TABLE 3.

Reflex testing performance

Metric	No. (%)	Pool N1 or N2 CT value of <30, no. (%)
Positive pools with available reflex test data	124	86/124 (69.4)
Pools with complete BinaxNOW deconvolution (all individuals tested by BinaxNOW)	114/124 (91.9)	80/114 (70.2)
True-positive BinaxNOWa	89/114 (78.1)	74/89 (83.1)
False-negative BinaxNOWb	5/114 (4.4)	1/5 (20.0)
Likely false-negative BinaxNOWc	4/114 (3.5)	1/4 (25.0)
Pool PCR result unconfirmedd	12/114 (10.5)	2/12 (16.7)
Unknowne	4/114 (3.5)	2/4 (50.0)

^aIndividual in pool tested positive by BinaxNOW (in 88/89 cases, only one positive BinaxNOW result was observed; in 1/89, two were observed [the two individuals were from the same family]).

^bAll BinaxNOW results were negative, but an individual in the pool tested positive by reflex PCR.

^cAll BinaxNOW results were negative, but an individual in the pool had an inconclusive reflex PCR result (only 1 of 2 PCR targets positive).

^dAll BinaxNOW and additional reflex testing results (repeat BinaxNOW testing (n = 4) or PCR testing (n = 8) on all individuals in the pool) were negative, making it impossible to confirm the positive pool PCR result and leaving open the possibility that the PCR result was a false positive.

^eAll BinaxNOW results were negative, but additional reflex PCR results were not available.