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1.
Rev Saude Publica ; 53: 106, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31800907

RESUMO

BACKGROUND: Although the prognosis of differentiated thyroid carcinoma (DTC) therapy is considered excellent over time, some cases have a poorer prognosis and evolve into death. OBJECTIVE: This study aimed to estimate the 5-year specific survival and to identify prognosis factors in a cohort of DTC adult subjects. METHODS: Survival probability was estimated by Kaplan-Meier's method in a retrospective hospital-based cohort study. Comparisons were made by log-rank test. Prognosis factors were identified using Cox risk modeling and crude and adjusted Hazard Ratio measures were obtained. Two models were estimated, considering age grouping of the 7th and 8th editions of TNM. RESULTS: Specific 5-year survival in the cohort was 98.5% (95%CI: 94.2 - 97.5). Considering TNM 7th edition, the risk estimates were 9.88 (95%CI: 1.67 - 58.33) for age group ≥ 55 years, 18.87 (95%CI: 7.38 - 48.29) for individuals with distant metastasis, 6.36 (95%CI: 2.26 - 17.91) for patients who underwent lymphadenectomy and 0.16 (95%CI: 0.06 - 0.43) for those who received radioiodine therapy. For TNM 8th edition, the risk estimates were 10.12 (95%CI: 2.05 - 50.09) for age group ≥ 55 years, 12.43 (95%CI: 4.58 - 33.77) for individuals with distant metastasis, 5.06 (95%CI: 1.82 - 14.05) for patients who underwent lymphadenectomy and 0.19 (95%CI: 0.07 - 0.51) for those who received radioiodine therapy. CONCLUSIONS: This cohort had a very high survival over a 5-year period. The prognosis was negatively influenced by age, distant metastasis and lymphadenectomy, whereas radioiodine therapy was found to be protective.


Assuntos
Carcinoma/mortalidade , Encaminhamento e Consulta/estatística & dados numéricos , Neoplasias da Glândula Tireoide/mortalidade , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Brasil/epidemiologia , Carcinoma/patologia , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Neoplasias da Glândula Tireoide/patologia , Fatores de Tempo , Carga Tumoral , Adulto Jovem
2.
Cien Saude Colet ; 24(6): 2325-2340, 2019 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-31269189

RESUMO

This study sought to investigate the association of exposure to organochlorine (OC) and non-persistent pesticides with hematological parameters in an agricultural population in Southern Brazil. A cross-sectional study was conducted with a random sample of 275 farm workers and their families in Farroupilha-RS. A questionnaire was used to collect information on sociodemographic and lifestyle factors, duration, frequency and type of pesticide used, among others. Blood samples were collected and analyzed for serum concentration of 24 OC pesticides and hematological parameters. Associations were explored through linear regression, controlling for confounders. Lifetime use of chemical classes other than organophosphates and dithiocarbamates were associated with decreased number of lymphocytes, while subjects sampled in the high pesticide use season showed higher number of erythrocytes and hemoglobin level. Detectable serum levels of many OC pesticides were associated with lower counts of white blood cells, particularly eosinophils. Although mostly null associations were observed between pesticide use and hematological parameters, findings may suggest that OC pesticides could lead to hematological alterations among agricultural workers.


Assuntos
Doenças dos Trabalhadores Agrícolas/epidemiologia , Hidrocarbonetos Clorados/sangue , Exposição Ocupacional/efeitos adversos , Praguicidas/sangue , Adolescente , Adulto , Doenças dos Trabalhadores Agrícolas/sangue , Contagem de Células Sanguíneas , Brasil/epidemiologia , Estudos Transversais , Fazendeiros , Fazendas , Feminino , Humanos , Hidrocarbonetos Clorados/toxicidade , Masculino , Pessoa de Meia-Idade , Praguicidas/toxicidade , Adulto Jovem
3.
Ciênc. Saúde Colet ; 24(6): 2325-2340, jun. 2019. tab
Artigo em Inglês | LILACS-Express | ID: biblio-1011809

RESUMO

Abstract This study sought to investigate the association of exposure to organochlorine (OC) and non-persistent pesticides with hematological parameters in an agricultural population in Southern Brazil. A cross-sectional study was conducted with a random sample of 275 farm workers and their families in Farroupilha-RS. A questionnaire was used to collect information on sociodemographic and lifestyle factors, duration, frequency and type of pesticide used, among others. Blood samples were collected and analyzed for serum concentration of 24 OC pesticides and hematological parameters. Associations were explored through linear regression, controlling for confounders. Lifetime use of chemical classes other than organophosphates and dithiocarbamates were associated with decreased number of lymphocytes, while subjects sampled in the high pesticide use season showed higher number of erythrocytes and hemoglobin level. Detectable serum levels of many OC pesticides were associated with lower counts of white blood cells, particularly eosinophils. Although mostly null associations were observed between pesticide use and hematological parameters, findings may suggest that OC pesticides could lead to hematological alterations among agricultural workers.


Resumo O objetivo deste estudo foi investigar a associação entre a exposição a organoclorados (OC) e agrotóxicos não persistentes e os parâmetros hematológicos em uma população agrícola de Farroupilha-RS. Foi utilizado um questionário para coletar informações sobre fatores sociodemográficos e de estilo de vida, duração, frequência e tipo de pesticidas utilizados, entre outros. Amostras sanguíneas foram coletadas e analisadas quanto a concentração sérica de 24 pesticidas OC e parâmetros hematológicos. As associações foram exploradas através de regressão linear, controlando por confundidores. O uso cumulativo de classes químicas diferentes de organofosforados e ditiocarbamatos associou-se com diminuição do número de linfócitos enquanto indivíduos que tiveram suas coletas sanguíneas realizadas na estação de maior uso de agrotóxicos tinham contagem de eritrócitos e hemoglobina maiores. Níveis séricos de diversos pesticidas organoclorados foram associados com contagens mais baixas de células brancas do sangue, particularmente eosinófilos. Embora as associações com o uso de agrotóxicos tenham sido, em geral, nulas, os resultados podem sugerir que os pesticidas OCs poderiam levar a alterações hematológicas entre os trabalhadores agrícolas.

