Prevalence of Asymptomatic Malaria among Children in the Tamale Metropolis: How Does the PfHRP2 CareStart™ RDT Perform against Microscopy?

Table 3

Performance of RDT compared to microscopy.

Characteristics		Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Cohen’s kappa value ( value)	Chi-square value ( value)
Age range	<5	50.0	89.7	25.0	96.3	0.271 (0.106)	2.618 (<0.001)
	5–10	100.0	95.6	18.2	100.0	0.296 (<0.001)	35.984 (<0.001)
	>10	40.0	91.2	18.2	96.9	0.199 (0.025)	5.023 (0.025)
Gender	Male	0	89.8	NA	100	NA	NA
	Female	55.6	96.5	41.7	98.0	0.449 (0.139)	42.891 (<0.001)
Overall		55.6	93.8	19.23	98.45	0.257 (<0.001)	30.579 (<0.001)

Statistically significant at . NA: not applicable (because microscopy did not detect any positives in this category).