Variation in fiberoptic bead-based oligonucleotide microarrays: dispersion characteristics among hybridization and biological replicate samples

Table 2 Dispersion parameters for case/control comparisons. First two data columns show the coefficients of standard deviation function a and b. The last column labeled Kα shows the coefficient defining boundaries of the probability interval 0.9; CV is the coefficient of variation.

Pair	a	b	Kα
Untreated (GN1) vs. Untreated (GN2):
means (n = 4)	2.7	0.059	2.00
CV	0.25	0.32	0.10
Treated (GO1) vs. Treated (GO2):
means (n = 4)	2.3	0.062	1.84
CV	0.05	0.30	0.05
Untreated (GN1, GN2) vs. Treated (GO1, GO2):
means (n = 8)	2.4	0.120	2.13
CV	0.19	0.11	0.09

ISSN: 1745-6150