4.
Cad Saude Publica ; 35(5): e00143818, 2019 05 23.
Artigo em Português | MEDLINE | ID: mdl-31141029

RESUMO

The study aimed to estimate cancer mortality among indigenous peoples in Acre State, Brazil. This was a descriptive observational study based on the nominal bank of the Brazilian Mortality Information System for the period from January 1st, 2000, to December 31st, 2012. The study analyzed the distribution death frequencies by sex and age. Standardized mortality ratio (SMR) was calculated taking Goiânia (Goiás State), Acre State, and the North Region of Brazil as the references. A total of 81 deaths were identified, the majority in men (59.3%) and in individuals over 70 years of age. The five main sites in men were stomach, liver, colon and rectum, leukemia, and prostate. The five main sites in women were uterine cervix, stomach, liver, leukemia, and uterus. In indigenous men there was an excess of deaths from stomach cancer compared to the populations of Goiânia (SMR = 2.72; 2.58-2.87), Acre State (SMR = 2.05; 1.94-2.16) and North region (SMR = 3.10; 2.93-3.27). The same was observed for deaths from hepatic cell carcinomas referenced against Goiânia (SMR = 3.89; 3.66-4.14), Acre State (SMR = 1.79; 1.68-1.91), and the North of Brazil (SMR = 4.04; 3.77-4.30). Among indigenous women, there was an excess of cervical cancer in comparison to Goiânia (SMR = 4.67; 4.41-4.93), Acre State (SMR = 2.12; 2.00-2.24), and the North (SMR = 2.60; 2.45-2.75). The estimates show that preventable neoplasms such as cervical cancer and those linked to underdevelopment, such as stomach and liver cancer, account for 49.4% of deaths among indigenous peoples. Compared to the reference population, mortality from liver, stomach, and colorectal cancer and leukemias was more than twice as high in indigenous men; among indigenous women, cervical, stomach, and liver cancer and leukemias were 30% higher.

5.
Asian Pac J Cancer Prev ; 20(2): 469-478, 2019 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-30803209

RESUMO

Objective: Evaluate the beliefs about the risk factors for breast cancer in a population of women from the western Amazon and determine the factors associated with the higher belief scores presented by this population. Methods: A population-based cross-sectional study included 478 women aged >40 years residing in Rio Branco, Acre, Brazil. An American Cancer Society questionnaire was applied to assess the knowledge, attitudes, and beliefs about breast cancer. Results: The main beliefs about the risk factors for breast cancer were breast trauma (95%), use of underwire bra (58.5%), and a high number of sexual partners (55.5%). Women from younger age groups presented higher belief scores (Bcoefficient: ­0.04, 95% CI: ­0.07; ­0.01) than those of women from older age groups. A strong association was noted between high knowledge scores of risk factors and signs/symptoms of the disease and high belief scores in the study group (Bcoefficient:0.33;95%CI:0.28;0.38). Conclusion: The results indicate the existence of important beliefs related to the risk factors for breast cancer. Women from younger age groups, women who have seen a gynecologist in the past 2 years, and women who had more knowledge about the risk factors and signs and symptoms of breast cancer had higher belief scores.


Assuntos
Neoplasias da Mama/psicologia , Autoexame de Mama/psicologia , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Mamografia/psicologia , Adulto , Idoso , Brasil/epidemiologia , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Prognóstico , Inquéritos e Questionários
6.
Cad. Saúde Pública (Online) ; 35(5): e00143818, 2019. tab
Artigo em Português | LILACS-Express | ID: biblio-1001663

RESUMO

O objetivo do estudo foi estimar a mortalidade por câncer em povos indígenas no Estado do Acre, Brasil. Trata-se de estudo observacional descritivo, com base no banco nominal do SIM (Sistema de Informações sobre Mortalidade), referente ao período de 1º de janeiro de 2000 a 31 de dezembro de 2012. Foi analisada a distribuição de frequência de óbitos, por sexo e faixa etária, e calculada a RMP (razão de mortalidade padronizada), tendo como referência Goiânia (Goiás), Acre e Região Norte. Foram identificados 81 óbitos, a maioria de homens (59,3%) e acima de 70 anos. As cinco principais localizações em homens foram estômago, fígado, cólon e reto, leucemia e próstata. Nas mulheres, câncer cervical, estômago, fígado, leucemia e útero. Nos homens indígenas houve excesso de óbitos por câncer de estômago quando comparados às populações de Goiânia (RMP = 2,72; 2,58-2,87), Acre (RMP = 2,05; 1,94-2,16) e Região Norte (RMP = 3,10; 2,93-3,27). O mesmo foi observado para óbitos por hepatocarcinomas, tendo por referência Goiânia (RMP = 3,89; 3,66-4,14), Acre (RMP = 1,79; 1,68-1,91) e Região Norte (RMP = 4,04; 3,77-4,30). Dentre as mulheres indígenas, destaca-se o excesso de câncer cervical em relação à Goiânia (RMP = 4,67; 4,41-4,93), Acre (RMP = 2,12; 2,00-2,24) e Região Norte (RMP = 2,60; 2,45-2,75). As estimativas apontam que neoplasias passíveis de prevenção, como câncer cervical, e ligadas ao subdesenvolvimento, como estômago e fígado, corresponderam a cerca de 49,4% dos óbitos entre indígenas. Comparados à população de referência, a mortalidade por câncer de fígado, estômago, colorretal e leucemias foi maior que o dobro entre os homens indígenas; por câncer cervical, estômago, fígado e leucemias esteve acima de 30% entre as mulheres indígenas.


