Table 3.

Summary of univariate sensitivity analyses (TST with PPD RT 23 versus Diaskintest).

Variable description	Variable low	Base	Variable high	Impact	Low	High
Prevalence LTBI	0.11	0.22	0.33	Increase	2575.60	0
Probability of returning to TST reading	0.71	0.88	0.97	Increase	− 2016.46	0
TST with PPD RT 23 specificity	0.72	0.59	0.91	Decrease	− 2256.90	− 1428.58
Cost per Diaskintest	9.48	4.82	15.56	Increase	− 1218.05	− 1013.16
Probability of starting LTBI treatment	0.55	0.82	0.95	Increase	− 1480.34	− 1345.55
Cost per TST with PPD RT 23	6.95	7.26	9.53	Decrease	− 1451.59	− 1364.64
Diaskintest specificity	0.86	0.93	0.98	Increase	− 1396.41	− 1364.55

LTBI latent tuberculosis infection, TST tuberculin skin test, PPD RT 23 purified protein derivative.