Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 22
Filter
1.
BMJ Open ; 14(5): e082381, 2024 May 08.
Article in English | MEDLINE | ID: mdl-38719283

ABSTRACT

INTRODUCTION: Wildfires and deforestation potentially have direct effects on multiple health outcomes as well as indirect consequences for climate change. Tropical rainforest areas are characterised by high rainfall, humidity and temperature, and they are predominantly found in low-income and middle-income countries. This study aims to synthesise the methods, data and health outcomes reported in scientific papers on wildfires and deforestation in these locations. METHODS AND ANALYSIS: We will carry out a scoping review according to the Joanna Briggs Institute's (JBI) manual for scoping reviews and the framework proposed by Arksey and O'Malley, and Levac et al. The search for articles was performed on 18 August 2023, in 16 electronic databases using Medical Subject Headings terms and adaptations for each database from database inception. The search for local studies will be complemented by the manual search in the list of references of the studies selected to compose this review. We screened studies written in English, French, Portuguese and Spanish. We included quantitative studies assessing any human disease outcome, hospitalisation and vital statistics in regions of tropical rainforest. We exclude qualitative studies and quantitative studies whose outcomes do not cover those of interest. The text screening was done by two independent reviewers. Subsequently, we will tabulate the data by the origin of the data source used, the methods and the main findings on health impacts of the extracted data. The results will provide descriptive statistics, along with visual representations in diagrams and tables, complemented by narrative summaries as detailed in the JBI guidelines. ETHICS AND DISSEMINATION: The study does not require an ethical review as it is meta-research and uses published, deidentified secondary data sources. The submission of results for publication in a peer-reviewed journal and presentation at scientific and policymakers' conferences is expected. STUDY REGISTRATION: Open Science Framework (https://osf.io/pnqc7/).


Subject(s)
Climate Change , Conservation of Natural Resources , Rainforest , Wildfires , Humans , Tropical Climate , Review Literature as Topic , Research Design
2.
Popul Health Metr ; 22(1): 9, 2024 May 27.
Article in English | MEDLINE | ID: mdl-38802870

ABSTRACT

BACKGROUND: Mortality rate estimation in small areas can be difficult due the low number of events/exposure (i.e. stochastic error). If the death records are not completed, it adds a systematic uncertainty on the mortality estimates. Previous studies in Brazil have combined demographic and statistical methods to partially overcome these issues. We estimated age- and sex-specific mortality rates for all 5,565 Brazilian municipalities in 2010 and forecasted probabilistic mortality rates and life expectancy between 2010 and 2030. METHODS: We used a combination of the Tool for Projecting Age-Specific Rates Using Linear Splines (TOPALS), Bayesian Model, Spatial Smoothing Model and an ad-hoc procedure to estimate age- and sex-specific mortality rates for all Brazilian municipalities for 2010. Then we adapted the Lee-Carter model to forecast mortality rates by age and sex in all municipalities between 2010 and 2030. RESULTS: The adjusted sex- and age-specific mortality rates for all Brazilian municipalities in 2010 reveal a distinct regional pattern, showcasing a decrease in life expectancy in less socioeconomically developed municipalities when compared to estimates without adjustments. The forecasted mortality rates indicate varying regional improvements, leading to a convergence in life expectancy at birth among small areas in Brazil. Consequently, a reduction in the variability of age at death across Brazil's municipalities was observed, with a persistent sex differential. CONCLUSION: Mortality rates at a small-area level were successfully estimated and forecasted, with associated uncertainty estimates also generated for future life tables. Our approach could be applied across countries with data quality issues to improve public policy planning.


Subject(s)
Bayes Theorem , Cities , Life Expectancy , Mortality , Humans , Brazil/epidemiology , Male , Female , Mortality/trends , Infant , Child, Preschool , Aged , Middle Aged , Adolescent , Adult , Child , Young Adult , Infant, Newborn , Aged, 80 and over , Sex Factors , Age Distribution , Age Factors , Sex Distribution , Forecasting
3.
Ethn Health ; 29(1): 46-61, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37642313