The study aimed to estimate cancer mortality among indigenous peoples in Acre State, Brazil. This was a descriptive observational study based on the nominal bank of the Brazilian Mortality Information System for the period from January 1st, 2000, to December 31st, 2012. The study analyzed the distribution death frequencies by sex and age. Standardized mortality ratio (SMR) was calculated taking Goiânia (Goiás State), Acre State, and the North Region of Brazil as the references. A total of 81 deaths were identified, the majority in men (59.3%) and in individuals over 70 years of age. The five main sites in men were stomach, liver, colon and rectum, leukemia, and prostate. The five main sites in women were uterine cervix, stomach, liver, leukemia, and uterus. In indigenous men there was an excess of deaths from stomach cancer compared to the populations of Goiânia (SMR = 2.72; 2.58-2.87), Acre State (SMR = 2.05; 1.94-2.16) and North region (SMR = 3.10; 2.93-3.27). The same was observed for deaths from hepatic cell carcinomas referenced against Goiânia (SMR = 3.89; 3.66-4.14), Acre State (SMR = 1.79; 1.68-1.91), and the North of Brazil (SMR = 4.04; 3.77-4.30). Among indigenous women, there was an excess of cervical cancer in comparison to Goiânia (SMR = 4.67; 4.41-4.93), Acre State (SMR = 2.12; 2.00-2.24), and the North (SMR = 2.60; 2.45-2.75). The estimates show that preventable neoplasms such as cervical cancer and those linked to underdevelopment, such as stomach and liver cancer, account for 49.4% of deaths among indigenous peoples. Compared to the reference population, mortality from liver, stomach, and colorectal cancer and leukemias was more than twice as high in indigenous men; among indigenous women, cervical, stomach, and liver cancer and leukemias were 30% higher.


El objetivo del estudio fue estimar la mortalidad por cáncer en pueblos indígenas del estado de Acre. Se trata de un estudio observacional descriptivo, a partir del banco de datos nominal del SIM (Sistema de Información Sobre Mortalidad), referente al período de 01 de enero de 2000 a 31 de diciembre de 2012. Se analizó la distribución de frecuencia de óbitos, por sexo y franja de edad, y se calculó la RMP (razón de mortalidad estandarizada), teniendo como referencia Goiânia-GO, Acre y la región norte. Se identificaron 81 óbitos, la mayoría en hombres (59,3%) y por encima de los 70 años. Los cinco principales focos en hombres fueron: estómago, hígado, colon y recto, leucemia y próstata. En las mujeres, cáncer cervical, estómago, hígado, leucemia y útero. En los hombres indígenas, hubo exceso de óbitos por cáncer de estómago, comparados con las poblaciones de Goiânia (RMP = 2,72; 2,58-2,87), estado de Acre (RMP = 2,05; 1,94-2,16) y región norte (RMP = 3,10; 2,93-3,27). Lo mismo se observó en caso de óbitos por hepatocarcinomas, teniendo por referencia Goiânia (RMP = 3,89; 3,66-4,14), estado de Acre (RMP = 1,79; 1,68-1,91) y región norte (RMP = 4,04; 3,77-4,30). Entre las mujeres indígenas, se destaca el exceso de cáncer cervical, en relación con Goiânia (RMP = 4,67; 4,41-4,93), estado de Acre (RMP = 2,12; 2,00-2,24) y región norte (RMP = 2,60; 2,45-2,75). Las estimativas apuntan a que neoplasias susceptibles de prevención, como la cervical, y vinculadas al subdesarrollo, como la de estómago e hígado, correspondieron a cerca de un 49,4% de los óbitos entre indígenas. Comparados con la población de referencia, la mortalidad por cáncer de hígado, estómago, colorrectal y leucemias fue más que el doble entre los hombres indígenas; por cáncer cervical, estómago, hígado y leucemias estuvo por encima de un 30% entre las mujeres indígenas.

7.
J Glob Oncol ; 4: 1-11, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30241178

RESUMO

PURPOSE: The incidence of thyroid cancer (TC) has increased substantially worldwide. However, there is a lack of knowledge about age-period-cohort (APC) effects on incidence rates in South American countries. This study describes the TC incidence trends and analyzes APC effects in Cali, Colombia; Costa Rica; Goiânia, Brazil; and Quito, Ecuador. MATERIALS AND METHODS: Data were obtained from the Cancer Incidence in Five Continents series, and the crude and age-standardized incidence rates were calculated. Trends were assessed using the estimated annual percentage change, and APC models were estimated using Poisson regression for individuals between age 20 and 79 years. RESULTS: An increasing trend in age-standardized incidence rates was observed among women from Goiânia (9.2%), Costa Rica (5.7%), Quito (4.0%), and Cali (3.4%), and in men from Goiânia (10.0%) and Costa Rica (3.4%). The APC modeling showed that there was a period effect in all regions and for both sexes. Increasing rate ratios were observed among women over the periods. The best fit model was the APC model in women from all regions and in men from Quito, whereas the age-cohort model showed a better fit in men from Cali and Costa Rica, and the age-drift model showed a better fit among men from Goiânia. CONCLUSION: These findings suggest that overdiagnosis is a possible explanation for the observed increasing pattern of TC incidence. However, some environmental exposures may also have contributed to the observed increase.


