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Is Pregnancy Associated with Severe Dengue? A Review of Data from the Rio de Janeiro Surveillance Information System

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  • Carolina Romero Machado
  • Elizabeth Stankiewicz Machado
  • Roger Denis Rohloff
  • Marina Azevedo
  • Dayse Pereira Campos
  • Robson Bruniera de Oliveira
  • Patrícia Brasil

Abstract

Background: Dengue is a reportable disease in Brazil; however, pregnancy has been included in the application form of the Brazilian notification information system only after 2006. To estimate the severity of maternal dengue infection, the available data that were compiled from January 2007 to December 2008 by the official surveillance information system of the city of Rio de Janeiro were reviewed. Methods and Principal Findings: During the study period, 151,604 cases of suspected dengue infection were reported. Five hundred sixty-one women in their reproductive age (15–49 years) presented with dengue infection; 99 (18.1%) pregnant and 447 (81.9%) non-pregnant women were analyzed. Dengue cases were categorized using the 1997 WHO classification system, and DHF/DSS were considered severe disease. The Mann-Whitney test was used to compare maternal age, according to gestational period, and severity of disease. A chi-square test was utilized to evaluate the differences in the proportion of dengue severity between pregnant and non-pregnant women. Univariate analysis was performed to compare outcome variables (severe dengue and non-severe dengue) and explanatory variables (pregnancy, gestational age and trimester) using the Wald test. A multivariate analysis was performed to assess the independence of statistically significant variables in the univariate analysis. A p-value

Suggested Citation

  • Carolina Romero Machado & Elizabeth Stankiewicz Machado & Roger Denis Rohloff & Marina Azevedo & Dayse Pereira Campos & Robson Bruniera de Oliveira & Patrícia Brasil, 2013. "Is Pregnancy Associated with Severe Dengue? A Review of Data from the Rio de Janeiro Surveillance Information System," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 7(5), pages 1-4, May.
    • Handle: RePEc:plo:pntd00:0002217
    DOI: 10.1371/journal.pntd.0002217
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    Cited by:

    1. Kangzhuang Yuan & Yuan Chen & Meifeng Zhong & Yongping Lin & Lidong Liu, 2022. "Risk and predictive factors for severe dengue infection: A systematic review and meta-analysis," PLOS ONE, Public Library of Science, vol. 17(4), pages 1-18, April.
    2. Jiangping Ren & Zhengting Wang & Enfu Chen, 2019. "Different Associations between DC-SIGN Promoter-336G/A ( rs4804803 ) Polymorphism with Severe Dengue in Asians and South-Central Americans: a Meta-Analysis," IJERPH, MDPI, vol. 16(8), pages 1-13, April.

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