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Description

Kotepui et al developed a decision tree for distinguishing malaria from dengue fever based on the results of a complete blood count (CBC). The authors are from Walailak University in Thailand.


Parameters:

(1) absolute neutrophil count per µL

(2) hemoglobin in g/dL

(3) absolute lymphocyte count per µL

(4) MCHC in g/dL

(5) gender

 

Findings

Diagnosis

absolute neutrophils >= 2,800 per µL

80% malaria

absolute neutrophils < 2,800 per µL; hemoglobin >= 11 g/dL

80% dengue

absolute neutrophils < 2,800 per µL; hemoglobin >= 11 g/dL; absolute lymphocyte count >= 800 per µL

90% malaria

absolute neutrophils < 2,800 per µL; hemoglobin >= 11 g/dL; absolute lymphocyte count < 800 per µL; MCHC <= 33 g/dL

100% dengue

absolute neutrophils < 2,800 per µL; hemoglobin >= 11 g/dL; absolute lymphocyte count < 800 per µL; MCHC > 33 g/dL; male

50% dengue

absolute neutrophils < 2,800 per µL; hemoglobin >= 11 g/dL; absolute lymphocyte count < 800 per µL; MCHC > 33 g/dL; female

100% malaria

 

Co-infection with both malaria and dengue fever was not identified in the study population but could occur.


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