ABSTRACT

OBJECTIVES: There is limited evidence regarding the impact of race/racism and its intersection with socioeconomic status (SES) on breast and cervical cancer, the two most common female cancers globally. We investigated racial inequalities in breast and cervical cancer mortality and whether SES (education and household conditions) interacted with race/ethnicity. DESIGN: The 100 Million Brazilian Cohort data were linked to the Brazilian Mortality Database, 2004-2015 (n = 20,665,005 adult women). We analysed the association between self-reported race/ethnicity (White/'Parda'(Brown)/Black/Asian/Indigenous) and cancer mortality using Poisson regression, adjusting for age, calendar year, education, household conditions and area of residence. Additive and multiplicative interactions were assessed. RESULTS: Cervical cancer mortality rates were higher among Indigenous (adjusted Mortality rate ratio = 1.80, 95%CI 1.39-2.33), Asian (1.63, 1.20-2.22), 'Parda'(Brown) (1.27, 1.21-1.33) and Black (1.18, 1.09-1.28) women vs White women. Breast cancer mortality rates were higher among Black (1.10, 1.04-1.17) vs White women. Racial inequalities in cervical cancer mortality were larger among women of poor household conditions, and low education (P for multiplicative interaction <0.001, and 0.02, respectively). Compared to White women living in completely adequate (3-4) household conditions, the risk of cervical cancer mortality in Black women with 3-4, 1-2, and none adequate conditions was 1.10 (1.01-1.21), 1.48 (1.28-1.71), and 2.03 (1.56-2.63), respectively (Relative excess risk due to interaction-RERI = 0.78, 0.18-1.38). Among 'Parda'(Brown) women the risk was 1.18 (1.11-1.25), 1.68 (1.56-1.81), and 1.84 (1.63-2.08), respectively (RERI = 0.52, 0.16-0.87). Compared to high-educated White women, the risk in high-, middle- and low-educated Black women was 1.14 (0.83-1.55), 1.93 (1.57-2.38) and 2.75 (2.33-3.25), respectively (RERI = 0.36, -0.05-0.77). Among 'Parda'(Brown) women the risk was 1.09 (0.91-1.31), 1.99 (1.70-2.33) and 3.03 (2.61-3.52), respectively (RERI = 0.68, 0.48-0.88). No interactions were found for breast cancer. CONCLUSION: Low SES magnified racial inequalities in cervical cancer mortality. The intersection between race/ethnicity, SES and gender needs to be addressed to reduce racial health inequalities.


Subject(s)
Breast Neoplasms , Health Inequities , Uterine Cervical Neoplasms , Adult , Female , Humans , Brazil/epidemiology , Breast Neoplasms/mortality , Ethnicity , Social Class , Socioeconomic Factors , Uterine Cervical Neoplasms/mortality , Racial Groups
4.
BMJ Open ; 13(9): e073479, 2023 09 06.
Article in English | MEDLINE | ID: mdl-37673446

ABSTRACT

INTRODUCTION: There is a limited understanding of the early nutrition and pregnancy determinants of short-term and long-term maternal and child health in ethnically diverse and socioeconomically vulnerable populations within low-income and middle-income countries. This investigation programme aims to: (1) describe maternal weight trajectories throughout the life course; (2) describe child weight, height and body mass index (BMI) trajectories; (3) create and validate models to predict childhood obesity at 5 years of age; (4) estimate the effects of prepregnancy BMI, gestational weight gain (GWG) and maternal weight trajectories on adverse maternal and neonatal outcomes and child growth trajectories; (5) estimate the effects of prepregnancy BMI, GWG, maternal weight and interpregnancy BMI changes on maternal and child outcomes in the subsequent pregnancy; and (6) estimate the effects of maternal food consumption and infant feeding practices on child nutritional status and growth trajectories. METHODS AND ANALYSIS: Linked data from four different Brazilian databases will be used: the 100 Million Brazilian Cohort, the Live Births Information System, the Mortality Information System and the Food and Nutrition Surveillance System. To analyse trajectories, latent-growth, superimposition by translation and rotation and broken stick models will be used. To create prediction models for childhood obesity, machine learning techniques will be applied. For the association between the selected exposure and outcomes variables, generalised linear models will be considered. Directed acyclic graphs will be constructed to identify potential confounders for each analysis investigating potential causal relationships. ETHICS AND DISSEMINATION: This protocol was approved by the Research Ethics Committees of the authors' institutions. The linkage will be carried out in a secure environment. After the linkage, the data will be de-identified, and pre-authorised researchers will access the data set via a virtual private network connection. Results will be reported in open-access journals and disseminated to policymakers and the broader public.


Subject(s)
Body-Weight Trajectory , Pediatric Obesity , Child , Infant , Infant, Newborn , Female , Pregnancy , Humans , Pediatric Obesity/epidemiology , Brazil/epidemiology , Child Nutritional Physiological Phenomena , Family
5.
Article in English | MEDLINE | ID: mdl-37349106

ABSTRACT

INTRODUCTION: Housing-related factors can be predictors of health, including of diabetes outcomes. We analysed the association between subsidised housing residency and diabetes mortality among a large cohort of low-income adults in Brazil. RESEARCH DESIGN AND METHODS: A cohort of 9 961 271 low-income adults, observed from January 2010 to December 2015, was created from Brazilian administrative records of social programmes and death certificates. We analysed the association between subsidised housing residency and time to diabetes mortality using a Cox model with inverse probability of treatment weighting and regression adjustment. We assessed inequalities in this association by groups of municipality Human Development Index. Diabetes mortality included diabetes both as the underlying or a contributory cause of death. RESULTS: At baseline, the mean age of the cohort was 40.3 years (SD 15.6 years), with a majority of women (58.4%). During 29 238 920 person-years of follow-up, there were 18 775 deaths with diabetes as the underlying or a contributory cause. 340 683 participants (3.4% of the cohort) received subsidised housing. Subsidised housing residents had a higher hazard of diabetes mortality compared with non-residents (HR 1.17; 95% CI 1.05 to 1.31). The magnitude of this association was more pronounced among participants living in municipalities with lower Human Development Index (HR 1.30; 95% CI 1.04 to 1.62). CONCLUSIONS: Subsidised housing residents had a greater risk of diabetes mortality, particularly those living in low socioeconomic status municipalities. This finding suggests the need to intensify diabetes prevention and control actions and prompt treatment of the diabetes complications among subsidised housing residents, particularly among those living in low socioeconomic status municipalities.


