TABLE 3.

Performance of Onychodiag relative to culture and DE alone and in combination for the diagnosis of dermatophyte onychomycosis on 127 RegS

RegS mycology	Total no. of samples	No. of RegS with Onychodiag resulta:
		Positive	Gray zone	Negative
Dermatophyte culture
Positive	34	34	0	0
Negativeb (no. sterile, no. nondermatophytes)	93 (48, 45)	32 (14, 18)	6 (4, 2)	55 (30, 25)
DE
Positive	33	31	0	2
Negative	94	35	6	53
Combination of DE and culture
Positive dermatophyte culture or positive DE	33	31	0	2
Negative dermatophyte culture and negative DEb	80	21	6	53

^aPositive, OD ≥ 0.5; gray zone, 0.3 ≤ OD < 0.5; negative, OD < 0.3.

^bIncluding sterile cultures and cultures of nondermatophyte species.