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. Author manuscript; available in PMC: 2013 Sep 28.
Published in final edited form as: Epidemiol Methods. 2012 Aug;1(1):33–54. doi: 10.1515/2161-962X.1005

Table 6.

Parameter estimates and bootstrap confidence intervals from our latent class model with continuous covariates, applied to T. cruzi test data from La Joya, Peru.

Parameter Model estimate (95% CI)
ELISA sensitivity (S1) 78% (62–100%)
ELISA specificity (C1) 100% (99–100%)
IFA sensitivity (S2) 73% (65–81%)
IFA specificity (C2) 99% (96–100%)
Pre-spray risk parameter (βpre) 0.019 (0.013–0.026)
Post-spray risk parameter (βpost) 0 (0–0.0005)
Parameter for risk outside La Joya (βout) 0.0031 (0.0016–0.0050)
Congenital transmission parameter (K) 0.0047 (0–0.014)