Table 2. Effect of temperature and humidity on performance of the POC test compared to Amplicor PCR.

Temperature threshold: 31.4°C
	POC test – reader 1		POC test – reader 2
	Below threshold	Above threshold	Below threshold	Above threshold
True positive	10	9	10	7
True negative	956	505	961	531
False positive	21	100	16	74
False negative	7	2	7	4
Sensitivity	58.8(32.9–81.6)	81.8(48.2–97.7)	58.8(32.9–81.6)	63.6(30.8–89.1)
Specificity	97.9(96.7–98.7)	83.5(80.3–86.4)	98.4(97.4–99.1)	87.8(84.9–90.3)
PPV	32.3(16.7–51.4)	8.3(3.8–15.1)	38.5(20.2–59.4)	8.6(3.5–17.0)
NPV	99.3(98.5–99.7)	99.6(98.6–100)	99.3(98.5–99.7)	99.3(98.1–99.8)

Values in parentheses are 95% CI.