Subject(s)
Diabetes Mellitus , Housing , Humans , Adult , Female , Brazil/epidemiology , Retrospective Studies , Diabetes Mellitus/epidemiology
6.
PLoS Med ; 20(1): e1004156, 2023 01.
Article in English | MEDLINE | ID: mdl-36630477

ABSTRACT

BACKGROUND: Brazil and Scotland have used mRNA boosters in their respective populations since September 2021, with Omicron's emergence accelerating their booster program. Despite this, both countries have reported substantial recent increases in Coronavirus Disease 2019 (COVID-19) cases. The duration of the protection conferred by the booster dose against symptomatic Omicron cases and severe outcomes is unclear. METHODS AND FINDINGS: Using a test-negative design, we analyzed national databases to estimate the vaccine effectiveness (VE) of a primary series (with ChAdOx1 or BNT162b2) plus an mRNA vaccine booster (with BNT162b2 or mRNA-1273) against symptomatic Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection and severe COVID-19 outcomes (hospitalization or death) during the period of Omicron dominance in Brazil and Scotland compared to unvaccinated individuals. Additional analyses included stratification by age group (18 to 49, 50 to 64, ≥65). All individuals aged 18 years or older who reported acute respiratory illness symptoms and tested for SARS-CoV-2 infection between January 1, 2022, and April 23, 2022, in Brazil and Scotland were eligible for the study. At 14 to 29 days after the mRNA booster, the VE against symptomatic SARS-CoV-2 infection of ChAdOx1 plus BNT162b2 booster was 51.6%, (95% confidence interval (CI): [51.0, 52.2], p < 0.001) in Brazil and 67.1% (95% CI [65.5, 68.5], p < 0.001) in Scotland. At ≥4 months, protection against symptomatic infection waned to 4.2% (95% CI [0.7, 7.6], p = 0.02) in Brazil and 37.4% (95% CI [33.8, 40.9], p < 0.001) in Scotland. VE against severe outcomes in Brazil was 93.5% (95% CI [93.0, 94.0], p < 0.001) at 14 to 29 days post-booster, decreasing to 82.3% (95% CI [79.7, 84.7], p < 0.001) and 98.3% (95% CI [87.3, 99.8], p < 0.001) to 77.8% (95% CI [51.4, 89.9], p < 0.001) in Scotland for the same periods. Similar results were obtained with the primary series of BNT162b2 plus homologous booster. Potential limitations of this study were that we assumed that all cases included in the analysis were due to the Omicron variant based on the period of dominance and the limited follow-up time since the booster dose. CONCLUSIONS: We observed that mRNA boosters after a primary vaccination course with either mRNA or viral-vector vaccines provided modest, short-lived protection against symptomatic infection with Omicron but substantial and more sustained protection against severe COVID-19 outcomes for at least 3 months.


Subject(s)
COVID-19 , Humans , COVID-19/epidemiology , COVID-19/prevention & control , SARS-CoV-2/genetics , Brazil/epidemiology , BNT162 Vaccine , Case-Control Studies , Scotland/epidemiology , RNA, Messenger
7.
Eur J Epidemiol ; 37(12): 1215-1224, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36333542

ABSTRACT

Linked administrative data offer a rich source of information that can be harnessed to describe patterns of disease, understand their causes and evaluate interventions. However, administrative data are primarily collected for operational reasons such as recording vital events for legal purposes, and planning, provision and monitoring of services. The processes involved in generating and linking administrative datasets may generate sources of bias that are often not adequately considered by researchers. We provide a framework describing these biases, drawing on our experiences of using the 100 Million Brazilian Cohort (100MCohort) which contains records of more than 131 million people whose families applied for social assistance between 2001 and 2018. Datasets for epidemiological research were derived by linking the 100MCohort to health-related databases such as the Mortality Information System and the Hospital Information System. Using the framework, we demonstrate how selection and misclassification biases may be introduced in three different stages: registering and recording of people's life events and use of services, linkage across administrative databases, and cleaning and coding of variables from derived datasets. Finally, we suggest eight recommendations which may reduce biases when analysing data from administrative sources.


Subject(s)
Medical Record Linkage , Humans , Bias , Epidemiologic Studies , Databases, Factual , Brazil/epidemiology
8.
Int J Epidemiol ; 51(6): 1847-1861, 2022 12 13.
Article in English | MEDLINE | ID: mdl-36172959

ABSTRACT

BACKGROUND: Cardiovascular disease (CVD) has a disproportionate effect on mortality among the poorest people. We assessed the impact on CVD and all-cause mortality of the world's largest conditional cash transfer, Brazil's Bolsa Família Programme (BFP). METHODS: We linked administrative data from the 100 Million Brazilian Cohort with BFP receipt and national mortality data. We followed individuals who applied for BFP between 1 January 2011 and 31 December 2015, until 31 December 2015. We used marginal structural models to estimate the effect of BFP on all-age and premature (30-69 years) CVD and all-cause mortality. We conducted stratified analyses by levels of material deprivation and access to healthcare. We checked the robustness of our findings by restricting the analysis to municipalities with better mortality data and by using alternative statistical methods. RESULTS: We studied 17 981 582 individuals, of whom 4 855 324 were aged 30-69 years. Three-quarters (76.2%) received BFP, with a mean follow-up post-award of 2.6 years. We detected 106 807 deaths by all causes, of which 60 893 were premature; and 23 389 CVD deaths, of which 15 292 were premature. BFP was associated with reductions in premature all-cause mortality [hazard ratio (HR) = 0.96, 95% CI = 0.94-0.98], premature CVD (HR = 0.96, 95% CI = 0.92-1.00) and all-age CVD (HR = 0.96, 95% CI = 0.93-1.00) but not all-age all-cause mortality (HR = 1.00, 95% CI = 0.98-1.02). In stratified and robustness analyses, BFP was consistently associated with mortality reductions for individuals living in the two most deprived quintiles. CONCLUSIONS: BFP appears to have a small to null effect on premature CVD and all-cause mortality in the short term; the long-term impact remains unknown.


