Efficacy and safety of ozone therapy for knee osteoarthritis: an umbrella review of systematic reviews.

The objective of this study is to evaluate the effectiveness and safety of ozone therapy (OT) in the treatment of knee osteoarthritis (KOA), which is the most common form of the disease. We analysed systematic reviews (SRs) of randomised controlled trials (RCTs) using the "A MeaSurement Tool to Assess systematic Reviews" (AMSTAR2) instrument to evaluate their quality. We developed a narrative synthesis report with eight SRs (15 RCTs/3,685 patients) to summarise the findings. The AMSTAR2 analysis indicated that all reviews had critically low confidence ratings. Statistically significant effects in pain reduction using OT compared to placebo groups were reported in three SRs. OT was shown to be comparable to other therapies in one SR and not superior in the other five. Six SRs highlighted the need for additional RCTs with improved methodological quality to confirm the efficacy of OT for KOA. SRs found fewer consistent effects for improving joint function. Regarding safety, seven SRs reported a low prevalence of minor adverse events linked with OT. Finally, this umbrella review highlights the beneficial effects and safety of OT in the treatment of KOA, particularly in pain control. The low methodological quality of RCTs and SRs limits the possibility of drawing conclusions on the effectiveness of the procedure in comparison to other therapies. Ensure adequate compliance with guidelines such as Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and AMSTAR2 has the ability to improve the quality of SRs in this area.

Spatial and temporal patterns of infant mortality and its components in Rio de Janeiro / Padrões espaciais e temporais da mortalidade infantil e seus componentes no Rio de Janeiro

ABSTRACT Objectives. The study aims to assess the trend of neonatal, post-neonatal, and infant mortality from 1996 to 2020 within the metropolitan region of the state of Rio de Janeiro and other regions. Methods. Ecological study using the region as analysis unity. Data were accessed from the Mortality Information System and Live Birth Information System in the capital Rio de Janeiro, in the neighboring areas of Niterói, São Gonçalo, Baixada Fluminense, and the remaining regions of the state of Rio de Janeiro State. We applied Poisson multilevel modeling, where the models' response variables were infant mortality and its neonatal and post neonatal components. Fixed effects of the adjusted models were region and death year variables. Results. During the 1996-2020 period, the Baixada Fluminense showed the highest infant mortality rate as to its neonatal and post neonatal components. All adjusted models showed that the more recent the year the lower the mortality risk. Niterói showed the lowest adjusted risk of infant mortality and its neonatal and post neonatal components. Conclusion. Baixada Fluminense showed the highest mortality risk for infant mortality and its neonatal and post-neonatal components in the metropolitan region. The stabilization in mortality rates in recent years was identified by the research.

RESUMO Objetivos. Avaliar a tendência da mortalidade neonatal, pós-neonatal e infantil de 1996 a 2020, na região metropolitana do estado do Rio de Janeiro e nas outras regiões. Métodos. Estudo ecológico utilizando regiões como unidade de análise. Os dados foram acessados no Sistema de Informações sobre Mortalidade e Sistema de Informações sobre Nascidos Vivos da Capital (Rio de Janeiro), dos territórios vizinhos (Niterói, São Gonçalo e Baixada Fluminense) e das outras regiões do Estado do Rio de Janeiro. Utilizamos a modelagem multinível de Poisson, onde as variáveis de resposta dos modelos foram mortalidade infantil e seus componentes neonatal e pós-neonatal. Os efeitos fixos dos modelos ajustados foram região e ano da morte. Resultados. No período 1996-2020, a Baixada Fluminense apresentou a maior taxa de mortalidade infantil de seus componentes neonatal e pós-natal na região metropolitana. Todos os modelos ajustados mostraram que quanto mais recente o ano, menor o risco de mortalidade. O risco ajustado da mortalidade infantil e seus componentes neonatal e pós-neonatal foi menor em Niterói. Conclusão. A Baixada Fluminense apresentou o maior risco de mortalidade infantil e de seus componentes neonatal e pós-neonatal na região metropolitana. Detectamos estabilização das taxas de mortalidade nos últimos anos.

