A screening tool for dengue fever in children

Wen Pin Lai, Tsair Wei Chien, Hung Jung Lin, Shih Bin Su, Chih-Hung Chang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Background: Dengue fever (DF) is a significant public health issue in Asia. We aimed to use clinical and laboratory data to derive a rapid and accurate case-finding tool for DF in children. Methods: This retrospective study used 24 DF-related characteristics and clinical features (17 clinical; 7 laboratory) of 177 pediatric patients (69 diagnosed with DF). Data were psychometrically evaluated using a Rasch measurement model, and their values for predicting DF risk were evaluated. Results: The 14-item scale (DF-14) fit the measurement model in assessing the likelihood of DF. When a cutoff point of-1.15 (in logit) of the DF-14 scale was used, the sensitivity was 0.76 and the specificity was 0.76. The area under the curve was 0.93 (95% confidence interval: 0.89-0.97). The DF-2 scale, comprised of white blood cell and platelet counts, was simple but clinically useful. Conclusions: Simple laboratory data, such as those in the DF-2 and DF-14 scales, are useful for the early detection of DF risk in children. The DF-14 scale helps discriminate DF from other febrile illnesses and may eliminate the need for a costly and time-consuming dengue confirmation test.

Original languageEnglish (US)
Pages (from-to)320-324
Number of pages5
JournalPediatric Infectious Disease Journal
Volume32
Issue number4
DOIs
StatePublished - Jan 1 2013

Keywords

  • Dengue fever
  • Dengue serologic test
  • Rasch analysis
  • Receiver operating characteristic curve

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Microbiology (medical)
  • Infectious Diseases

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