Assuntos
Neoplasias da Glândula Tireoide/epidemiologia , Adulto , Idoso , Brasil/epidemiologia , Estudos de Coortes , Colômbia/epidemiologia , Costa Rica/epidemiologia , Equador/epidemiologia , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Adulto Jovem
8.
Rev Bras Epidemiol ; 21: e180005, 2018.
Artigo em Inglês, Português | MEDLINE | ID: mdl-30088590

RESUMO

OBJECTIVES: To estimate the fraction of head and neck cancer (HNC) attributable to tobacco and alcohol in cities in the Midwest, Southeast and South regions of Brazil. METHODS: Case-control study including 1,594 cases of HNC and 1,292 hospital controls. The association of HNC with tobacco and alcohol was estimated by the odds ratio and respective 95% confidence intervals through non-conditional logistic regression, adjusted for age, sex, schooling, consumption of fruits and vegetables, alcohol drinking (to examine the tobacco effect), and tobacco smoking (to examine the alcohol effect). The proportions of HNC attributable to tobacco and alcohol were estimated through the attributable fraction (AF) calculation. Separate estimates were made for Goiânia (Midwest), Rio de Janeiro and São Paulo (Southeast) and Pelotas and Porto Alegre (South). RESULTS: The HNC fraction attributable to smoking was slightly higher in Goiânia (AF = 90%) than in cities in the Southeast (AF = 87%) and South (AF = 86%). The HNC fraction attributable to the consumption of alcoholic beverages presented similar and higher results in the cities of Southeast (AF = 78%) and South (AF = 77%) than in Goiânia (AF = 62%). CONCLUSION: The HNC fractions attributable to smoking were more expressive than for alcohol consumption. Although with discrete distinctions between them, the AFs to tobacco smoking and alcohol consumption in HNC observed in the cities of these three Brazilian regions were similar to those obtained in Latin America studies, but they were higher than in other parts in the world.


Assuntos
Consumo de Bebidas Alcoólicas/efeitos adversos , Neoplasias de Cabeça e Pescoço/epidemiologia , Neoplasias de Cabeça e Pescoço/etiologia , Fumar/efeitos adversos , Idoso , Brasil/epidemiologia , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Saúde da População Urbana
9.
Rev. bras. epidemiol ; 21: e180005, 2018. tab
Artigo em Português | LILACS-Express | ID: biblio-958830

RESUMO

RESUMO: Objetivo: Estimar a fração de câncer de cabeça e pescoço (CCP) atribuível ao tabaco e ao álcool em cidades das regiões Centro-Oeste, Sudeste E Sul do Brasil. Métodos: Estudo caso-controle com 1.594 casos de CCP e 1.292 controles hospitalares. A associação de CCP com tabaco e álcool foi estimada pela odds ratio e intervalos de confiança de 95% via regressão logística não condicional, ajustada por idade, sexo, escolaridade, consumo de frutas e legumes, consumo de bebidas alcoólicas (para examinar o efeito do tabaco) e tabagismo (para examinar o efeito do álcool). As proporções de CCP atribuíveis ao tabaco e ao álcool foram estimadas pelo cálculo da fração atribuível (FA). Foram realizadas estimativas separadas para Goiânia (Centro-Oeste), Rio de Janeiro e São Paulo (Sudeste) e Pelotas e Porto Alegre (Sul). Resultados: A fração de CCP atribuível ao tabagismo foi discretamente mais elevada em Goiânia (FA = 90%) em comparação às cidades do Sudeste (FA = 87%) e do Sul (FA = 86%). A fração de CCP atribuível ao consumo de bebidas alcoólicas apresentou resultados similares e mais altos nas cidades do Sudeste (FA = 78%) e Sul (FA = 77%) em comparação a Goiânia (FA = 62%). Conclusão: As frações de CCP atribuíveis ao tabagismo foram mais expressivas do que para o consumo de álcool. Embora com discretas distinções entre si, as FA para tabaco e álcool observadas nas cidades das três regiões brasileiras foram semelhantes às obtidas em estudos em outras regiões da América Latina, porém, mais altas que em outras partes do mundo.


ABSTRACT: Objectives: To estimate the fraction of head and neck cancer (HNC) attributable to tobacco and alcohol in cities in the Midwest, Southeast and South regions of Brazil. Methods: Case-control study including 1,594 cases of HNC and 1,292 hospital controls. The association of HNC with tobacco and alcohol was estimated by the odds ratio and respective 95% confidence intervals through non-conditional logistic regression, adjusted for age, sex, schooling, consumption of fruits and vegetables, alcohol drinking (to examine the tobacco effect), and tobacco smoking (to examine the alcohol effect). The proportions of HNC attributable to tobacco and alcohol were estimated through the attributable fraction (AF) calculation. Separate estimates were made for Goiânia (Midwest), Rio de Janeiro and São Paulo (Southeast) and Pelotas and Porto Alegre (South). Results: The HNC fraction attributable to smoking was slightly higher in Goiânia (AF = 90%) than in cities in the Southeast (AF = 87%) and South (AF = 86%). The HNC fraction attributable to the consumption of alcoholic beverages presented similar and higher results in the cities of Southeast (AF = 78%) and South (AF = 77%) than in Goiânia (AF = 62%). Conclusion: The HNC fractions attributable to smoking were more expressive than for alcohol consumption. Although with discrete distinctions between them, the AFs to tobacco smoking and alcohol consumption in HNC observed in the cities of these three Brazilian regions were similar to those obtained in Latin America studies, but they were higher than in other parts in the world.