Antioxidant Activities of Hydroxylated Naphthalenes: The Role of Aryloxyl Radicals.

Herein is delineated a first systematic framework for the definition of structure-antioxidant property relationships in the dihydroxynaphthalene (DHN) series. The results obtained by a combined experimental and theoretical approach revealed that 1,8-DHN is the best performing antioxidant platform, with its unique hydrogen-bonded peri-hydroxylation pattern contributing to a fast H atom transfer process. Moreover, the comparative analysis of the antioxidant properties of DHNs carried out by performing DPPH and FRAP assays and laser flash photolysis experiments, revealed the higher antioxidant power associated with an α-substitution pattern (i. e. in 1,8- and 1,6-DHN) with respect to DHNs exhibiting a ß-substitution pattern (i. e. in 2,6- and 2,7-DHN). DFT calculations and isolation and characterization of the main oligomer intermediates formed during the oxidative polymerization of DHNs supported this evidence by providing unprecedented insight into the generation and fate of the intermediate naphthoxyl radicals, which emerged as the main factor governing the antioxidant activity of DHNs.

Applying fuzzy qualitative comparative analysis to identify typical symptoms of COVID-19 infection in a primary care unit, Rio de Janeiro, Brazil.

This study aims to identify a set of symptoms that could be predictive of SARS-CoV-2 cases in the triage of Primary Care services with the contribution of Qualitative Comparative Analysis (QCA) using Fuzzy Sets (fsQCA). A cross-sectional study was carried out in a Primary Health Care Unit/FIOCRUZ from 09/17/2020 to 05/05/2021. The study population was suspect cases that performed diagnostic tests for COVID-19. We collected information about the symptoms to identify which configurations are associated with positive and negative cases. For analysis, we used fsQCA to explain the outcomes "being a positive case" and "not being a positive case". The solution term "loss of taste or smell and no headache" showed the highest degree of association with the positive result (consistency = 0.81). The solution term "absence of loss of taste or smell combined with the absence of fever" showed the highest degree of association (consistency = 0,79) and is the one that proportionally best explains the negative result. Our results may be useful to the presumptive clinical diagnosis of COVID-19 in scenarios where access to diagnostic tests is not available. We used an innovative method used in complex problems in Public Health, the fsQCA.

Dihydroxynaphthalene-Based Allomelanins: A Source of Inspiration for Innovative Technological Materials.

Melanins are a wide class of natural pigments biosynthesized by different kinds of living organisms throughout all of the life domains, from bacteria to fungi, plants, and mammals. The biological functions played by these natural pigments are different (i.e., camouflage, radioprotection, thermoregulation) and ascribable to a peculiar set of physical-chemical properties making melanins a unique class of biopolymers. Among these, allomelanins from 1,8-dihydroxynaphthalene (1,8-DHNmel) produced by some Ascomycetes have recently attracted particular interest for their robustness and ability to protect fungi against both hostile (i.e., attack from fungicidal agents) and extreme (i.e., high energy radiations) environments. Starting from this background, in this mini-review we offer a panorama of the recent advances on the oxidative chemistry of 1,8-DHN leading to the formation of allomelanin mimics with tailored structural and functional properties for technological applications.

Mortality by colon, lung, esophagus, prostate, cervix and breast cancers in Brazilian capitals, 2000-2015: a multilevel analysis.

This study aimed to analyze the role of period, geographic and socio demographic factors in cancer-related mortality by prostate, breast, cervix, colon, lung and esophagus cancer in Brazilians capitals (2000-2015). Ecological study using data of Brazilian Mortality Information. Multilevel Poisson models were used to estimate the adjusted risk of cancer mortality. Mortality rate levels were higher in males for colon, lung and esophageal cancers. Mortality rates were highest in the older. Our results showed an increased risk of colon cancer mortality in both sexes from 2000 to 2015, which was also evidenced for breast and lung cancers in women. In both genders, the highest mortality risk for lung and esophageal cancers was observed in Southern capitals. Midwestern, Southern and Southeastern capitals showed the highest mortality risk for colon cancer both for males and females. Colon cancer mortality rate increased for both genders, while breast and lung cancers mortality increased only for women. The North region showed the lowest mortality rate for breast, cervical, colon and esophageal cancers. The Midwest and Northeast regions showed the highest mortality rates for prostate cancer.

