Skip to main content

Table 4 Value of selected clinical features in predicting a laboratory-positive diagnosis of dengue in suspected dengue patients during the 2007 outbreak in southern Taiwan

From: Clinical and laboratory predictive markers for acute dengue infection

Laboratory feature Dengue (+) Dengue (−) Sensitivity (%) Specificity (%) Positive predictive value (%) Negative predictive value (%)
(1) Fever 253/376 99/114 67.3 12.3 71.7 10.2
(2) Rash 222/376 28/114 59.2 75.4 88.8 35.8
(3) Petechiae 184/376 85/114 37 25.4 62.1 10.9
(4) Myalgia 268/376 53/114 46.8 53.5 76.9 23.4
(5) Nausea/vomiting 126/376 38/114 33.5 66.7 76.8 23.3
(6) Positive tourniquet test* 178/263 0/68 34.2 100 100 28.2
  1. *Numbers were presented as positive cases/examined cases.