Table 2. Calibrator reactivity and reproducibility of results assessed by repeat testing.

Specimen	Maxim					Sedia
	N	Mean OD	CV OD (%)	Mean ODn	CV ODn (%)	N	Mean OD	CV OD (%)	Mean ODn	CV ODn (%)
Calibrators
Alla	222	0.75	10.4	N/A	N/A	219	0.65	15.0	N/A	N/A
Median valuesb	74	0.75	9.3	N/A	N/A	73	0.64	14.2	N/A	N/A
Kit-supplied control specimens
Acute (low)	222	0.36	10.5	0.49	8.0	219	0.35	16.2	0.55	14.0
Chronic (high)	222	1.37	8.6	1.83	7.9	219	1.31	10.4	2.06	12.7
Blinded control specimens
BC-1	25	3.30	5.1	4.45	9.3	25	3.07	5.6	4.94	15.0
BC-2	25	3.04	5.9	4.08	8.9	25	2.83	6.2	4.5	13.2
BC-3	25	0.40	14.2	0.54	14.8	25	0.67	20.0	1.02	13.6

^aAverage over all calibrator values;

^bAverage over median calibrator values (one value per plate).