Mortality by colon, lung, esophagus, prostate, cervix and breast cancers in Brazilian capitals, 2000-2015: a multilevel analysis / Mortalidade por câncer de cólon, pulmão, esôfago, próstata, colo do útero e mama nas capitais brasileiras, 2000-2015: uma análise multinível

Abstract This study aimed to analyze the role of period, geographic and socio demographic factors in cancer-related mortality by prostate, breast, cervix, colon, lung and esophagus cancer in Brazilians capitals (2000-2015). Ecological study using data of Brazilian Mortality Information. Multilevel Poisson models were used to estimate the adjusted risk of cancer mortality. Mortality rate levels were higher in males for colon, lung and esophageal cancers. Mortality rates were highest in the older. Our results showed an increased risk of colon cancer mortality in both sexes from 2000 to 2015, which was also evidenced for breast and lung cancers in women. In both genders, the highest mortality risk for lung and esophageal cancers was observed in Southern capitals. Midwestern, Southern and Southeastern capitals showed the highest mortality risk for colon cancer both for males and females. Colon cancer mortality rate increased for both genders, while breast and lung cancers mortality increased only for women. The North region showed the lowest mortality rate for breast, cervical, colon and esophageal cancers. The Midwest and Northeast regions showed the highest mortality rates for prostate cancer.

Resumo Este estudo teve como objetivo analisar o papel de fatores temporais, geográficos e sociodemográficos na mortalidade por câncer de próstata, mama, colo do útero, cólon, pulmão e esôfago nas capitais brasileiras (2000-2015). Estudo ecológico utilizando informações brasileiras de mortalidade. Modelos de Poisson multinível foram usados ​​para estimar o risco ajustado de mortalidade por câncer. Os níveis de mortalidade foram maiores em homens para câncer de cólon, pulmão e esôfago. As taxas de mortalidade foram mais altas nos idosos. Nossos resultados mostraram risco aumentado de mortalidade por câncer de cólon em ambos os sexos de 2000 a 2015, o que também foi evidenciado para câncer de mama e de pulmão em mulheres. Em ambos os sexos, o maior risco de mortalidade para câncer de pulmão e esôfago foi observado nas capitais do Sul. As capitais do Centro-Oeste, Sul e Sudeste apresentaram o maior risco de mortalidade por câncer de cólon tanto para homens quanto para mulheres. A taxa de mortalidade por câncer de cólon aumentou para ambos os sexos, enquanto a mortalidade por câncer de mama e de pulmão aumentou apenas para as mulheres. A região Norte apresentou a menor taxa de mortalidade por câncer de mama, colo do útero, cólon e esôfago. As regiões Centro-Oeste e Nordeste apresentaram as maiores taxas de mortalidade por câncer de próstata.

Analysis of the Main Groups Victimized by Familiar Violence and by Violence by a Known Person in Brazil.

ABSTRACT: This study aims to evaluate the ratio of the number of cases of family violence and violence by a known person, over the four surveys that took place in 2006, 2007, 2009, and 2011, within the population treated in the Brazilian health services, according to demographic and socioeconomic characteristics. Data from the Vigilância de Violências e Acidentes survey was used. The variables age, victim sex, aggressor sex, race, and schooling level were considered in the analysis. This study pointed out decreasing trend in the number of violence-related care within the older age group. The number of familial violence-related care per victim sex was higher for male victims when the aggressor was female, and conversely, it was higher for female victims when the aggressor was male. The number of violence-related care was mostly higher in non-White people than in White. People with low schooling levels showed the highest ratio of the number of violence-related care.

