Table 3. Comparison of four rapid diagnostic tests on randomly-selected serum samples.

MAT	Pasteur RDT 1/400	Leptocheck	Elisa Serion (+RF absorbant)	Elisa Panbio
Positive 72	Positive 59	Positive 59	Positive 58	Positive 53
				Negative 5
			Negative 1	Positive 0
				Negative 1
		Negative 0	Positive 0	Positive 0
				Negative 0
			Negative 0	Positive 0
				Negative 0
	Negative 13	Positive 11	Positive 8	Positive 1
				Negative 7
			Negative 3	Positive 0
				Negative 3
		Negative 2	Positive 0	Positive 0
				Negative 0
			Negative 2	Positive 0
				Negative 2
Sensitivity	81.9% [71.5–89.1]	97.2% [90.4–99.2]	91.7% [83–86.1]	75% [63.9–83.6]
Negative 72	Negative 69	Negative 38	Negative 59	Negative 72
Specificity	95.8% [88.4–98.6]	52.8% [41.4–63.9]	81.9% [71.5–89.1]	100% [94.9–100]
LR+ *	19.7 [6.5–59.9]	2.1 [1.6–2.6]	5.1 [3.1–8.3]	NA
LR− †	0.2 [0.1–0.3]	0.05 [0.01–0.21]	0.1 [0.05–0.2]	0.25 [0.17–0.37]
DOR ‡	104.4 [28.4–384]	39.1 [8.9–171.8]	49.9 [17.8–139.7]	NA

NA: Not Applicable.

^*LR+: Positive Likelihood Ratio – [95% CI].

^†LR−: Negative Likelihood Ratio – [95% CI].

^‡DOR: Diagnostic Odds Ratio – [95% CI].

Sensitivity (%), number of positive rapid diagnostic test among patients with serological evidence (MAT) of leptospirosis (n = 72) – [95% CI].

Specificity (%), negative rapid diagnostic test among serum samples from patients with no serological evidence (MAT) of leptospirosis (n = 72) – [95% CI].