Subject(s)
Cardiovascular Diseases , Poverty , Humans , Brazil/epidemiology
9.
PLoS One ; 17(5): e0268500, 2022.
Article in English | MEDLINE | ID: mdl-35604890

ABSTRACT

BACKGROUND: Conditional Cash Transfer Programs have been developed in Latin America in response to poverty and marked social inequalities on the continent. In Brazil, the Bolsa Familia Program (BFP) was implemented to alleviate poverty and improve living conditions, health, and education for socioeconomically vulnerable populations. However, the effect of this intervention on maternal and child health is not well understood. METHODS: We will evaluate the effect of BFP on maternal and child outcomes: 1. Birth weight; 2. Preterm birth; 3. Maternal mortality; and 4. Child growth. Dynamic retrospective cohort data from the 100 Million Brazilian Cohort (2001 to 2015) will be linked to three different databases: Live Birth Information System (2004 to 2015); Mortality Information System (2011 to 2015); and Food and Nutritional Surveillance System (2008 to 2017). The definition of exposure to the BFP varies according to the outcome studied. Those who never received the benefit until the outcome or until the end of the follow-up will be defined as not exposed. The effects of BFP on maternal and child outcomes will be estimated by a combination of propensity score-based methods and weighted logistic regressions. The analyses will be further stratified to reflect changes in the benefit entitlement before and after 2012. DISCUSSION: Harnessing a large linked administrative cohort allows us to assess the effect of the BFP on maternal and child health, while considering a wide range of explanatory and confounding variables.


Subject(s)
Child Health , Premature Birth , Brazil/epidemiology , Child , Female , Humans , Infant, Newborn , Poverty , Retrospective Studies
10.
Nat Med ; 28(4): 838-843, 2022 04.
Article in English | MEDLINE | ID: mdl-35140406

ABSTRACT

There is considerable interest in the waning of effectiveness of coronavirus disease 2019 (COVID-19) vaccines and vaccine effectiveness (VE) of booster doses. Using linked national Brazilian databases, we undertook a test-negative design study involving almost 14 million people (~16 million tests) to estimate VE of CoronaVac over time and VE of BNT162b2 booster vaccination against RT-PCR-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and severe COVID-19 outcomes (hospitalization or death). Compared with unvaccinated individuals, CoronaVac VE at 14-30 d after the second dose was 55.0% (95% confidence interval (CI): 54.3-55.7) against confirmed infection and 82.1% (95% CI: 81.4-82.8) against severe outcomes. VE decreased to 34.7% (95% CI: 33.1-36.2) against infection and 72.5% (95% CI: 70.9-74.0) against severe outcomes over 180 d after the second dose. A BNT162b2 booster, 6 months after the second dose of CoronaVac, improved VE against infection to 92.7% (95% CI: 91.0-94.0) and VE against severe outcomes to 97.3% (95% CI: 96.1-98.1) 14-30 d after the booster. Compared with younger age groups, individuals 80 years of age or older had lower protection after the second dose but similar protection after the booster. Our findings support a BNT162b2 booster vaccine dose after two doses of CoronaVac, particularly for the elderly.


Subject(s)
BNT162 Vaccine , COVID-19 , Aged , Aged, 80 and over , Brazil/epidemiology , COVID-19/epidemiology , COVID-19/prevention & control , COVID-19 Vaccines , Humans , SARS-CoV-2 , Vaccine Efficacy
11.
Lancet ; 399(10319): 25-35, 2022 01 01.
Article in English | MEDLINE | ID: mdl-34942103