10.
Cad Saude Publica ; 33(5): e00178915, 2017 Jun 12.
Artigo em Português, Inglês | MEDLINE | ID: mdl-28614453

RESUMO

The effects of dengue infection during pregnancy have not been previously studied in Rio Branco, Acre State, Brazil. The aim of this study was to determine the risks of maternal, fetal, and infant complications resulting from dengue infection during pregnancy. The study compared two cohorts of pregnant women, exposed versus unexposed to dengue virus, from 2007 to 2012. Incidence rates and risk ratios were estimated for maternal, fetal, and infant complications. In the exposed cohort there were 3 fetal deaths and 5 neonatal deaths. Two maternal deaths were identified in the exposed cohort, as opposed to none in the unexposed group (p = 0.040). The exposed cohort showed a risk ratio (RR) of 3.4 (95%CI: 1.02-11.23) for neonatal death. The risk ratio for early neonatal death was 6.8 (95%CI: 1.61-28.75). Ten infant deaths occurred in children of exposed pregnant women and 7 in unexposed (RR = 6.0; 95%CI: 2.24-15.87). Women infected with dengue virus in pregnancy showed increased risk ratio for maternal, neonatal, and infant mortality.


Assuntos
Dengue/complicações , Dengue/mortalidade , Complicações Infecciosas na Gravidez/mortalidade , Complicações Infecciosas na Gravidez/virologia , Adolescente , Adulto , Brasil/epidemiologia , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Morte Fetal , Humanos , Lactente , Recém-Nascido , Mortalidade Materna , Pessoa de Meia-Idade , Morte Perinatal , Gravidez , Estudos Retrospectivos , Fatores Socioeconômicos , Adulto Jovem
11.
Sci Total Environ ; 598: 722-732, 2017 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-28456124

RESUMO

Data on exposure to organochlorine (OC) pesticides in the Brazilian population are lacking. The purpose of this study was to investigate the distribution of serum levels of OC pesticides in Brazilian blood donors and to determine factors potentially influencing exposure levels. To conduct this biomonitoring survey, blood samples were collected from blood donors attending the Hematherapic Unit in Rio Branco, North of Brazil, in 2010-2011. A total of 1183 (99%) subjects answered to a questionnaire including information on sociodemographics, lifestyle, and dietary habits. Twenty four OC pesticides were measured in serum samples from 978 donors (82%). Associations of OC pesticide serum levels and the number of OCs detected per donor with their potential predictors were explored by logistic and Poisson regression, respectively. Of the 24 OC pesticides analyzed, the highest prevalence was observed for p,p'-dichlorodiphenylethane (p,p'-DDE) (32%), followed by lindane (γ-hexachlorocyclohexane) (20%), heptachlor (16%), and p,p'-dichlorodiphenyltrichloroethane (p,p'-DDT) (13%). 95th percentiles of levels of these four OC pesticides were: 3.85ng/mL (p,p'-DDE) (median<0.09ng/mL), 0.09ng/mL (lindane) (median<0.04ng/mL), 0.23ng/mL (heptachlor) (median<0.09ng/mL), and 0.27ng/mL (p,p'-DDT) (median<0.02ng/mL). Factors significantly associated with a more frequent detection of OC pesticides included age, gender, education, and frequency of fish, manioc flour, açai pulp, and Brazil nuts intake. Major predictors of the number of OC pesticides detected were age, marital status, income, education, and frequency of consumption of manioc flour, açai pulp, and Brazil nuts. For the first time in Brazil, a biomonitoring study has assessed the internal doses of OC pesticides in a large sample of the adult population and potential exposure determinants. Except for lindane, which was permitted for use as a wood preservative until 2007 in Brazil, occurrence of OC pesticides was lower than or in the same range as those observed in other countries.


Assuntos
Doadores de Sangue , Monitoramento Ambiental , Hidrocarbonetos Clorados/sangue , Praguicidas/sangue , Adolescente , Adulto , Idoso , Brasil , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto Jovem
12.
Asian Pac J Cancer Prev ; 18(3): 847-856, 2017 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-28441797

RESUMO

Background: A general lack of women`s awareness of breast cancer has been one of the barriers to screening and early presentation. Thus, the aim of this study was to evaluate levels of knowledge about risk factors, and early warning signs of breast cancer, and to determine factors associated with better levels of comprehension. Methods: A population-based cross-sectional study was carried out among 478 women over 40 years old, living in Rio Branco city, western Amazon. All were interviewed using the "Breast cancer knowledge, attitudes and practice scale", developed by American Cancer Society. Results: Among the respondents, only 28.6% of women were aware that advanced age highly increases the risk. Around 30% of participants recognized nipple retraction as a sign of breast cancer. Breast cancer knowledge varied according to age in such a way that the mean scores were high from 40-69 years and decreased dramatically among those aged ≥70 (ß=-0.06,p=0.031). Access to health services such as the Pap-test (ß=2.45,p=0.027) and attending a gynecologist in the past two years (ß=1.88,p=0.005) were statistically associated with the score of breast cancer knowledge. Conclusion: The findings indicate that women living in urban areas, having gynecological assessment, considering herself at high risk of developing breast cancer and thinking that breast cancer is a fatal disease are statistically associated with good knowledge of breast cancer risk factors, signs and symptoms, even adjusting for age and education.

13.
Reprod Toxicol ; 67: 174-185, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28077271

RESUMO

The association of occupational exposure to current-use pesticides with reproductive hormones, semen quality, and genital measures was investigated among young men in the South of Brazil. A cross-sectional study was conducted in 99 rural and 36 urban men aged 18-23 years. Information on pesticide use was obtained through questionnaire. Serum and semen samples were analyzed for sex hormones and sperm parameters, respectively, and measurement of anogenital distance (AGD) and testis volume (TV) were performed. Associations were explored using multivariate linear regression. Rural men had poorer sperm morphology, higher sperm count, and lower LH levels relative to urban subjects. Lifetime use of pesticides, especially herbicides and fungicides, was associated with poorer morphology and reduced LH and prolactin, with evidence of a linear pattern. Maternal farming during pregnancy was associated with larger AGD and TV. Chronic occupational exposure to modern pesticides may affect reproductive outcomes in young men.


