21
views
0
recommends
+1 Recommend
2 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Desfechos relacionados à gravidez em áreas contaminadas, SP, Brasil Translated title: Pregnancy outcomes in contaminated areas, SP, Brazil

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          OBJETIVO: Estimar e comparar a prevalência dos eventos relacionados à gravidez (engravidar, baixo peso de nascimento, parto prematuro, aborto espontâneo, natimortalidade, malformações congênitas e gemelaridade) em populações exposta e não-exposta aos contaminantes ambientais na região do estuário de Santos e São Vicente. MÉTODOS: O estudo fez parte de um amplo projeto financiado pelo CNPq, que teve como objetivo estimar os efeitos à saúde associados à exposição aos contaminantes ambientais entre os moradores da Baixada Santista. O estudo transversal avaliou dois bairros do município de São Vicente, próximos a uma área contaminada, e um bairro no município de Bertioga, área controle. Para a obtenção dos dados foi aplicado um questionário estruturado e pré-testado em 236 domicílios em São Vicente e 251 domicílios em Bertioga. Para avaliar associações entre a área e as variáveis qualitativas utilizouse o teste qui-quadrado ou teste exato de Fisher; para avaliar as diferenças entre as variáveis, o teste t de Student ou o teste de comparação de duas proporções, e adotado nível de significância de 5%. RESULTADOS: Houve associação significativa entre morar em Bertioga (p = 0,01) e o número de gestações ocorridas nos últimos cinco anos. Em São Vicente, 64 (28,3%) mulheres em idade fértil engravidaram, enquanto em Bertioga foram 109 (38,8%). Não houve associações estatísticas significativas nas áreas com os demais desfechos da gravidez avaliados. CONCLUSÕES: As prevalências e as razões de chances prevalentes de baixo peso ao nascer, nascimentos prematuros e abortos espontâneos foram maiores nas áreas contaminadas, sem associações significativas. A evidência do estudo de diminuição do número de gestações na área contaminada reforça a necessidade de aprofundamento de estudos na região do estuário de Santos e São Vicente.

          Translated abstract

          OBJECTIVE: Estimate and compare prevalence of events related to pregnancy (pregnancy, low birth weight, premature delivery, spontaneous abortion, stillbirth, congenital malformation, and multiple births) in populations exposed and non-exposed to environmental contaminants in Santos and São Vicente Estuary. METHODS: This study was part of a large project financed by CNPq, which aimed to estimate health effects associated with environmental area, contaminants exposure among individuals of the Baixada Santista region. This cross-sectional study evaluated two neighborhoods of São Vicente near a contaminated area, and one neighborhood of Bertioga, the control area. A structured and previously tested questionnaire was applied at 236 households in São Vicente and 251 households in Bertioga in order to obtain the data. The chi-square test or Fisher's exact test were used to evaluate associations between area and qualitative variables; Student's t test or two proportion comparison test were used to evaluate differences between variables; and a significance level of 5% adopted. RESULTS: There was significant association between living in Bertioga (p = 0.01) and number of pregnancies in the past five years. In São Vicente, 64 (28.3%) childbearing age women became pregnant whereas in Bertioga there where 109 (38.8%). There were no statistical significant associations between living in any area and others pregnancy outcomes evaluated. CONCLUSION: Although no significant association was found, prevalence of low birth weight, preterm delivery and spontaneous abortion and prevalent odds ratio were higher in contaminated area. This study's evidence of a reduced number of pregnancies in contaminated area strengthens the need for additional more in-depth studies in Santos and São Vicente Estuary.

          Related collections

          Most cited references45

          • Record: found
          • Abstract: not found
          • Article: not found

          Bioestatística: princípios e aplicações

            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Relation between ambient air quality and selected birth defects, seven county study, Texas, 1997-2000.

            A population-based case-control study investigated the association between maternal exposure to air pollutants, carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide, and particulate matter <10 microm in aerodynamic diameter during weeks 3-8 of pregnancy and the risk of selected cardiac birth defects and oral clefts in livebirths and fetal deaths between 1997 and 2000 in seven Texas counties. Controls were frequency matched to cases on year of birth, vital status, and maternal county of residence at delivery. Stationary monitoring data were used to estimate air pollution exposure. Logistic regression models adjusted for covariates available in the vital record. When the highest quartile of exposure was compared with the lowest, the authors observed positive associations between carbon monoxide and tetralogy of Fallot (odds ratio = 2.04, 95% confidence interval: 1.26, 3.29), particulate matter <10 microm in aerodynamic diameter and isolated atrial septal defects (odds ratio = 2.27, 95% confidence interval: 1.43, 3.60), and sulfur dioxide and isolated ventricular septal defects (odds ratio = 2.16, 95% confidence interval: 1.51, 3.09). There were inverse associations between carbon monoxide and isolated atrial septal defects and between ozone and isolated ventricular septal defects. Evidence that air pollution exposure influences the risk of oral clefts was limited. Suggestive results support a previously reported finding of an association between ozone exposure and pulmonary artery and valve defects.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Association between air pollution and intrauterine mortality in São Paulo, Brazil.

              The associations among daily counts of intrauterine mortality and pollutant concentrations (NO2, SO2, CO, O3, and particulate matter (3/4)10 microm) were investigated for the period ranging from January 1991 to December 1992 in the city of São Paulo, Brazil. We used Poisson regression techniques, adjusted for season and weather. The association between intrauterine mortality and air pollution was strong for NO2 (coefficient = 0.0013/ microg/m3; p<0.01) but lesser for SO2 (coefficient = 0.0005/ microg/m3; p<0.10) and CO (coefficient = 0.0223/ppm; p<0.10). A significant association was observed when an index that combined these three pollutants was considered in the models instead of considering each pollutant individually (p<0.01). These associations exhibited a short time lag, not over 5 days. In addition, some evidence of fetal exposure to air pollution was obtained by disclosing a significant association between the levels of carboxyhemoglobin of blood sampled from the umbilical cord and ambient CO levels in children delivered by nonsmoking pregnant women in the period from May to July 1995. Our results suggest that air pollution in São Paulo may promote adverse health effects on fetuses. Images Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8
                Bookmark

                Author and article information

                Journal
                rbepid
                Revista Brasileira de Epidemiologia
                Rev. bras. epidemiol.
                Associação Brasileira de Saúde Coletiva (Rio de Janeiro, RJ, Brazil )
                1415-790X
                1980-5497
                December 2011
                : 14
                : 4
                : 598-608
                Affiliations
                [01] São Paulo orgnameUniversidade de São Paulo orgdiv1Faculdade de Medicina Brazil
                [02] São Paulo orgnameUniversidade Católica de Santos orgdiv1Programa de Pós-graduação em Saúde Coletiva Brazil
                Article
                S1415-790X2011000400007 S1415-790X(11)01400407
                10.1590/S1415-790X2011000400007
                c3efaa39-20b9-4452-bbd1-7631229bed01

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 18 February 2011
                : 27 September 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 11
                Product

                SciELO Public Health

                Self URI: Full text available only in PDF format (EN)
                Self URI: Texto completo somente em PDF (PT)
                Categories
                Artigos Originais

                Pregnancy outcomes,Environmental pollution,Compostos organoclorados,Baixo peso ao nascer,Prematuridade,Metais pesados,Organochlorine compounds,Low birth weight,Prematurity,Heavy metals,Gravidez,Poluição ambiental

                Comments

                Comment on this article