ABSTRACT

BACKGROUND: Reports suggest that COVID-19 vaccine effectiveness is decreasing, but whether this reflects waning or new SARS-CoV-2 variants-especially delta (B.1.617.2)-is unclear. We investigated the association between time since two doses of ChAdOx1 nCoV-19 vaccine and risk of severe COVID-19 outcomes in Scotland (where delta was dominant), with comparative analyses in Brazil (where delta was uncommon). METHODS: In this retrospective, population-based cohort study in Brazil and Scotland, we linked national databases from the EAVE II study in Scotland; and the COVID-19 Vaccination Campaign, Acute Respiratory Infection Suspected Cases, and Severe Acute Respiratory Infection/Illness datasets in Brazil) for vaccination, laboratory testing, clinical, and mortality data. We defined cohorts of adults (aged ≥18 years) who received two doses of ChAdOx1 nCoV-19 and compared rates of severe COVID-19 outcomes (ie, COVID-19 hospital admission or death) across fortnightly periods, relative to 2-3 weeks after the second dose. Entry to the Scotland cohort started from May 19, 2021, and entry to the Brazil cohort started from Jan 18, 2021. Follow-up in both cohorts was until Oct 25, 2021. Poisson regression was used to estimate rate ratios (RRs) and vaccine effectiveness, with 95% CIs. FINDINGS: 1 972 454 adults received two doses of ChAdOx1 nCoV-19 in Scotland and 42 558 839 in Brazil, with longer follow-up in Scotland because two-dose vaccination began earlier in Scotland than in Brazil. In Scotland, RRs for severe COVID-19 increased to 2·01 (95% CI 1·54-2·62) at 10-11 weeks, 3·01 (2·26-3·99) at 14-15 weeks, and 5·43 (4·00-7·38) at 18-19 weeks after the second dose. The pattern of results was similar in Brazil, with RRs of 2·29 (2·01-2·61) at 10-11 weeks, 3·10 (2·63-3·64) at 14-15 weeks, and 4·71 (3·83-5·78) at 18-19 weeks after the second dose. In Scotland, vaccine effectiveness decreased from 83·7% (95% CI 79·7-87·0) at 2-3 weeks, to 75·9% (72·9-78·6) at 14-15 weeks, and 63·7% (59·6-67·4) at 18-19 weeks after the second dose. In Brazil, vaccine effectiveness decreased from 86·4% (85·4-87·3) at 2-3 weeks, to 59·7% (54·6-64·2) at 14-15 weeks, and 42·2% (32·4-50·6) at 18-19 weeks. INTERPRETATION: We found waning vaccine protection of ChAdOx1 nCoV-19 against COVID-19 hospital admissions and deaths in both Scotland and Brazil, this becoming evident within three months of the second vaccine dose. Consideration needs to be given to providing booster vaccine doses for people who have received ChAdOx1 nCoV-19. FUNDING: UK Research and Innovation (Medical Research Council), Scottish Government, Research and Innovation Industrial Strategy Challenge Fund, Health Data Research UK, Fiocruz, Fazer o Bem Faz Bem Programme; Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro. TRANSLATION: For the Portuguese translation of the abstract see Supplementary Materials section.


Subject(s)
COVID-19 Vaccines/administration & dosage , COVID-19/mortality , COVID-19/prevention & control , ChAdOx1 nCoV-19/administration & dosage , Vaccine Efficacy , Adolescent , Adult , Aged , Aged, 80 and over , Brazil , Female , Hospitalization , Humans , Immunization, Secondary , Male , Middle Aged , Retrospective Studies , SARS-CoV-2/immunology , Scotland/epidemiology , Time Factors , Vaccination
12.
Rev Bras Epidemiol ; 24(suppl 1): e210004, 2021.
Article in English, Portuguese | MEDLINE | ID: mdl-33886877

ABSTRACT

OBJECTIVE: To propose a method for improving mortality estimates from noncommunicable diseases (NCD), including the redistribution of garbage codes in Brazilian municipalities. METHODS: Brazilian Mortality Information System (MIS) was used as a data source to estimate age standardized mortality rates, before and after correction, for NCD (cardiovascular, chronic respiratory, diabetes, and neoplasms). The treatment for the correction of data addressed missing data, under-registration, and redistribution of garbage codes (GCs). Three-year periods 2010-2012 and 2015-2017, and the Bayesian method were used to estimate mortality rates, reducing the effect of fluctuation caused by small numbers at the municipal level. RESULTS: GCs redistribution step showed greater weight in corrections, about 40% in 2000 and roughly 20% as from 2007, with stabilization starting in this year. Throughout the historical series, the quality of information on causes of death has improved in Brazil, with heterogeneous results being observed among municipalities. CONCLUSION: Methodological studies that propose correction and improvement of the MIS are essential for monitoring mortality rates due to NCD at regional levels. The methodological proposal applied, for the first time in real data from Brazilian municipalities, is challenging and deserves further improvements. Improving the quality of the data is essential in order to build more accurate estimates based on the raw data from the SIM.


Subject(s)
Noncommunicable Diseases , Bayes Theorem , Brazil/epidemiology , Cause of Death , Chronic Disease , Cities , Humans , Mortality
13.
BMJ Open ; 11(3): e041722, 2021 03 01.
Article in English | MEDLINE | ID: mdl-33649053

ABSTRACT

INTRODUCTION: Social housing programmes have been shown to influence health, but their effects on cardiovascular mortality and incidence of infectious diseases, such as leprosy and tuberculosis, are unknown. We will use individual administrative data to evaluate the effect of the Brazilian housing programme Minha Casa Minha Vida (MCMV) on cardiovascular disease (CVD) mortality and incidence of leprosy and tuberculosis. METHODS AND ANALYSIS: We will link the baseline of the 100 Million Brazilian Cohort (2001-2015), which includes information on socioeconomic and demographic variables, to the MCMV (2009-2015), CVD mortality (2007-2015), leprosy (2007-2015) and tuberculosis (2007-2015) registries. We will define our exposed population as individuals who signed the contract to receive a house from MCMV, and our non-exposed group will be comparable individuals within the cohort who have not signed a contract for a house at that time. We will estimate the effect of MCMV on health outcomes using different propensity score approaches to control for observed confounders. Follow-up time of individuals will begin at the date of exposure ascertainment and will end at the time a specific outcome occurs, date of death or end of follow-up (31 December 2015). In addition, we will conduct stratified analyses by the follow-up time, age group, race/ethnicity, gender and socioeconomic position. ETHICS AND DISSEMINATION: The study was approved by the ethic committees from Instituto Gonçalo Muniz-Oswaldo Cruz Foundation and University of Glasgow Medical, Veterinary and Life Sciences College. Data analysis will be carried out using an anonymised dataset, accessed by researchers in a secure computational environment according to the Centre for Integration of Data and Health Knowledge procedures. Study findings will be published in high quality peer-reviewed research journals and will also be disseminated to policy makers through stakeholder events and policy briefs.