Assuntos
Disruptores Endócrinos/toxicidade , Hormônios Gonadais/sangue , Exposição Ocupacional/efeitos adversos , Praguicidas/toxicidade , Espermatozoides/efeitos dos fármacos , Adolescente , Brasil , Estudos Transversais , Genitália Masculina/anatomia & histologia , Hormônios Gonadais/análise , Humanos , Modelos Lineares , Masculino , Exposição Ocupacional/análise , População Rural/estatística & dados numéricos , Análise do Sêmen , Espermatozoides/química , Inquéritos e Questionários , População Urbana/estatística & dados numéricos , Adulto Jovem
14.
Cad. saúde pública ; 33(5): e00178915, 2017. tab, graf
Artigo em Português | LILACS | ID: biblio-839716

RESUMO

Os efeitos da infecção por dengue na gestação são desconhecidos em Rio Branco, Acre, Brasil. O objetivo deste trabalho é determinar os riscos de complicações maternas, fetais e infantis decorrentes da infecção por dengue durante a gestação. Estudo de coorte de gestantes expostas e não expostas ao vírus do dengue no período 2007-2012. Foram estimadas incidências e razões de risco de complicações maternas, fetais e infantis. Na coorte exposta houve 3 óbitos fetais e 5 neonatais. Dois óbitos maternos foram identificados na coorte exposta, desfecho ausente no grupo não exposto (p = 0,040). A coorte exposta apresentou uma razão de riscos - RR = 3,4 (IC95%: 1,02-11,23) para óbito neonatal. Em relação ao desfecho óbito neonatal precoce, a razão de riscos observada foi de 6,8 (IC95%: 1,61-28,75). Dez óbitos infantis ocorreram nos filhos de gestantes expostas e 7 nos de não expostas (RR = 6,0; IC95%: 2,24-15,87). As mulheres infectadas com o vírus do dengue na gestação apresentaram uma razão de riscos maior em relação à ocorrência de óbitos maternos, neonatais e infantis.


Los efectos de la infección por dengue en la gestación son desconocidos en Río Branco, Acre, Brasil. El objetivo de este trabajo es determinar los riesgos de complicaciones maternas, fetales e infantiles, derivadas de la infección por dengue durante la gestación. Estudio de cohorte de gestantes expuestas y no expuestas al virus del dengue durante el período 2007-2012. Se estimaron incidencias y razones de riesgo de complicaciones maternas, fetales e infantiles. En la cohorte expuesta hubo 3 óbitos fetales y 5 neonatales. Dos óbitos maternos fueron identificados en la cohorte expuesta, desenlace ausente en el grupo no expuesto (p = 0,040). La cohorte expuesta presentó una razón de riesgos RR = 3,4 (IC95%: 1,02-11,23) para el óbito neonatal. En relación con el desenlace óbito neonatal precoz, la RR observada fue de 6,8 (IC95%: 1,61-28,75). Diez óbitos infantiles se produjeron en los hijos de gestantes expuestas y 7 en los de no expuestas (RR = 6,0; IC95%: 2,24-15,87). Las mujeres infectadas con el virus del dengue en la gestación presentaron una razón de riesgos mayor, en relación a la ocurrencia de óbitos maternos, neonatales e infantiles.


The effects of dengue infection during pregnancy have not been previously studied in Rio Branco, Acre State, Brazil. The aim of this study was to determine the risks of maternal, fetal, and infant complications resulting from dengue infection during pregnancy. The study compared two cohorts of pregnant women, exposed versus unexposed to dengue virus, from 2007 to 2012. Incidence rates and risk ratios were estimated for maternal, fetal, and infant complications. In the exposed cohort there were 3 fetal deaths and 5 neonatal deaths. Two maternal deaths were identified in the exposed cohort, as opposed to none in the unexposed group (p = 0.040). The exposed cohort showed a risk ratio (RR) of 3.4 (95%CI: 1.02-11.23) for neonatal death. The risk ratio for early neonatal death was 6.8 (95%CI: 1.61-28.75). Ten infant deaths occurred in children of exposed pregnant women and 7 in unexposed (RR = 6.0; 95%CI: 2.24-15.87). Women infected with dengue virus in pregnancy showed increased risk ratio for maternal, neonatal, and infant mortality.


Assuntos
Humanos , Feminino , Gravidez , Recém-Nascido , Lactente , Adolescente , Adulto , Pessoa de Meia-Idade , Adulto Jovem , Dengue/complicações , Dengue/mortalidade , Complicações Infecciosas na Gravidez/mortalidade , Complicações Infecciosas na Gravidez/virologia , Brasil/epidemiologia , Estudos de Casos e Controles , Estudos de Coortes , Morte Fetal , Mortalidade Materna , Morte Perinatal , Estudos Retrospectivos , Fatores Socioeconômicos
15.
Environ Res ; 151: 389-398, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27540871

RESUMO

Although numerous pesticides may interfere with thyroid function, however, epidemiological evidence supporting this relationship is limited, particularly regarding modern non-persistent pesticides. We sought to evaluate the association of agricultural work practices, use of contemporary-use pesticides, and OC pesticides residue levels in serum with circulating thyroid hormone levels in an agricultural population. A cross-sectional study was conducted with a random sample of 275 male and female farm residents in Farroupilha, South of Brazil. Information on sociodemographics, lifestyle and agricultural work was obtained through questionnaire. Blood samples were collected on all participants and analyzed for cholinesterase activity, serum residues of OC pesticides, and levels of free T4 (FT4), total T3 (TT3) and TSH. Non-persistent pesticides exposure assessment was based on questionnaire information on current use of pesticides, and frequency and duration of use, among others. Associations were explored using multivariate linear regression models. Total lifetime years of use of fungicides, herbicides and dithiocarbamates in men was associated with increased TSH accompanied by decrease in FT4, with evidence of a linear trend. In addition, there was an association between being sampled in the high pesticide-use season and increased TSH levels. Conversely, farm work and lifetime use of all pesticides were related with slight decrease in TSH and increased TT3 and FT4, respectively. In general, pesticide use was not associated with thyroid hormones in women. Subjects with detected serum concentrations of ß-hexachlorocyclohexane, endrin, dieldrin, heptachlor epoxide B, γ-chlordane, transnonachlor, heptachlor, p,p'-dichlorodiphenylethane and endosulfan II experienced slight changes in TT3; however, associations were weak and inconsistent. These findings suggest that both cumulative and recent occupational exposure to agricultural pesticides may affect the thyroid function causing hypothyroid-like effects, particularly in men.