The Effect of Continuous Low-Intensity Exposure to Electromagnetic Fields from Radio Base Stations to Cancer Mortality in Brazil.

BACKGROUND: this study aims to estimate the rate of death by cancer as a result of Radio Base Station (RBS) radiofrequency exposure, especially for breast, cervix, lung, and esophagus cancers. METHODS: we collected information on the number of deaths by cancer, gender, age group, gross domestic product per capita, death year, and the amount of exposure over a lifetime. We investigated all cancer types and some specific types (breast, cervix, lung, and esophagus cancers). RESULTS: in capitals where RBS radiofrequency exposure was higher than 2000/antennas-year, the average mortality rate was 112/100,000 for all cancers. The adjusted analysis showed that, the higher the exposure to RBS radiofrequency, the higher cancer mortality was. The highest adjusted risk was observed for cervix cancer (rate ratio = 2.18). The spatial analysis showed that the highest RBS radiofrequency exposure was observed in a city in southern Brazil that also showed the highest mortality rate for all types of cancer and specifically for lung and breast cancer. CONCLUSION: the balance of our results indicates that exposure to radiofrequency electromagnetic fields from RBS increases the rate of death for all types of cancer.

High-Energy Proton-Beam-Induced Polymerization/Oxygenation of Hydroxynaphthalenes on Meteorites and Nitrogen Transfer from Urea: Modeling Insoluble Organic Matter?

Formation and structural modification of oxygenated polycyclic aromatic hydrocarbons (oxyPAHs) by UV irradiation on minerals have recently been proposed as a possible channel of PAH transformation in astrochemical and prebiotic scenarios of possible relevance for the origin of life. Herein, it is demonstrated that high-energy proton-beam irradiation in the presence of various meteorites, including stony iron, achondrite, and chondrite types, promotes the conversion of two representative oxyPAH compounds, 1-naphthol and 1,8-dihydroxynaphthalene, to complex mixtures of oxygenated and oligomeric derivatives. The main identified products include polyhydroxy derivatives, isomeric dimers encompassing benzofuran and benzopyran scaffolds, and, notably, a range of quinones and perylene derivatives. Addition of urea, a prebiotically relevant chemical precursor, expanded the range of identified species to include, among others, quinone diimines. Proton-beam irradiation of oxyPAH modulated by nitrogen-containing compounds such as urea is proposed as a possible contributory mechanism for the formation and processing of insoluble organic matter in meteorites and in prebiotic processes.

Synthetic mycomelanin thin films as emergent bio-inspired interfaces controlling the fate of embryonic stem cells.

The fungal pathways of melanin synthesis have so far been little considered as a source of bio-inspiration in the field of functional materials, despite the interesting properties exhibited by Ascomycetes melanins from 1,8-dihydroxynaphthalene (1,8-DHN), including the ability to shield organisms from ionizing radiation. Herein, the processing techniques and characterizations of mycomelanin thin films obtained from the solid state polymerization of 1,8-DHN is reported for the first time. Overall, the results highlighted the role of synthetic mycomelanin thin films as a prototype of next generation bioinspired interfaces featuring high structural regularity and ultrasmooth morphology, high robustness against peroxidative bleaching and adhesion under water conditions, good biocompatibility and unprecedented effects in inducing the spontaneous differentiation of embryonic stem cells prevalently towards the endodermal lineages in the absence of added factors. These data open up new avenues towards the applications of this biomaterial in the fields of tissue engineering and regenerative medicine.

Association between visual problems, insufficient emotional support and urinary incontinence with disability in elderly people living in a poor district in Rio de Janeiro, Brazil: A six-year follow-up study.

