Clinical performance testing of the automated haematology analyzer XN-31 prototype using whole blood samples from patients with imported malaria in Japan

Table 1 Sensitivity, specificity, PPV and NPV of each diagnostic method

Method	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Microscopy	97	100	100	98
XN-31p LM mode^a	97	100	100	98
XN-31p PD mode^a	94	100	100	96
RDT	97	96	94	98
RDT T1^b	97	96	94	98
RDT T2^c	64	100	100	80

All values were calculated using the results of the nested PCR as a standard
^aSome cases flagged as “MI-RBC Abn” in were excluded from the calculation
^bThe values regarding the P. falciparum detection ability of the T1 band were calculated
^cThe values regarding the Pan-parasites detection ability of the T2 band were calculated

ISSN: 1475-2875