. Author manuscript; available in PMC: 2015 Mar 3.

Published in final edited form as: Am J Ind Med. 2010 Oct 18;54(3):205–209. doi: 10.1002/ajim.20909

TABLE I.

Post-Test Probability of BeS (PTP_BeS) at Various Prevalences, by Result Combination

Results (three-tests)^a	Post-test probability of BeS (PTP-BeS)^b
	Population prevalence
	1%	2%	3%	4%	5%	6%	7%	8%	9%	10%
3 AB	0.999	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000
2 AB,1BL	0.996	0.998	0.999	0.999	0.999	0.999	0.999	1.000	1.000	1.000
1AB, 2 BL	0.972	0.986	0.991	0.993	0.995	0.996	0.996	0.997	0.997	0.997
2 AB,1NL	0.896	0.946	0.964	0.973	0.978	0.982	0.985	0.987	0.988	0.989
3 BL	0.837	0.912	0.940	0.955	0.964	0.970	0.974	0.978	0.980	0.983
1AB,1BL,1NL	0.557	0.717	0.794	0.838	0.867	0.888	0.903	0.915	0.925	0.932

Single test first round, split sample second round if AB or BL.

If PTP_BeS ≥ 0.9995, then PTP_BeS ~1.000.