Skip to main content

Advertisement

Table 4 Statistical value of clinical signs, association of clinical signs and malaria tests (QBC and HRP2-based RDT) for the diagnosis of malaria, according to the results of the thick and thin Giemsa-stained blood films, considered to be the gold standard method (with 95% confidence intervals for sensibility and specificity)

From: Malaria relevance and diagnosis in febrile Burkina Faso travellers: a prospective study

  Sensibility Specificity Positive predictive value Negative predictive value
Isolated fever 78.3% 71.3% 44.3% 91.9%
[68.5 – 88.0] [65.6 – 77.1]
Fever present on examination 31.9% 85.2% 38.6% 81.1%
[20.9 – 42.9] [80.7 – 89.8]
Isolated fever present on examination 26.1% 96.2% 66.7% 81.7%
[15.7 – 36.5] [93.8 – 98.6]
Digestive symptoms 13.0% 62.9% 9.3% 71.3%
[5.1 – 21.0] [57.2 – 69.4]
QBC 98.6% 99.6% 98.6% 99.6%
  [9.7 – 100] [98.8 – 100]   
HRP2 84.0% 98.0% 92.0% 95.0%
(for P. falciparum) [75.4 – 92.7] [96.7 – 99.9]