the administrative regions of Estrutural, Itapoã, or Varjão and reporting a cough lasting at least 3 weeks at the date of the interview. The prevalence of RS was 5.7% in Estrutural and Varjão (95% CI: 2.4-9.0) and 4.8% in Itapoã (95%CI: 1.6-7.9), with a design effect close to 1.0. In Estrutural and Itapoã, fewer years of schooling, and in Itapoã and Varjão, lower income, were associated with RS. Cigarette smoking was associated with the presence of RS in all regions. The prevalence of RS in the three administrative regions investigated is consistent with that of other areas with a similar socioeconomic profile.

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A captação de sintomáticos respiratórios (SR) é importante para a detecção precoce de tuberculose. O objetivo deste estudo foi estimar a prevalência de SR em três regiões administrativas (RA) do Distrito Federal, Brasil. Para tanto, foi utilizada a técnica de amostragem por conglomerados (30 por 7) proposta pela Organização Mundial da Saúde. Foram definidos como SR os indivíduos com 15 anos ou mais residentes nas RAs Estrutural, Itapoã ou Varjão e que apresentassem tosse há pelo menos 3 semanas na data da entrevista. A prevalência de SR em Estrutural e Varjão foi de 5,7 por cento (IC95 por cento: 2,4 a 9,0), e em Itapoã, de 4,8 por cento (IC95 por cento: 1,6 a 7,9), com efeito de desenho próximo de 1,0. Em Estrutural e Itapoã, menos anos de estudo, e em Itapoã e Varjão, menor renda, estiveram associados com ser SR. O tabagismo esteve associado com a presença de sintomas respiratórios em todas as RAs. A prevalência de SR está de acordo com aquela encontrada em outras áreas com perfil socioeconômico semelhante ao das áreas estudadas.

The identification of individuals with respiratory symptoms (RS) is important for the early detection of tuberculosis. The aim of this study was to estimate the prevalence of RS in three administrative regions of the Federal District, Brazil. For this, we used the 30 by 7 cluster sampling technique proposed by the World Health Organization. Individuals with RS were defined as those aged 15 years or older living in the administrative regions of Estrutural, Itapoã, or Varjão and reporting a cough lasting at least 3 weeks at the date of the interview. The prevalence of RS was 5.7 percent in Estrutural and Varjão (95 percent CI: 2.4-9.0) and 4.8 percent in Itapoã (95 percentCI: 1.6-7.9), with a design effect close to 1.0. In Estrutural and Itapoã, fewer years of schooling, and in Itapoã and Varjão, lower income, were associated with RS. Cigarette smoking was associated with the presence of RS in all regions. The prevalence of RS in the three administrative regions investigated is consistent with that of other areas with a similar socioeconomic profile.

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The triads method is applied in validation studies of dietary intake to evaluate the correlation between three measurements (food frequency questionnaire, reference method and biomarker) and the true intake using validity coefficients (Á). The main advantage of this technique is the inclusion of the biomarker, which presents independent errors compared with those of the traditional methods. The method assumes the linearity between the three measurements and the true intake and independence between the three measurement errors. Limitations of this technique include the occurrence of ρ > 1, known as "Heywood case", and the existence of negative correlations, which do not allow the calculation of Á. The objective of this review is to present the concept of the method, describe its application and examine the validation studies of dietary intake that use the triads method. We also conceptualize the "bootstrap" method, used to estimate the confidence intervals of the validity coefficients.

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