Subject(s)
Cardiovascular Diseases , Housing , Brazil/epidemiology , Cardiovascular Diseases/epidemiology , Cohort Studies , Humans , Population Groups
14.
Rev. bras. epidemiol ; Rev. bras. epidemiol;24(supl.1): e210004, 2021. graf
Article in English, Portuguese | LILACS | ID: biblio-1288506

ABSTRACT

ABSTRACT: Objective: To propose a method for improving mortality estimates from noncommunicable diseases (NCD), including the redistribution of garbage codes in Brazilian municipalities. Methods: Brazilian Mortality Information System (MIS) was used as a data source to estimate age standardized mortality rates, before and after correction, for NCD (cardiovascular, chronic respiratory, diabetes, and neoplasms). The treatment for the correction of data addressed missing data, under-registration, and redistribution of garbage codes (GCs). Three-year periods 2010-2012 and 2015-2017, and the Bayesian method were used to estimate mortality rates, reducing the effect of fluctuation caused by small numbers at the municipal level. Results: GCs redistribution step showed greater weight in corrections, about 40% in 2000 and roughly 20% as from 2007, with stabilization starting in this year. Throughout the historical series, the quality of information on causes of death has improved in Brazil, with heterogeneous results being observed among municipalities. Conclusion: Methodological studies that propose correction and improvement of the MIS are essential for monitoring mortality rates due to NCD at regional levels. The methodological proposal applied, for the first time in real data from Brazilian municipalities, is challenging and deserves further improvements. Improving the quality of the data is essential in order to build more accurate estimates based on the raw data from the SIM.


RESUMO: Objetivo: Propor método para melhoria das estimativas de mortalidade por doenças crônicas não transmissíveis, incluindo a redistribuição de causas garbage nos municípios brasileiros. Métodos: O Sistema de Informações sobre Mortalidade foi utilizado como fonte de dados para estimar as taxas padronizadas por idade, antes e depois da correção de dados, para as doenças crônicas não transmissíveis (cardiovasculares, respiratórias crônicas, diabetes e neoplasias). O tratamento para correção dos dados abordou dados faltantes, sub-registro e redistribuição de causas garbage. Foram utilizados os triênios 2010-2012 e 2015-2017 e o método bayesiano para estimar as taxas de mortalidade, diminuindo-se o efeito da flutuação provocada pelos pequenos números no nível municipal. Resultados: A etapa de redistribuição causas garbage mostrou maior peso nas correções: cerca de 40% em 2000 e aproximadamente 20% a partir de 2007, com estabilização neste ano. Ao longo da série histórica, a qualidade da informação sobre causas de morte melhorou no Brasil, sendo vistos resultados heterogêneos nos municípios. Observaram-se clusters com as maiores proporções de correção nas regiões Nordeste e Norte. O diabetes foi a causa com maior proporção de acréscimo (mais de 40%, em 2000). Conclusão: Estudos metodológicos que propõem correção e melhoria do Sistema de Informação sobre Mortalidade são essenciais para o monitoramento das taxas de mortalidade por doenças crônicas não transmissíveis em níveis regionais. A proposta metodológica aplicada, pela primeira vez em dados reais de municípios brasileiros, é desafiadora e merece aprimoramentos. Apesar da melhora nos dados, o método utilizado neste estudo para tratamento dos dados brutos mostrou grande impacto nas estimativas finais.


Subject(s)
Humans , Noncommunicable Diseases , Brazil/epidemiology , Chronic Disease , Mortality , Bayes Theorem , Cause of Death , Cities
15.
BMJ Open ; 10(11): e039658, 2020 11 20.
Article in English | MEDLINE | ID: mdl-33444195

ABSTRACT

INTRODUCTION: Brazil's Bolsa Familia Program (BFP) is the world's largest conditional cash transfer scheme. We shall use a large cohort of applicants for different social programmes to evaluate the effect of BFP receipt on premature all-cause and cardiovascular mortality. METHODS AND ANALYSIS: We will identify BFP recipients and non-recipients among new applicants from 2004 to 2015 in the 100 Million Brazilian Cohort, a database of 114 million individuals containing sociodemographic and mortality information of applicants to any Brazilian social programme. For individuals applying from 2011, when we have better recorded income data, we shall compare premature (age 30-69) cardiovascular and all-cause mortality among BFP recipients and non-recipients using regression discontinuity design (RDD) with household monthly per capita income as the forcing variable. Effects will be estimated using survival models accounting for individuals follow-up. To test the sensitivity of our findings, we will estimate models with different bandwidths, include potential confounders as covariates in the survival models, and restrict our data to locations with the most reliable data. In addition, we will estimate the effect of BFP on studied outcomes using propensity score risk-set matching, separately for individuals that applied ≤2010 and >2011, allowing comparability with RDD. Analyses will be stratified by geographical region, gender, race/ethnicity and socioeconomic position. We will investigate differential impacts of BFP and the presence of effect modification for a combination of characteristics, including gender and race/ethnicity. ETHICS AND DISSEMINATION: The study was approved by the ethics committees of Oswaldo Cruz Foundation and the University of Glasgow College of Medicine and Veterinary Life Sciences. The deidentified dataset will be provided to researchers, and data analysis will be performed in a safe computational environment without internet access. Study findings will be published in high quality peer-reviewed research articles. The published results will be disseminated in the social media and to policy-makers.