Assuntos
Fazendeiros/estatística & dados numéricos , Hipotireoidismo/induzido quimicamente , Exposição Ocupacional/efeitos adversos , Praguicidas/efeitos adversos , Hormônios Tireóideos/sangue , Adolescente , Adulto , Brasil , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
16.
Cancer Biol Ther ; 17(6): 674-83, 2016 06 02.
Artigo em Inglês | MEDLINE | ID: mdl-27195611

RESUMO

Vascular Endothelial Growth Factor (VEGF) mediates angiogenesis, which is crucial for tumor development and progression. The present study aimed to evaluate the impact of VEGFA gene polymorphisms rs699947, rs833061, rs1570360, rs2010963 and rs3025039 on breast cancer features and prognosis. A cohort of Brazilian women (N = 1038) with unilateral non-metastatic breast cancer was evaluated. The association between VEGFA polymorphisms and histopathological features or pathological complete response (pCR) to neoadjuvant chemotherapy was evaluated by the Chi-square test, with calculation of the respective odds ratio (OR) and 95% confidence intervals (95% CI). The impact of individual categories on disease-free survival was evaluated using Kaplan-Meier curves and multivariate Cox proportional hazards regression models for calculation of adjusted hazard ratios (HRadjusted). Variant genotypes of rs699947 (CA + AA) were significantly associated with high-grade (G2 + G3) tumors (OR = 1.82; 95% CI = 1.15 - 2.89), and with shorter disease-free survival among patients treated with neoadjuvant chemotherapy followed by mastectomy (HRadjusted = 1.82; 95% CI = 1.16 - 2.86). Variant genotypes of rs833061 (TC + CC) were significantly associated with high-grade (G2 + G3) tumors (OR = 1.79; 95% CI = 1.12 - 2.84) and with positive lymph node status (OR = 1.34; 95% CI = 1.01 - 1.77), but showed no independent effect on disease-free survival. Variant haplotypes (*2 to *5) appear to favor pCR (OR = 7.1; 95% CI = 1.7 - 30.1). VEGFA genotyping may add to prognostic evaluation of breast cancer, with rs699947 being the most likely to contribute.


Assuntos
Neoplasias da Mama/genética , Fator A de Crescimento do Endotélio Vascular/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil , Neoplasias da Mama/patologia , Estudos de Coortes , Intervalo Livre de Doença , Genótipo , Haplótipos , Humanos , Pessoa de Meia-Idade , Prognóstico , Adulto Jovem
17.
Cad. saúde colet., (Rio J.) ; 24(1): 41-48, jan.-mar. 2016. tab, graf
Artigo em Inglês | LILACS-Express | ID: lil-781548

RESUMO

Abstract Aim To conduct an exploratory study about cancer incidence and mortality in rural workers in the state of Acre, Brazil. Methods The Proportional Cancer Incidence Ratio (PCIR) was calculated for rural male workers who live in Rio Branco, Acre, with histological diagnosis of cancer, and the Cancer Mortality Odds Ratio (CMOR) comparing cancer deaths occurred in rural workers in the state of Acre with those occurred in people with other occupations in the period from 2007 to 2012. Results High and statistically significant PCIR were observed for tumors of larynx, PCIR = 7.55 (95% CI 4.23-12.46); melanoma, PCIR = 11.44 (95% CI 6.55-18.54); and non – Hodgkin lymphoma, PCIR = 10.00 (95% CI 5.17-17.50) compared to the population of Rio Branco. Regarding the mortality compared analysis, we can observe CMOR = 6.94 (95% CI 1.73-27.89) for pancreatic cancer and CMOR = 13.89 (95% CI 1.25-153.60) for cancer of the urinary tract. Conclusion The results suggest an increase in the incidence estimates of mortality for selected tumor sites among rural workers that are consistent with the literature.


Resumo Objetivo Realizar um estudo exploratório sobre a incidência e mortalidade por câncer em trabalhadores rurais do estado do Acre, Brasil. Metodologia Foram calculadas a Razão Proporcional de Incidência de Câncer (PCIR) para os trabalhadores rurais residentes em Rio Branco, Acre, com diagnóstico de neoplasia e a Razão de Chances de Mortalidade por Câncer (CMOR), comparando-se os óbitos por câncer de trabalhadores rurais no estado do Acre com aqueles ocorridos com indivíduos de outras ocupações no período de 2007 a 2012. Resultados PCIR elevadas e estatisticamente significativas foram observadas para os tumores de laringe, PCIR = 7,55 (95% IC - 4,23-12,46), melanoma, PCIR = 11,44 (95% IC - 6,55-18,54) e linfoma não Hodgkin, PCIR = 10 (95% IC - 5,17-17,50) em relação à população de Rio Branco. Quanto à análise comparada da mortalidade, foram encontradas CMOR = 6,94 (95% IC - 1,73-27,89) para câncer de pâncreas e CMOR = 13,89 (95% IC - 1,25-153,60) para neoplasias do trato urinário. Conclusão Os resultados observados sugerem uma elevação nas estimativas de incidência e mortalidade de localizações tumorais selecionadas entre os trabalhadores rurais, consistentes com a literatura.