INTRODUCTION: Disability follows the rapid rate of population ageing, imposing a huge burden on society. Functional assessment in older people can identify predictors of disability. OBJECTIVE: Analyze the incidence and the risk factors for disability in activities of daily living (ADL) and instrumental activities of daily living (IADL) in older adults over six years. METHODS: Six year-follow up study initiated in 2010. The baseline non-probabilistic sample consisted of 180 independent community dwelling individuals aged 60 and over. The procedures comprised an interview with sociodemographic data, questions about falls, urinary incontinence, self-rated health, and assessment of ADL, IADL, mobility, depression, vision, hearing, cognition, nutrition, grip strength and social support. The second research was carried out by telephone and assessed ADL and IADL. Logistic regression models calculated the odds of disability in ADL and IADL according to the age, sex and all other variables. RESULTS: At six-year follow-up, 118 participants were still alive (65.6%), 31 died (17%) and other 31 were missed (17%). The incidence of disability to performADL and IADL were 25.4% and 32.3%, respectively. The regression logistic models revealed thaturinary incontinence (OR = 3.2; P = 0.03) and insufficient emotional support (OR = 3.8; P = 0.04) were associated with ADL disability, while visual problems (OR: 2.9; P = 0.03) and insufficient emotional support (OR: 5.6; P = 0.01) were associated with IADL disability. CONCLUSION: The current study has identified that insufficient emotional support, visual problems and urinary incontinence are associated with disability in older adults. The routine assessment of these problems in the primary care clinics enable the implementation of strategies aimed at reducing or postponing disability. Educating patients and families will also enable better choices to reduce the risk of functional decline.

Prevalence and factors associated with caregiver abuse of elderly dependents: The hidden face of family violence. / Prevalência e fatores associados ao abuso de cuidadores contra idosos dependentes: a face oculta da violência familiar.

This cross-sectional study was carried out in Manguinhos, Rio de Janeiro, Brazil and aimed to identify the prevalence and factors associated with familial violence perpetrated by caregivers against elderly dependents. A sample of 135 pairs was evaluated using instruments to assess both caregivers (social support, alcoholism, burden, violence) and elders (depression, cognition, functional capacity). Statistical tests compared the percentages of reported violence according to the characteristics of caregiver and elders. A logistic regression model investigated the association between violence and caregiver/ elder characteristics. More than 30% of caregivers gave responses consistent with risk of elder abuse. Among them, high burden level and comorbid alcohol abuse increased the risk of violence by 11 and 3.8 times, respectively. Elderly men were 2.9 times more likely to be mistreated than elderly women, and depressed ones were 6.9 times more likely to report mistreatment than those without depression. Conclusion: We detected a high prevalence of caregiver violence against elderly dependents, with substantially greater risk among caregivers with high levels of burden, alcohol-related problems, and those caring for depressed elders. Family support strategies are needed to reduce domestic violence and protect elderly victims.

Realizou-se estudo transversal em Manguinhos, na cidade do Rio de Janeiro para identificar prevalência de violência de cuidadores contra idosos dependentes e fatores associados. Uma amostra de conveniência de 135 duplas foi avaliada. Testes estatísticos compararam os percentuais de violência, segundo as características do cuidador e do idoso e um modelo de regressão logística investigou a associação entre violência e as características de ambos. Mais de 30% dos cuidadores apresentaram indícios de abuso. Em relação aos cuidadores, elevados níveis de sobrecarga e problemas com álcool aumentaram em 11 e 3,8 vezes as chances de ocorrência de violência, respectivamente, quando comparados aos grupos de referência. Quanto aos idosos, homens e indivíduos com depressão tiveram chance 2,9 e 6,9 vezes maior de sofrerem maus tratos, em relação às mulheres e aos que não tinham depressão, respectivamente. A elevada prevalência de maus tratos por parte de cuidadores que apresentam altos níveis de sobrecarga, problemas relacionados ao álcool e que cuidam de idosos deprimidos requer a adoção de medidas de apoio familiar.

A Robust Fungal Allomelanin Mimic: An Antioxidant and Potent π-Electron Donor with Free-Radical Properties that can be Tuned by Ionic Liquids.

