Table 2.

Concordance among three MAST assays.

		RIDA		Agreement (%)	kappa	Polycheck		Agreement (%)	kappa
		N*	P†			N	P
Inhalant panel
MAST Optigen	N	529	26	87.6	0.59	529	11	86.8	0.51
	P	61	84			79	61
Polycheck	N	574	54	89.9	0.55
	P	17	55
Food panel
MAST Optigen	N	600	23	91.3	0.60	552	32	90.6	0.61
	P	40	57			32	64
Polycheck	N	572	31	88.3	0.46
	P	51	46

RIDA: RIDA Allergy Screen, Polycheck: Polycheck Allergy, N: negative, P: positive. *Number of tests with negative results was shown. ^†Number of tests with positive results was shown.