18.
J Obstet Gynaecol Res ; 42(5): 496-504, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26890127

RESUMO

AIM: Adverse birth outcomes are a major public health issue in rural areas, where several environmental risk factors, including pesticides, may endanger the health of women of reproductive age. We investigated the prevalence of selected birth outcomes among newborns from mothers living in urban and rural areas of a Brazilian municipality. METHODS: Information about all live births that occurred between 2004 and 2006 in the Municipality of Nova Friburgo, Brazil, was retrieved from the Live Birth Information System. Newborns were classified as rural or urban, according to the mother's residence address. RESULTS: Newborns from rural areas had a higher prevalence of very low-birthweight, low Apgar score, and malformation. On Poisson regression with adjustment for several confounders, rural offspring were more likely to have the aforementioned outcomes. CONCLUSIONS: Women in rural areas are at higher risk of giving birth to an infant with very low-birthweight, low 5-min Apgar score and malformations detectable at birth, regardless of socioeconomic and gestational conditions.


Assuntos
Índice de Apgar , Anormalidades Congênitas/epidemiologia , Recém-Nascido de muito Baixo Peso , Adulto , Brasil/epidemiologia , Estudos Transversais , Feminino , Humanos , Recém-Nascido , Gravidez , Resultado da Gravidez , Nascimento Prematuro/epidemiologia , Cuidado Pré-Natal , Prevalência , Fatores de Risco , Saúde da População Rural , População Rural , Fatores Socioeconômicos , Saúde da População Urbana , População Urbana , Adulto Jovem
19.
Eur J Cancer Prev ; 25(4): 344-8, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26275006

RESUMO

Most mouthwashes contain alcohol, a known cause of head and neck cancer (oral cavity, pharynx, larynx), likely through the carcinogenic activity of acetaldehyde, formed in the oral cavity from alcohol. We carried out a pooled analysis of 8981 cases of head and neck cancer and 10 090 controls from 12 case-control studies with comparable information on mouthwash use in the International Head and Neck Cancer Epidemiology Consortium. Logistic regression was used to assess the association of mouthwash use with cancers of the oral cavity, oropharynx, hypopharynx, and larynx, adjusting for study, age, sex, pack-years of tobacco smoking, number of alcoholic drinks/day, and education. Compared with never users of mouthwash, the odds ratio (OR) of all head and neck cancers was 1.01 [95% confidence interval (CI): 0.94-1.08] for ever users, based on 12 studies. The corresponding ORs of cancer of the oral cavity and oropharynx were 1.11 (95% CI: 1.00-1.23) and 1.28 (95% CI: 1.06-1.56), respectively. OR for all head and neck cancer was 1.15 (95% CI: 1.01-1.30) for use for more than 35 years, based on seven studies (P for linear trend=0.01), and OR 1.31 (95% CI: 1.09-1.58) for use more than one per day, based on five studies (P for linear trend <0.001). Although limited by the retrospective nature of the study and the limited ability to assess risks of mouthwash use in nonusers of tobacco and alcohol, this large investigation shows potential risks for head and neck cancer subsites and in long-term and frequent users of mouthwash. This pooled analysis provides the most precise estimate of the association between mouthwash use and head and neck cancer.


Assuntos
Neoplasias de Cabeça e Pescoço/etiologia , Antissépticos Bucais/efeitos adversos , Adulto , Estudos de Casos e Controles , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/epidemiologia , Humanos , Agências Internacionais , Masculino , Metanálise como Assunto , Prevalência , Prognóstico , Estudos Retrospectivos , Fatores de Risco
20.
Int J Epidemiol ; 45(3): 835-45, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26228584

RESUMO

BACKGROUND: Cigarette smoking is a major risk factor for head and neck cancer (HNC). To our knowledge, low cigarette smoking (<10 cigarettes per day) has not been extensively investigated in fine categories or among never alcohol drinkers. METHODS: We conducted a pooled analysis of individual participant data from 23 independent case-control studies including 19 660 HNC cases and 25 566 controls. After exclusion of subjects using other tobacco products including cigars, pipes, snuffed or chewed tobacco and straw cigarettes (tobacco product used in Brazil), as well as subjects smoking more than 10 cigarettes per day, 4093 HNC cases and 13 416 controls were included in the analysis. The lifetime average frequency of cigarette consumption was categorized as follows: never cigarette users, >0-3, >3-5, >5-10 cigarettes per day. RESULTS: Smoking >0-3 cigarettes per day was associated with a 50% increased risk of HNC in the study population [odds ratio (OR) = 1.52, 95% confidence interval (CI): (1.21, 1.90). Smoking >3-5 cigarettes per day was associated in each subgroup from OR = 2.01 (95% CI: 1.22, 3.31) among never alcohol drinkers to OR = 2.74 (95% CI: 2.01, 3.74) among women and in each cancer site, particularly laryngeal cancer (OR = 3.48, 95% CI: 2.40, 5.05). However, the observed increased risk of HNC for low smoking frequency was not found among smokers with smoking duration shorter than 20 years. CONCLUSION: Our results suggest a public health message that low frequency of cigarette consumption contributes to the development of HNC. However, smoking duration seems to play at least an equal or a stronger role in the development of HNC.


Assuntos
Fumar Cigarros/epidemiologia , Neoplasias de Cabeça e Pescoço/epidemiologia , Adulto , Idoso , Consumo de Bebidas Alcoólicas/epidemiologia , Estudos de Casos e Controles , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Saúde Pública , Fatores de Risco
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