Evaluating Malaria Prevalence Using Clinical Diagnosis Compared with Microscopy and Rapid Diagnostic Tests in a Tertiary Healthcare Facility in Rivers State, Nigeria

Table 2

Diagnostic efficiency of presumptive diagnosis and RDTs using microscopy as a standard.

Diagnostic techniques	Diagnostic parameters (%)
	SN	SP	DA	PPV	NPV
Clinical diagnosis	47.2	95.9	77.8	87.1	75.5
Microscopy	100	100	100	100	100
RDTs	73.7	97.3	88.3	94.3	85.8

SN = sensitivity; SP = specificity; DA = diagnostic accuracy; PPV = positive predictive value; NPV = negative predictive value; and = 10.150, Df = 4, and value = 0.038 ().