Table 1 Sensitivity and specificity (±95% confidence intervals) of the Abbot Determine test.

	Clinic: whole blood		Lab: whole blood		Lab: serum
	Sensitivity % (95% CI)	Specificity % (95% CI)	Sensitivity % (95% CI)	Specificity % (95% CI)	Sensitivity % (95% CI)	Specificity % (95% CI)
Tanzania	59.6 (12.7)	99.4 (0.7)	80.7 (10.2)	99.4 (0.7)	91.2 (7.3)	97.9 (1.3)
Brazil	88.5 (8.7)	97.9 (2.0)			88.5 (8.7)	97.9 (2.0)
China	81.9 (8.3)	99.4 (0.8)	77.1 (9.0)	100 (n = 362)	100 (n = 83)	98.9 (1.1)
Haiti	72.5 (13.8)	98.5 (0.9)	100 (n = 40)	95.7 (1.5)	100 (n = 40)	95.7 (1.5)