TABLE 2.

Sensitivities and specificities of ELISA and GPAT for diagnosis of S. stercoralis infection in the population sampled in northeast Thailand^a

Diagnostic method	Village	Sensitivity (%)	Specificity (%)	Positive predictive value (%)	Negative predictive value (%)
ELISA	HMT	75	71	50	88
	BM	75	91	73	92
	KT	43	75	67	53
	NP	85	83	43	97
	NEK	80	100	100	93
	Overall	73	86	60	92
GPAT	HMT	81	81	41	88
	BM	75	75	41	88
	KT	79	79	69	70
	NP	90	90	39	98
	NEK	90	90	60	95
	Overall	81	81	47	93

^aThe results of APCT, performed with samples from the same individuals, were used as the reference. The analysis was based on a total sample size of 459 individuals.