Developing effective strategies to increase the chemical stability and to fine-tune the physico-chemical properties of melanin biopolymers by rational control of π-electron conjugation is an important goal in materials science for biomedical and technological applications. Herein we report that poly-1,8-dihydroxynaphthalene (pDHN), a non-nitrogenous, catechol-free fungal melanin mimic, displays a high degree of structural integrity (from MALDI-MS and CP/MAS 13 C NMR analysis), a strong radical scavenging capacity (DPPH and FRAP assays), and an unusually intense EPR signal (g=2.0030). Morphological and spectral characterization of pDHN, along with deassembly experiments in ionic liquids, indicated amorphous aggregates of small globular structures with an estimated stacking distance of 3.9 Šand broadband absorption throughout the visible range. These results indicate that DHN-based melanins exhibit a high structural integrity and enhanced antioxidant and free-radical properties of potentially greater biomedical and technological relevance than for typical indole-based eumelanins.

Prevalência e fatores associados ao abuso de cuidadores contra idosos dependentes: a face oculta da violência familiar / Prevalence and factors associated with caregiver abuse of elderly dependents: The hidden face of family violence

Resumo Realizou-se estudo transversal em Manguinhos, na cidade do Rio de Janeiro para identificar prevalência de violência de cuidadores contra idosos dependentes e fatores associados. Uma amostra de conveniência de 135 duplas foi avaliada. Testes estatísticos compararam os percentuais de violência, segundo as características do cuidador e do idoso e um modelo de regressão logística investigou a associação entre violência e as características de ambos. Mais de 30% dos cuidadores apresentaram indícios de abuso. Em relação aos cuidadores, elevados níveis de sobrecarga e problemas com álcool aumentaram em 11 e 3,8 vezes as chances de ocorrência de violência, respectivamente, quando comparados aos grupos de referência. Quanto aos idosos, homens e indivíduos com depressão tiveram chance 2,9 e 6,9 vezes maior de sofrerem maus tratos, em relação às mulheres e aos que não tinham depressão, respectivamente. A elevada prevalência de maus tratos por parte de cuidadores que apresentam altos níveis de sobrecarga, problemas relacionados ao álcool e que cuidam de idosos deprimidos requer a adoção de medidas de apoio familiar.

Abstract This cross-sectional study was carried out in Manguinhos, Rio de Janeiro, Brazil and aimed to identify the prevalence and factors associated with familial violence perpetrated by caregivers against elderly dependents. A sample of 135 pairs was evaluated using instruments to assess both caregivers (social support, alcoholism, burden, violence) and elders (depression, cognition, functional capacity). Statistical tests compared the percentages of reported violence according to the characteristics of caregiver and elders. A logistic regression model investigated the association between violence and caregiver/ elder characteristics. More than 30% of caregivers gave responses consistent with risk of elder abuse. Among them, high burden level and comorbid alcohol abuse increased the risk of violence by 11 and 3.8 times, respectively. Elderly men were 2.9 times more likely to be mistreated than elderly women, and depressed ones were 6.9 times more likely to report mistreatment than those without depression. Conclusion: We detected a high prevalence of caregiver violence against elderly dependents, with substantially greater risk among caregivers with high levels of burden, alcohol-related problems, and those caring for depressed elders. Family support strategies are needed to reduce domestic violence and protect elderly victims.

Risk factors for the ill-defined causes of death in the Brazilian states: a multilevel analysis.

This study describes the spatial-temporal changes of the proportion of ill-defined causes of death in Brazil (1998-2012) and investigates which demographic and socioeconomic factors affect this proportion. We collected information of the proportion of ill-defined causes of death by age (15-59 years), sex, period, locality, and socioeconomic data. We used a multilevel Poisson model to investigate which factors affect the risk of ill-defined causes of death. Unlike states located in the South and Midwest, we detected clusters with high proportional levels of these deaths in states in the North and Northeast regions. A greater proportion occurred in 1998-2002 (0.09), in the North and Northeast (0.14 and 0.12, respectively), in older age groups (0.09), and in places with poor socioeconomic conditions. The adjusted analysis showed differences in proportion according to the region, age, period, schooling, social inequality, and income. The results indicate that the lower the age group and the better the socioeconomic situation, the lower the risk to register the cause of death as ill-defined. Although over the past years, the quality of Brazil's mortality data has gradually increased, investments towards improving mortality registries cannot be discontinued.

