Table 3. Diagnostic performance of the newly developed ICT and the Kalazar Detect Rapid Test in the detection of VL.

Diagnostic parameter	Newly developed ICT	Kalazar Detect
True positive (tp)	204	202
True negative (tn)	231	229
False positive (fp)	3	5
False negative (fn)	9	11
Sensitivity a	95.8% (95% CI: 92.1–98.1%)	94.8% (95% CI: 91.0–97.4%)
Specificity b	98.7% (95% CI: 96.3–99.7%)	97.9% (95% CI: 95.1–99.3%)
Diagnostic efficiency c	97.3% (95% CI: 95.4–98.6%)	96.4% (95% CI: 94.3–97.9%)

^a Sensitivity = tp × 100/(tp + fn)

^b Specificity = tn × 100/(tn + fp)

^c Diagnostic efficiency = (tn + tp) × 100/(tp + fp + tn + fn)