Subject(s)
Income , Adult , Aged , Brazil/epidemiology , Cardiovascular Diseases , Cohort Studies , Female , Humans , Male , Middle Aged , Premature Birth , Propensity Score
16.
BMJ Glob Health ; 4(5): e001661, 2019.
Article in English | MEDLINE | ID: mdl-31565412

ABSTRACT

In the recent decades, Brazil has outperformed comparable countries in its progress toward meeting the Millennium Development Goals. Many of these improvements have been driven by investments in health and social policies. In this article, we aim to identify potential impacts of austerity policies in Brazil on the chances of achieving the sustainable development goals (SDGs) and its consequences for population health. Austerity's anticipated impacts are assessed by analysing the change in federal spending on different budget programmes from 2014 to 2017. We collected budget data made publicly available by the Senate. Among the selected 19 programmes, only 4 had their committed budgets increased, in real terms, between 2014 and 2017. The total amount of extra money committed to these four programmes in 2017, above that committed in 2014, was small (BR$9.7 billion). Of the 15 programmes that had budget cuts in the period from 2014 to 2017, the total decrease amounted to BR$60.2 billion (US$15.3 billion). In addition to the overall large budget reduction, it is noteworthy that the largest proportional reductions were in programmes targeted at more vulnerable populations. In conclusion, it seems clear that the current austerity policies in Brazil will probably damage the population's health and increase inequities, and that the possibility of meeting SDG targets is lower in 2018 than it was in 2015.

17.
BMJ Glob Health ; 4(5): [7], 6 September 2019.
Article in English | LILACS, BDS | ID: biblio-1022085

ABSTRACT

In the recent decades, Brazil has outperformed comparable countries in its progress toward meeting the Millennium Development Goals. Many of these improvements have been driven by investments in health and social policies. In this article, we aim to identify potential impacts of austerity policies in Brazil on the chances of achieving the sustainable development goals (SDGs) and its consequences for population health. Austerity's anticipated impacts are assessed by analysing the change in federal spending on different budget programmes from 2014 to 2017. We collected budget data made publicly available by the Senate. Among the selected 19 programmes, only 4 had their committed budgets increased, in real terms, between 2014 and 2017. The total amount of extra money committed to these four programmes in 2017, above that committed in 2014, was small (BR$9.7 billion). Of the 15 programmes that had budget cuts in the period from 2014 to 2017, the total decrease amounted to BR$60.2 billion (US$15.3 billion). In addition to the overall large budget reduction, it is noteworthy that the largest proportional reductions were in programmes targeted at more vulnerable populations. In conclusion, it seems clear that the current austerity policies in Brazil will probably damage the population's health and increase inequities, and that the possibility of meeting SDG targets is lower in 2018 than it was in 2015.


Subject(s)
Humans , Brazil , Health Status Disparities , Health Policy , Vulnerable Populations , Sustainable Development , Analysis of the Budgetary Impact of Therapeutic Advances
18.
Cien Saude Colet ; 23(10): 3115-3122, 2018 Oct.
Article in Portuguese, English | MEDLINE | ID: mdl-30365830

ABSTRACT

Given the Constitutional Amendment 95 and the economic crisis, we discussed the possible effects of austerity measures on the achievement of the goals established for the control of chronic noncommunicable diseases (NCDs) in the country. The trends of NCDs and risk factors were analyzed, according to data from epidemiological surveys and mortality data from the Global Burden of Disease study. The resultsindicate a trend of stability in mortality rates by NCD in 2015 and 2016. Brazilians with low schooling, in general, have a higher prevalence of risk factors and a lower prevalence of protective factors. In the 2015-2017 period, previously favorable trends reversed for indicators such as fruit and vegetable consumption and physical activity, tobacco trends stabilized, and alcohol intake increased. In conclusion, should these trends be maintained, it is unlikely that Brazil will achieve the goals previously agreed upon with the World Health Organization and the United Nations to curb NCDs and their risk factors.