Risk factors for the ill-defined causes of death in the Brazilian states: a multilevel analysis / Fatores de risco associados aos óbitos por causas mal definidas nos estados do Brasil: uma análise multinível

Abstract This study describes the spatial-temporal changes of the proportion of ill-defined causes of death in Brazil (1998-2012) and investigates which demographic and socioeconomic factors affect this proportion. We collected information of the proportion of ill-defined causes of death by age (15-59 years), sex, period, locality, and socioeconomic data. We used a multilevel Poisson model to investigate which factors affect the risk of ill-defined causes of death. Unlike states located in the South and Midwest, we detected clusters with high proportional levels of these deaths in states in the North and Northeast regions. A greater proportion occurred in 1998-2002 (0.09), in the North and Northeast (0.14 and 0.12, respectively), in older age groups (0.09), and in places with poor socioeconomic conditions. The adjusted analysis showed differences in proportion according to the region, age, period, schooling, social inequality, and income. The results indicate that the lower the age group and the better the socioeconomic situation, the lower the risk to register the cause of death as ill-defined. Although over the past years, the quality of Brazil's mortality data has gradually increased, investments towards improving mortality registries cannot be discontinued.

Resumo Este estudo descreve as mudanças espaço-temporais da proporção de causas mal definidas no Brasil (1998-2012) e seus fatores associados. Coletamos informações da proporção de óbitos por causas mal definidas por idade (15-59 anos), sexo, período, local de residência, além de fatores socioeconômicos. Utilizou-se modelo multinível de Poisson para investigar os fatores associados às causas mal definidas dos óbitos. Ao contrário dos estados do sul e centro-oeste, identificou-se clusters com elevados níveis proporcionais destes óbitos nos estados do norte, nordeste e sudeste. A maior proporção de óbitos mal definidos ocorreu em 1998-2002 (0,09), no norte e nordeste (0,14 e 0,12, respectivamente), nos grupos etários mais velhos (0,09) e nos locais com condições socioeconômicas desfavoráveis. A análise ajustada indicou diferença dos níveis de causas mal definidas de acordo com a região, a idade, o período, a escolaridade, a desigualdade social e a renda. Nossos resultados sugerem que quanto menor a faixa etária e melhores as condições socioeconômicas, menor o risco de óbitos mal definidos. Apesar de nos últimos anos a qualidade dos dados de mortalidade no Brasil ter aumentado, os investimentos na melhoria do registro dos óbitos não podem ser descontinuadas.

Distribution of pulmonary tuberculosis in Rio de Janeiro (Brazil): a spatial analysis.

The aim of this study was to analyze the spatial distribution of the tuberculosis endemic in Rio de Janeiro State from 2002 to 2011. A retrospective study was conducted in the state of Rio de Janeiro from 2002 to 2011. Spatial analysis techniques were used to describe the distribution of tuberculosis incidence in the state. Multilevel Poisson regression model was used to access the relationship of tuberculosis and the following factors: "sex", "age-group" and "diagnostic year" (individual-level factors). Demographic density and municipality were also included in the model as contextual-level factors. A reduction in endemic tuberculosis was observed over the years. The highest incidence rates were concentrated on the south coast of the state, covering Rio de Janeiro City (capital) and neighboring cities. We detected a significant clustering of high TB incidence rates on the south coast of the state and a cluster of low incidence in the northeastern region of state. The risk of tuberculosis was higher in early 2000s, in males and in 40-59 age group. Metropolitan regions are important risk areas for the spread of tuberculosis. These findings could be used to plan control measures according to the characteristics of each region.