Human Trypanosoma cruzi infection in the Argentinean Chaco: risk factors and identification of households with infected children for treatment

Table 4 Variables evaluated for the development of risk indices to identify households with Trypanosoma cruzi-infected children ≤ 18 years old

Variable	N	TP	TN	FP	FN	Sensitivity	Specificity
Self-reported residence in an infested house	280	66	70	136	8	89.2	34.0
Maternal seropositivity	245	47	118	61	19	71.2	65.9
Co-inhabiting with a seropositive adult	280	45	125	81	29	60.8	60.7
Suitable walls for triatomines	259	49	82	109	19	72.1	42.9
Recent residence at the current house	272	12	174	26	60	16.7	87.0
Index 1	280	72	31	175	2	97.3	15.0
Index 2	280	73	52	154	1	98.6	25.2

N number of households with available data, TP true-positive, households with infected children correctly identified, TN true-negative households without infected children correctly identified, FP false-positive households without infected children incorrectly identified as harboring them. FN false-negative households with infected children incorrectly identified as not harboring them

ISSN: 1756-3305