Tendo em vista a Emenda Constitucional 95 e a crise econômica, são discutidos os possíveis efeitos que as medidas de austeridade podem ter no cumprimento das metas estabelecidas para o controle das doenças crônicas não transmissíveis (DCNT) no Brasil. As tendências de DCNT e os fatores de risco foram analisadas, de acordo com os dados de levantamentos epidemiológicos e os de mortalidade do estudo Global Burden of Disease. Os resultados indicam uma tendência de estabilidade nas taxas de mortalidade por DCNT em 2015 e 2016. Os brasileiros com baixa escolaridade, em geral, apresentam maior prevalência de fatores de risco e menor de fatores de proteção. Entre 2015 e 2017, tendências anteriormente favoráveis foram revertidas para indicadores como consumo de frutas e vegetais, atividade física, estabilização das taxas de uso de tabaco e aumento do consumo de álcool. Conclui-se que, se tais tendências forem mantidas, o Brasil poderá não cumprir as metas previamente acordadas em conjunto com a Organização Mundial de Saúde e as Nações Unidas para reduzir as DCNT e seus fatores de risco .


Subject(s)
Cost of Illness , Noncommunicable Diseases/prevention & control , Sustainable Development , Alcohol Drinking/epidemiology , Brazil/epidemiology , Chronic Disease , Educational Status , Exercise , Feeding Behavior , Goals , Humans , Noncommunicable Diseases/economics , Noncommunicable Diseases/epidemiology , Prevalence , Protective Factors , Risk Factors , Tobacco Use/epidemiology
19.
Rev Saude Publica ; 52: 83, 2018 Sep 03.
Article in English | MEDLINE | ID: mdl-30183845

ABSTRACT

OBJECTIVE: To describe and assess currently used area-based measures of deprivation in Brazil for health research, to the purpose of informing the development of a future small area deprivation index. METHODS: We searched five electronic databases and seven websites of Brazilian research institutions and governmental agencies. Inclusion criteria were: studies proposing measures of deprivation for small areas (i.e., finer geography than country-level) in Brazil, published in English, Portuguese or Spanish. After data-extraction, results were tabulated according to the area level the deprivation measure was created for and to the dimensions of deprivation or poverty included in the measures. A narrative synthesis approach was used to summarize the measures available, highlighting their utility for public health research. RESULTS: A total of 7,199 records were retrieved, 126 full-text articles were assessed after inclusion criteria and a final list of 30 articles was selected. No small-area deprivation measures that have been applied to the whole of Brazil were found. Existing measures were mainly used to study infectious and parasitic diseases. Few studies used the measures to assess inequalities in mortality and no studies used the deprivation measure to evaluate the impact of social programs. CONCLUSIONS: No up-to-date small area-based deprivation measure in Brazil covers the whole country. There is a need to develop such an index for Brazil to measure and monitor inequalities in health and mortality, particularly to assess progress in Brazil against the Sustainable Development Goal targets for different health outcomes, showing progress by socioeconomic groups.


Subject(s)
Censuses , Poverty/statistics & numerical data , Socioeconomic Factors , Brazil , Humans
20.
Ciênc. Saúde Colet. (Impr.) ; Ciênc. Saúde Colet. (Impr.);23(10): 3115-3122, Out. 2018. tab, graf
Article in Portuguese | LILACS | ID: biblio-974694

ABSTRACT

Resumo Tendo em vista a Emenda Constitucional 95 e a crise econômica, são discutidos os possíveis efeitos que as medidas de austeridade podem ter no cumprimento das metas estabelecidas para o controle das doenças crônicas não transmissíveis (DCNT) no Brasil. As tendências de DCNT e os fatores de risco foram analisadas, de acordo com os dados de levantamentos epidemiológicos e os de mortalidade do estudo Global Burden of Disease. Os resultados indicam uma tendência de estabilidade nas taxas de mortalidade por DCNT em 2015 e 2016. Os brasileiros com baixa escolaridade, em geral, apresentam maior prevalência de fatores de risco e menor de fatores de proteção. Entre 2015 e 2017, tendências anteriormente favoráveis foram revertidas para indicadores como consumo de frutas e vegetais, atividade física, estabilização das taxas de uso de tabaco e aumento do consumo de álcool. Conclui-se que, se tais tendências forem mantidas, o Brasil poderá não cumprir as metas previamente acordadas em conjunto com a Organização Mundial de Saúde e as Nações Unidas para reduzir as DCNT e seus fatores de risco .


Abstract Given the Constitutional Amendment 95 and the economic crisis, we discussed the possible effects of austerity measures on the achievement of the goals established for the control of chronic noncommunicable diseases (NCDs) in the country. The trends of NCDs and risk factors were analyzed, according to data from epidemiological surveys and mortality data from the Global Burden of Disease study. The resultsindicate a trend of stability in mortality rates by NCD in 2015 and 2016. Brazilians with low schooling, in general, have a higher prevalence of risk factors and a lower prevalence of protective factors. In the 2015-2017 period, previously favorable trends reversed for indicators such as fruit and vegetable consumption and physical activity, tobacco trends stabilized, and alcohol intake increased. In conclusion, should these trends be maintained, it is unlikely that Brazil will achieve the goals previously agreed upon with the World Health Organization and the United Nations to curb NCDs and their risk factors.


Subject(s)
Humans , Cost of Illness , Noncommunicable Diseases/prevention & control , Sustainable Development , Brazil/epidemiology , Alcohol Drinking/epidemiology , Exercise , Chronic Disease , Prevalence , Risk Factors , Educational Status , Feeding Behavior , Tobacco Use/epidemiology , Protective Factors , Noncommunicable Diseases/economics , Noncommunicable Diseases/epidemiology , Goals
SELECTION OF CITATIONS
SEARCH DETAIL